1
FEATURES APPLICATIONS
DESCRIPTION
YFP, YZP, AND YZTPACKAGES
LaserMarkingView BumpView
C
B
2 1
A
C
B
1 2
A
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
LOW INPUT VOLTAGE, ULTRA-LOW r
ON
LOAD SWITCHES
•PDAs•Input Voltage: 0.9 V to 3.6 V
•Cell Phones•Ultra-Low ON Resistance
•GPS Devices– r
ON
= 14 m Ωat V
IN
= 3.6 V
•MP3 Players– r
ON
= 20 m Ωat V
IN
= 2.5 V
•Peripheral Ports– r
ON
= 33 m Ωat V
IN
= 1.8 V
•Portable Media Players– r
ON
= 67 m Ωat V
IN
= 1.2 V
•RF Modules– r
ON
= 116 m Ωat V
IN
= 1.0 V•2-A Maximum Continuous Switch Current•Ultra-Low Quiescent Current: 78 nA at 1.8 V
TPS22921, TPS22922, and TPS22922B are ultra-low•Ultra-Low Shutdown Current: 35 nA at 1.8 V
r
ON
load switches with controlled turn on.TPS22921/2/2B contain an ultra-low r
ON
P-channel•Low Threshold Control Input Enable the use of
MOSFET that can operate over an input voltage1.2V/1.8V/2.5V/3.3V Logic
range of 0.9 V to 3.6 V. The switch is controlled by an•Controlled Slew Rate to Avoid Inrush Currents
on/off input (ON), which is capable of interfacing– TPS22921 and TPS22922: 30 µS
directly with low-voltage control signals. In TPS22922and in TPS22922B, a 120- Ωon-chip load resistor is– TPS22922B: 200 µS
added for output quick discharge when switch is•ESD Performance Tested Per JESD 22
turned off. The rise time (slew rate) of the device is– 3000-V Human-Body Model
internally controlled in order to avoid inrush current:(A114-B, Class II)
TPS22921 and TPS22922 feature a 30 µs rise timewhereas TPS22922B is 200 µs.– 1000-V Charged-Device Model (C101)•Six Terminal Wafer-Chip-Scale Package
TPS22921, TPS22922, and TPS22922B feature ultralow quiescent and shutdown current and are available– 0.9 mm × 1.4 mm, 0.5 mm Pitch,
in space-saving 6-terminals wafer-chip-scale0.5 mm Height
packages (WCSP: YZP with 0.5-mm pitch and YFP– 0.8 mm × 1.2 mm, 0.4 mm Pitch,
with 0.4-mm pitch) which make it ideal for portable0.5 mm Height
electronics. The devices are characterized foroperation over the free-air temperature range of– 40 ° C to 85 ° C.
TERMINAL ASSIGNMENTS
CON GND
BV
IN
V
OUT
AV
IN
V
OUT
21
r
ON
AT 1.8 V SLEW RATE QUICK OUTPUT MAX OUTPUT
ENABLE(TYP) (TYP at 1.8V) DISCHARGE
(1)
CURRENT
TPS22921 33 m Ω30 µs 2 A active high
TPS22922 33 m Ω30 µs Yes 2 A active high
TPS22922B 33 m Ω200 µs Yes 2 A active high
(1) This feature discharges the output of the switch to ground through a 120- Ωresistor, preventing theoutput from floating.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains
Copyright © 2008, Texas Instruments IncorporatedPRODUCTION DATA information current as of publication date.Products conform to specifications per the terms of TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.
ON
OFF
C = 1 F
IN µ
GND
VIN
VBATT
CL
GND
RL
CL
VOUT
SMPS
(see Note A)
GND
TPS22921/22/22B
LOAD
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
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ORDERING INFORMATION
T
A
PACKAGE
(1) (2)
ORDERABLE PART NUMBER TOP-SIDE MARKING
TPS22921YFPR _ _ _3Y_WCSP – YFP
Tape and reel TPS22922YFPR _ _ _2Z_(0.4 mm pitch)
TPS22922BYFPR PREVIEWTPS22921YZPR _ _ _3Y_– 40 ° C to 85 ° C
WCSP – YZP
Tape and reel TPS22922YZPR _ _ _2Z_(0.5 mm pitch)
TPS22922BYZPR _ _ _3Z_WCSP – YZT
Tape and reel TPS22921YZTR _ _ _3Y_(0.5 mm pitch)
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging .(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TIwebsite at www.ti.com .
