2011. 5. 27 1/9
SEMICONDUCTOR
TECHNICAL DATA
Revision No : 1
LOW Noise150mA CMOS High Performance LDO Regulator
The KIC3211Series Low Dropout Linear Regulator is ideally suited
for portable applications. It offers 1% initial accuracy,
extremely-low dropout voltage(220mV at 150mA, 3.0V Output Type)
and low ground current (typically 75uA). Designed specifically for handheld
and battery-powered devices, the KIC3211series provides a
TTL-logic-compatible ON/OFF control pin. When disabled,
power consumption drops nearly to zero.
The KIC3211Series also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power applications,
critical in handheld wireless devices.
The Line transient response and load transient response of the
KIC3211Series are very excellent, thus ICs are very suitable for
the power supply for hand-held communication equipment.
Applications
·Cellular phones,Smart Phones, PDA
·Battery-powered equipment
·Laptop, notebook and palmtop computers
·Consumer/personal electronics
Features
·Input voltage range 1.7V to 6.0V
·High output accuracy 1.0% accuracy
·Low dropout 220mV@150mA 3.0V, Output type
·Stability with ceramic output capacitors
·High Ripple Rejection Typ. 70dB(f=1kHz3.0V Output type)
Typ. 60dB(f=10kHz3.0V Output type)
·Low ground Current Typ.75μA
·Quiescent Current Typ. 0.1μA
·Excellent Line regulation Typ. 0.02%/V
·Built-in Fold Back Protection Circuit Typ. 50mA@Short mode
·Stability with ceramic output capacitors Cin=Cout=1.0㎌
·TTL-Logic-compatible ON/OFF control input
DIM MILLIMETERS
A
A1
B
B1
C
D
H
J
K
1.6 0.1
+
_
1.0 0.05
+
_
+
_
1.2 0.05
1.6 0.05
+
_
0.5
0.22 0.05
+
_
0.6(max)
0.125 0.05
+
_
0.3 0.05
+
_
SON1612-6
BK
B1
A
HA1
C
D
J
C
16
5
4
2
3
1VIN
3VOUT
2GND
4NC
5GND
6CE
KIC3211 Series
Analog CMOS Integrated Circuits
Mark Spec.
Out line No. No. of Mark Marking Description
1~2 Series Voltage X X Output Voltage
(ex, 33A →VOUT=3.3V)
3 Device Definition A
4~6 Lot. No. X X X Manufacture Year, Week
(ex, 924 →2009 year →24th week)
1 2 3
54 6
546
23
1
2011. 5. 27 2/9
KIC3211 Series
Revision No : 1
SECLECTION GUIDE
The output voltage, package type for the ICs can be selected at the user’s request.
The selection can be made with designating the part number as shown below;
KIC3211XXXXA←Part Number
ab
Code Contents
aDessignation of Package Type:
SN : SON1612-6
bSetting Output Voltage (VOUT) :
Stepwise setting with a step of 0.1V in the range of 1.2V to 4.0V is possible.
Line up
Item Output Voltage Marking Package Item Output Voltage Marking Package
KIC3211SN12A 1.2V 12A
SON1612-6
KIC3211SN27A 2.7V 27A
SON1612-6
KIC3211SN13A 1.3V 13A KIC3211SN28A 2.8V 28A
KIC3211SN14A 1.4V 14A KIC3211SN29A 2.9V 29A
KIC3211SN15A 1.5V 15A KIC3211SN30A 3.0V 30A
KIC3211SN16A 1.6V 16A KIC3211SN31A 3.1V 31A
KIC3211SN17A 1.7V 17A KIC3211SN32A 3.2V 32A
KIC3211SN18A 1.8V 18A KIC3211SN33A 3.3V 33A
KIC3211SN19A 1.9V 19A KIC3211SN34A 3.4V 34A
KIC3211SN20A 2.0V 20A KIC3211SN35A 3.5V 35A
KIC3211SN21A 2.1V 21A KIC3211SN36A 3.6V 36