TYPICAL APPLICATION
A. Switched mode power supply
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Product Folder Link(s): TPS22921 TPS22922 TPS22922B
ON
VOUT
GND
Turn-On Slew Rate
Controlled Driver
Output Discharge
(TPS22922/ Only)TPS22922B
ESD Protection
VIN
Control
Logic
A2,B2
A1,B1
C1
C2
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
APPLICATION BLOCK DIAGRAM
Figure 1. Functional Block Diagram
FUNCTION TABLE
ON V
IN
TO V
OUT
V
OUT
TO GND
(1)
L OFF ONH ON OFF
(1) TPS22922/TPS22922B only
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTIONNO. NAME
A1, B1 V
OUT
Switch outputA2, B2 V
IN
Switch inputC1 GND GroundC2 ON Switch control input, active high. Do not leave floating
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
ABSOLUTE MAXIMUM RATINGS
(1)
THERMAL IMPEDANCE RATINGS
RECOMMENDED OPERATING CONDITIONS
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
MIN MAX UNIT
V
IN
Input voltage range – 0.3 4 VV
OUT
Output voltage range V
IN
+ 0.3 VV
ON
Input voltage range – 0.3 4 VP Power dissipation at T
A
= 25 ° C 0.645 WI
MAX
Maximum continuous switch current 2 AT
A
Operating free-air temperature range – 40 85 ° CT
stg
Storage temperature range – 65 150 ° CT
lead
Maximum lead temperature (10-s soldering time) 300 ° CHuman-Body Model (HBM) 3000ESD Electrostatic discharge protection Charged Device Model (CDM) 1000 VMachine Model (MM) 300
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated under Recommended OperatingConditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
UNIT
YFP package 155θ
JA
Package thermal impedance
(1)
° C/WYZP/YZT package 123
(1) The package thermal impedance is calculated in accordance with JESD 51-7.
MIN MAX UNIT
V
IN
Input voltage range 0.9 3.6 VV
OUT
Output voltage range V
IN
V
IH
High-level input voltage, ON 0.85 3.6 VV
IL
Low-level input voltage, ON 0.4 VC
IN
Input capacitor 1
(1)
µF
(1) Refer to Application Information .
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Product Folder Link(s): TPS22921 TPS22922 TPS22922B
ELECTRICAL CHARACTERISTICS
SWITCHING CHARACTERISTICS
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
V
IN
= 0.9 V to 3.6 V, T
A
= – 40 ° C to 85 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS T
A
MIN TYP
(1)
MAX UNIT
V
IN
= 1-V Full 30 120I
IN
Quiescent current I
OUT
= 0 V
IN
= 1.8-V Full 78 235 nAV
IN
= 3.6-V Full 200 880V
IN
= 1-V Full 10 210OFF-state supply V
ON
= GND, OUT =I
IN(OFF)
V
IN
= 1.8-V Full 35 260 nAcurrent Open
V
IN
= 3.6-V Full 120 700V
IN
= 1-V Full 12 140OFF-state switchI
IN(LEAKAGE)
V
ON
= GND, V
OUT
= 0 V
IN
= 1.8-V Full 50 230 nAcurrent
V
IN
= 3.6-V Full 130 61025 ° C 14 45V
IN
= 3.6 V
Full 5025 ° C 20 55V
IN
= 2.5 V
Full 6025 ° C 33 65V
IN
= 1.8 V
Full 75r
ON
ON-state resistance I
OUT
= – 200 mA, m Ω25 ° C 67 100V
IN
= 1.2 V
Full 12025 ° C 82 150V
IN
= 1.1 V
Full 16025 ° C 116 160V
IN
= 1.0 V
Full 170Output pulldown V
IN
= 3.3 V, V
ON
= 0, I
OUT
= 30 mAr
PD
25 ° C 65 120 Ωresistance (TPS22922/TPS22922B only)ON input leakage V
ON
= 1.1 V to 3.6 VI
ON
Full 25 nAcurrent or GND
(1) Typical values are at the specified V
IN
and T
A
= 25 ° C.
V
IN
= 0.9 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 121 121 638t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 160 160 712 µsC
L
= 3 µF 188 188 799C
L
= 0.1 µF 46 40 40t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 308 279 279 µsC
L
= 3 µF 975 807 807C
L
= 0.1 µF 60 60 462t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 85 85 465 µsC
L
= 3 µF 107 107 507C
L
= 0.1 µF 119 51 51t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 969 434 434 µsC
L
= 3 µF 3174 1264 1264
(1) RL_CHIP = 120 Ω
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
SWITCHING CHARACTERISTICS
SWITCHING CHARACTERISTICS
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
V
IN
= 1.0 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 105 105 549t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 136 136 613 µsC
L
= 3 µF 157 157 683C
L
= 0.1 µF 46 28 28t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 309 186 186 µsC
L
= 3 µF 983 511 511C
L
= 0.1 µF 51 51 386t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 78 78 388 µsC
L
= 3 µF 88 88 419C
L
= 0.1 µF 121 34 34t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 986 306 306 µsC
L
= 3 µF 3300 908 908
(1) RL_CHIP = 120 Ω
V
IN
= 1.1 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 91 93 484t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 118 118 540 µsC
L
= 3 µF 137 137 599C
L
= 0.1 µF 44 21 21t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 311 144 144 µsC
L
= 3 µF 99 383 383C
L
= 0.1 µF 46 46 335t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 60 60 336 µsC
L
= 3 µF 76 76 363C
L
= 0.1 µF 122 29 29t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1000 224 224 µsC
L
= 3 µF 3300 732 732
(1) RL_CHIP = 120 Ω
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Product Folder Link(s): TPS22921 TPS22922 TPS22922B
SWITCHING CHARACTERISTICS
SWITCHING CHARACTERISTICS
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
V
IN
= 1.2 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 83 83 435t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 103 103 485 µsC
L
= 3 µF 122 122 536C
L
= 0.1 µF 44 17 17t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 312 117 117 µsC
L
= 3 µF 1000 319 319C
L
= 0.1 µF 41 41 301t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 54 54 302 µsC
L
= 3 µF 67 67 325C
L
= 0.1 µF 123 25 25t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1000 214 214 µsC
L
= 3 µF 3400 632 632
(1) RL_CHIP = 120 Ω
V
IN
= 1.8 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 54 54 282t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 67 67 314 µsC
L
= 3 µF 78 78 344C
L
= 0.1 µF 41 10 10t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 312 67 67 µsC
L
= 3 µF 1000 181 181C
L
= 0.1 µF 30 30 200t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 37 37 202 µsC
L
= 3 µF 47 47 219C
L
= 0.1 µF 121 17 17t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1000 158 158 µsC
L
= 3 µF 3450 461 461
(1) RL_CHIP = 120 Ω
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
SWITCHING CHARACTERISTICS
SWITCHING CHARACTERISTICS
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
V
IN
= 2.5 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 40 40 211t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 50 50 233 µsC
L
= 3 µF 59 59 256C
L
= 0.1 µF 41 10 10t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 316 56 56 µsC
L
= 3 µF 1000 153 153C
L
= 0.1 µF 23 23 164t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 29 29 165 µsC
L
= 3 µF 38 38 177C
L
= 0.1 µF 122 16 16t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1086 147 147 µsC
L
= 3 µF 3600 430 430
(1) RL_CHIP = 120 Ω
V
IN
= 3 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 30 30 182t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 38 38 201 µsC
L
= 3 µF 45 45 221C
L
= 0.1 µF 40 10 10t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 353 51 51 µsC
L
= 3 µF 1036 139 139C
L
= 0.1 µF 20 20 149t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 25 25 150 µsC
L
= 3 µF 33 33 161C
L
= 0.1 µF 104 15 15t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1030 143 143 µsC
L
= 3 µF 3230 419 419
(1) RL_CHIP = 120 Ω
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Product Folder Link(s): TPS22921 TPS22922 TPS22922B
SWITCHING CHARACTERISTICS
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
V
IN
= 3.6 V, T
A
= 25 ° C (unless otherwise noted)
TPS22921 TPS22922
(1)
TPS22922B
(1)PARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 µF 30 30 159t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 µF 38 38 175 µsC
L
= 3 µF 45 45 193C
L
= 0.1 µF 42 10 10t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 µF 310 51 51 µsC
L
= 3 µF 988 139 139C
L
= 0.1 µF 20 20 137t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 µF 25 25 138 µsC
L
= 3 µF 33 33 148C
L
= 0.1 µF 120 15 15t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 µF 1100 143 143 µsC
L
= 3 µF 3600 419 419
(1) RL_CHIP = 120 Ω
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
TYPICAL CHARACTERISTICS
-40.00 25.00 85.00
Temperature(C)
0.018
0.019
0.02
0.021
0.022
0.023
0.024
ON-StateResistance,r ( )
ON W
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
Input Voltage, V (V)
IN
ON-State Resistance, r ( )
ON Ω
0.7 1.2 1.7 2.2 2.7 3.2 3.7
0
50
100
150
200
250
300
350
400
450
500
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
LoadCurrent(A)
V oltage D rop (m V )
V = 1.0 V
drop
V = 1.2 V
drop
V = 1.8 V
drop
V = 2.5 V
drop
V = 3.3 V
drop
Input Voltage, V (V)
IN
Quiescent Current, I ( )
IN nA
0
25
50
75
100.
125
150
175
200
225
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
Figure 2. r
ON
vs. V
IN
Figure 3. r
ON
vs. Temperature (V
IN
= 3.3 V)
Figure 4. Voltage Drop vs Load Current Figure 5. Quiescent Current vs. V
IN(V
ON
= V
IN
)
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Product Folder Link(s): TPS22921 TPS22922 TPS22922B
Quiescent Current, I ( )
IN nA
Temperature (°C)
0
50
100
150
200
250
300
–40 25 85
Leakage Current, I (nA)
IN
0
25
50
75
100
125
150
175
200
225
250
275
–40 25 85
Temperature (°C)
Input Voltage, V (V)
IN
IIN OFF Current (nA)
0
20
40
60
80
100
120
140
160
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Figure 6. Quiescent Current vs. Temperature Figure 7. I
IN
Leakage Current vs. Temperature (V
IN
= 3.3 V)(V
IN
= 3.3 V, I
OUT
= 0 mA)
Figure 8. Leakage Current vs V
IN
Figure 9. I
IN
(OFF) vs V
IN
(V
ON
= 0 V)
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
Input Voltage, V (V)
ON
V (V)
OUT
–0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.3 0.4 0.5 0.6 0.7 0.8
—V = 3.6 V
IN
V = 3.3 V
V = 3 V
V = 2.5 V
V = 1.8 V
V = 1.5 V
V = 1.2 V
V = 1.1 V
V = 1 V
V = 0.9 V
IN
IN
IN
IN
IN
IN
IN
IN
IN
—
—
—
—
—
—
—
—
—
Quiescent Current (OFF), I (nA)
IN
Temperature (°C)
0
25
50
75
100
125
150
175
200
225
250
275
–40 25 85
TPS22921
t/)
rtf(µs
Temperature (°C)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100
tfall
trise
Temperature, T (°C)
A
t /t
ON OFF ( )µs
25.0
27.5
30.0
32.5
35.0
37.5
40.0
42.5
45.0
47.5
50.0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100
tON
TOFF
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 10. I
IN
(OFF) vs Temperature (V
IN
= 3.3 V) Figure 11. ON-Input Threshold
Figure 12. t
ON
/t
OFF
vs Temperature (V
IN
= 3.3 V) Figure 13. t
rise
/t
fall
vs Temperature (V
IN
= 3.3 V)
12 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
TPS22922
t /t ( s)
rise fall m
Temperature( C)°
–40 0 25 70 85
0
5
10
15
20
25
30
35
40
t (TPS22922)
fall
trise
Temperature, T (°C)
A
t /t
ON OFF ()
µs
0
5
10
15
20
25
30
35
40
45
50
–40 0 25 70 85
tON
t (TPS22922)
OFF
TPS22922B
t/)
rtf(µs
Temperature (°C)
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
trise
tfall
Temperature, T (°C)
A
t /t
ON OFF ( )µs
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100
0
20
40
60
80
100
120
140
160
180
200
tON
TOFF
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Figure 14. t
ON
/t
OFF
vs Temperature (V
IN
= 3.3 V) Figure 15. t
rise
/t
fall
vs Temperature (V
IN
= 3.3 V)
Figure 16. t
ON
/t
OFF
vs Temperature (V
IN
= 3.3 V) Figure 17. t
rise
/t
fall
vs Temperature (V
IN
= 3.3 V)
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
TPS22921 and TPS22922
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–0.4
0.0
–0.6
–0.2
–0.8
–1.0
0.03
0.02
0.01
0.00
–0.01
R = 500
V = 3.3 V
C = 1 F
L
IN
L
W
µ
t = 40
ON µs
I = 6.6 mA
OUT
ON = 1.8 V
ON Input Voltage (V)
Output Current (A)
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–0.4
0.0
–0.6
–0.2
–0.8
–1.0
0.03
0.02
0.01
0.00
–0.01
R = 500
V = 3.3 V
C = 3 F
L
IN
L
W
µ
I = 6.6 mA
OUT
ON = 1.8 V
t = 40
ON µs
ON Input Voltage (V)
Output Current (A)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R = 500
V = 1 V
C = 1 F
L
IN
L
W
µ
I = 2 mA
OUT
ON = 0.85 V
t = 145 µs
ON
ON Input Voltage (V)
Output Current (A)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R =500
V =1V
C =0.1 F
L
IN
L
W
µ
I =2mA
OUT
ON=0.85V
t =100 s
ON µ
ONInputVoltage(V)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R = 500
V = 1 V
C = 3 F
L
IN
L
W
µ
I = 2 mA
OUT
ON = 0.85 V
t = 160 µs
ON
ON Input Voltage (V)
Output Current (A)
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 18. t
ON
Response Figure 19. t
ON
Response
Figure 20. t
ON
Response Figure 21. t
ON
Response
Figure 22. t
ON
Response
14 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
TPS22921
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–200 0 20 40 60 80 100 120 140 160 180
1.38
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.10
–0.22
0.014
0.013
0.012
0.011
0.010
0.009
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0.000
–0.001
–0.002
R = 500
V = 3.3 V
C = 0.1 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–2.0 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
3.50
3.40
3.20
3.00
2.80
2.60
2.40
2.20
2.00
1.80
0.80
1.60
0.60
1.40
0.40
1.20
0.20
1.00
0.00
–0.40
–0.20
–0.50
0.35
0.34
0.32
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.06
0.14
0.04
0.12
0.02
0.10
0.00
0.08
–0.04
–0.02
–0.05
R = 10
V = 3.3 V
C = 0.1 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–3.5 –2.0–3.0 –1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 6.5
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.012
0.011
0.010
0.009
0.008
0.007
0.006
0.002
0.005
0.001
0.004
0.000
–0.001
0.003
–0.003
–0.002
–0.004
R = 500
V = 3.3 V
C = 3.3 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–20 0 20 40 60 80 100 120 140 160 180
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.600
0.550
0.500
0.450
0.400
0.350
0.300
0.100
0.050
0.250
0.200
0.000
–0.050
0.150
–0.150
–0.100
–0.200
R = 10
V = 3.3 V
C = 3.3 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–20 0 20 40 60 80 100 120 140 160 180
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.006
0.005
0.004
0.003
0.001
0.002
0.000
–0.001
–0.002
R = 500
V = 1 V
C = 0.1 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–2.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.12
0.11
0.10
0.09
0.08
0.07
0.06
0.02
0.05
0.01
0.04
0.00
–0.01
0.03
–0.03
–0.02
–0.04
R = 10
V = 1 V
C = 0.1 F
L
IN
L
W
µ
IOUT
VON
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Figure 23. t
OFF
Response Figure 24. t
OFF
Response
Figure 25. t
OFF
Response Figure 26. t
OFF
Response
Figure 27. t
OFF
Response Figure 28. t
OFF
Response
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–500 0 500 1000 1500 2000 2500 3000 3500 4000 4500
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.006
0.005
0.004
0.003
0.001
0.002
0.000
–0.001
–0.002
R = 500
V = 1 V
C = 3.3 F
L
IN
L
W
µ
IOUT
VON
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–20 0.0 20 40 60 80 100 120 140 160 180
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
–0.30
–0.20
–0.10
–0.40
0.12
0.11
0.10
0.09
0.08
0.07
0.06
0.02
0.05
0.01
0.04
0.00
–0.01
0.03
–0.03
–0.02
–0.04
R = 10
V = 1 V
C = 3.3 F
L
IN
L
W
µ
IOUT
VON
TPS22922
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–0.4
0.0
–0.6
–0.2
–0.8
–1.0
0.03
0.02
ON Input Voltage (V)
Output Current (A)
0.01
0.00
–0.01
R = 500
V = 3.3 V
C = 0.1 F
L
IN
L
W
µ
ON = 1.8 V
I = 6.6 mA
OUT
t = 8 µs
OFF
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–0.4
0.0
–0.6
–0.2
–0.8
–1.0
0.03
0.02
0.01
0.00
–0.01
R = 500
V = 3.3 V
C = 1 F
L
IN
L
W
µ
I = 6.6 mA
OUT
ON = 1.8 V
t = 50 µs
OFF
ON Input Voltage (V)
Output Current (A)
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–0.4
0.0
–0.6
–0.2
–0.8
–1.0
0.03
0.02
0.01
0.00
–0.01
R = 500
V = 3.3 V
C = 3 F
L
IN
L
W
µ
I = 6.6 mA
OUT
ON = 1.8 V
t = 90 µs
OFF
ON Input Voltage (V)
Output Current (A)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R = 500
V = 1 V
C = 0.1 F
L
IN
L
W
µ
I = 2 mA
OUT
ON = 0.85 V
t = 20 µs
OFF
ON Input Voltage (V)
Output Current (A)
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 29. t
OFF
Response Figure 30. t
OFF
Response
Figure 31. t
OFF
Response Figure 32. t
OFF
Response
Figure 33. t
OFF
Response Figure 34. t
OFF
Response
16 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R = 500
V = 1 V
C = 1 F
L
IN
L
W
µ
I = 2 mA
OUT
ON = 0.85 V
t = 240 µs
OFF
ON Input Voltage (V)
Output Current (A)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–0.1
0.1
–0.2
0.0
–0.3
–0.4
0.01
0.00
R = 500
V = 1 V
C = 3 F
L
IN
L
W
µ
I = 2 mA
OUT
ON = 0.85 V
t = 400
OFF µs
ON Input Voltage (V)
Output Current (A)
TPS22922B
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–100 0 100 200 300 400 500 600 700
800
900
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
499.9
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.00
–50.0
–100.0
–150.0
–200.0
–250.0
–300.0
IOUT
VON
R =10
V =3.3V
C =0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–50 0 50 100 150 200 250 300 350
400
450
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
10.00
9.00
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
IOUT
VON
R =500
V =3.3V
C =0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)m
–100 0 100 200 300 400 500 600 700
800
900
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
499.9
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.00
–50.0
–100.0
–150.0
–200.0
–250.0
–300.0
IOUT
VON
R =10
V =3.3V
C =3.3 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)m
–100 0 100 200 300 400 500 600 700
800
900
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
10.00
9.00
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
IOUT
VON
R =500
V =3.3V
C =3.3 F
L
IN
L
W
µ
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Figure 35. t
OFF
Response Figure 36. t
OFF
Response
Figure 37. t
ON
Response Figure 38. t
ON
Response
Figure 39. t
ON
Response Figure 40. t
ON
Response
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 17
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–200 0 200 400 600 800 1000 1200 1400
1600
1800
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
–0.50
–1.00
–1.50
–2.00
–2.50
–3.00
IOUT
VON
R = 500
V = 1 V
C = 0.1 F
L
IN
L
W
µ
Control Input Voltage (V)
Output Current (A)
Time ( s)µ
–200 0 200 400 600 800 1000 1200 1400
1600
1800
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
249.9
220.0
200.0
180.0
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.00
–40.0
–20.0
–60.0
–80.0
–100.0
–120.0
–150.0
IOUT
VON
R = 10
V = 1 V
C = 0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–200 0 200 400 600 800 1000 1200 1400
1600
1800
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
3.50
–1.00
–1.50
–2.00
–2.50
–3.00
IOUT
VON
R =500
V =1V
C =3.3 F
L
IN
L
W
µ
5.00
4.50
4.00
3.00
2.50
2.00
1.50
1.00
0.50
0.00
–0.50
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–500 0 500 1000 1500 2000 2500 3000 3500
4000
4500
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
249.9
220.0
200.0
180.0
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.00
–40.0
–20.0
–60.0
–80.0
–100.0
–120.0
–150.0
IOUT
VON
R =10
V =1V
C =3.3 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–10 0 10 20 30 40 50 60 70
80
90
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
499.9
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.00
–50.0
–100.0
–150.0
–200.0
–250.0
–300.0
IOUT
VON
R =10
V =3.3V
C =0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–10 0 10 20 30 40 50 60 70
80
90
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
10.00
9.00
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
IOUT
VON
R =500
V =3.3V
C =0.1 F
L
IN
L
W
µ
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 41. t
ON
Response Figure 42. t
ON
Response
Figure 43. t
ON
Response Figure 44. t
ON
Response
Figure 45. t
OFF
Response Figure 46. t
OFF
Response
18 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–200 0 200 400 600 800 1000 1200 1400
1600
1800
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
10.00
9.00
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
–1.00
–2.00
–3.00
–4.00
–5.00
–6.00
IOUT
VON
R =500
V =3.3V
C =3.3 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–50 0 50 100 150 200 250 300 350
400
450
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
499.9
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.00
–50.0
–100.0
–150.0
–200.0
–250.0
–300.0
IOUT
VON
R =10
V =3.3V
C =3.3 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–10 0 10 20 30 40 50 60 70
80
90
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
–0.50
–1.00
–1.50
–2.00
–2.50
–3.00
IOUT
VON
R =500
V =1V
C =0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–10 0 10 20 30 40 50 60 70
80
90
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
249.9
220.0
200.0
180.0
160.0
140.0
120.0
100.0
80.0
40.0
60.0
20.0
0.00
–20.0
–40.0
–60.0
–80.0
–100.0
–120.0
–150.0
IOUT
VON
R =10
V =1V
C =0.1 F
L
IN
L
W
µ
ControlInputVoltage(V)
OutputCurrent(mA)
Time( s)µ
–200 0 200 400 600 800 1000 1200 1400
1600
1800
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
3.50
–1.00
–1.50
–2.00
–2.50
–3.00
IOUT
VON
R =500
V =1V
C =3.3 F
L
IN
L
W
µ
5.00
4.50
4.00
3.00
2.50
2.00
1.50
1.00
0.50
0.00
–0.50
ControlInputVoltage(V)
OutputCurrent(A)
Time( s)µ
–50 0 50 100 150 200 250 300 350
400
450
2.50
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
–0.20
–0.60
–1.00
–0.40
–0.80
–1.20
–1.40
–1.50
249.9
220.0
200.0
180.0
160.0
140.0
120.0
100.0
80.0
40.0
60.0
20.0
0.00
–20.0
–40.0
–60.0
–80.0
–100.0
–120.0
–150.0
IOUT
VON
R =10
V =1V
C =3.3 F
L
IN
L
W
µ
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
TYPICAL CHARACTERISTICS (continued)
Figure 47. t
OFF
Response Figure 48. t
OFF
Response
Figure 49. t
OFF
Response Figure 50. t
OFF
Response
Figure 51. t
OFF
Response Figure 52. t
OFF
Response
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 19
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
PARAMETER MEASURMENT INFORMATION
ON(A)
OFF TPS22921/22/22B
GND
GND
GND
RL
CL
VOUT
VIN
CIN =1 F
µ
+
–
90% 90%
VOUT
trtf
10%10%
V /2
OUT
VOUT V /2
OUT
V /2
ON
V /2
ON
VON
VON
0 V
0 V
1.8 V
VOH
VOL
tON tOFF
TEST CIRCUIT
t /t WAVEFORMS
ON OFF
TPS22921 , TPS22922 , TPS22922B
SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008 ........................................................................................................................................
www.ti.com
A. t
rise
and t
fall
of the control signal is 100 ns.
Figure 53. Test Circuit and t
ON
/t
OFF
Waveforms
20 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
APPLICATION INFORMATION
ON/OFF Control
Input Capacitor
Output Capacitor
Board Layout
TPS22921 , TPS22922 , TPS22922B
www.ti.com
........................................................................................................................................ SLVS749A – NOVEMBER 2008 – REVISED DECEMBER 2008
The ON pin controls the state of the switch. Activating ON continuously holds the switch in the on state so longas there is no fault. ON is active HI and has a low threshold making it capable of interfacing with low voltagesignals. The ON pin is compatible with standard GPIO logic threshold. It can be used with any microcontrollerwith 1.2-V, 1.8-V, 2.5-V or 3.3-V GPIOs.
To limit the voltage drop on the input supply caused by transient in-rush currents when the switch turns on into adischarged load capacitor or short-circuit, a capacitor must be placed between V
IN
and GND . A 1- µF ceramiccapacitor, C
IN
, placed close to the pins is usually sufficient. Higher values of C
IN
can be used to further reducethe voltage drop during higher current application. When switching a heavy load, it is recommended to have aninput capacitor about 10 or more times higher than the output capacitor in order to avoid any supply drop.
Due to the integral body diode in the PMOS switch, a C
IN
greater than C
L
is highly recommended. A C
L
greaterthan C
IN
can cause V
OUT
to exceed V
IN
when the system supply is removed. This could result in current flowthrough the body diode from V
OUT
to V
IN
.
For best performance, all traces should be as short as possible. To be most effective, the input and outputcapacitors should be placed close to the device to minimize the effects that parasitic trace inductances may haveon normal and short-circuit operation. Using wide traces for V
IN
, V
OUT
, and GND will help minimize the parasiticelectrical effects along with minimizing the case to ambient thermal impedance.
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Link(s): TPS22921 TPS22922 TPS22922B
PACKAGE OPTION ADDENDUM
www.ti.com 15-Aug-2012
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TPS22921YFPR ACTIVE DSBGA YFP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
TPS22921YZPR ACTIVE DSBGA YZP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
TPS22922BYFPR ACTIVE DSBGA YFP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
TPS22922BYZPR ACTIVE DSBGA YZP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
TPS22922YFPR ACTIVE DSBGA YFP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
TPS22922YZPR ACTIVE DSBGA YZP 6 3000 Green (RoHS
& no Sb/Br) SNAGCU Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
PACKAGE OPTION ADDENDUM
www.ti.com 15-Aug-2012
Addendum-Page 2
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
TPS22921YFPR DSBGA YFP 6 3000 180.0 8.4 0.89 1.29 0.62 4.0 8.0 Q1
TPS22921YZPR DSBGA YZP 6 3000 180.0 8.4 1.02 1.52 0.63 4.0 8.0 Q1
TPS22922BYFPR DSBGA YFP 6 3000 180.0 8.4 0.89 1.29 0.62 4.0 8.0 Q1
TPS22922BYZPR DSBGA YZP 6 3000 180.0 8.4 1.02 1.52 0.63 4.0 8.0 Q1
TPS22922YFPR DSBGA YFP 6 3000 180.0 8.4 0.89 1.29 0.62 4.0 8.0 Q1
TPS22922YZPR DSBGA YZP 6 3000 180.0 8.4 1.02 1.52 0.63 4.0 8.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 12-May-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
TPS22921YFPR DSBGA YFP 6 3000 210.0 185.0 35.0
TPS22921YZPR DSBGA YZP 6 3000 220.0 220.0 34.0
TPS22922BYFPR DSBGA YFP 6 3000 220.0 220.0 34.0
TPS22922BYZPR DSBGA YZP 6 3000 220.0 220.0 34.0
TPS22922YFPR DSBGA YFP 6 3000 210.0 185.0 35.0
TPS22922YZPR DSBGA YZP 6 3000 220.0 220.0 34.0
PACKAGE MATERIALS INFORMATION
www.ti.com 12-May-2012
Pack Materials-Page 2
D: Max =
E: Max =
1.418 mm, Min =
0.918 mm, Min =
1.358 mm
0.858 mm
D: Max =
E: Max =
1.418 mm, Min =
0.918 mm, Min =
1.358 mm
0.858 mm
D: Max =
E: Max =
1.418 mm, Min =
0.918 mm, Min =
1.358 mm
0.858 mm
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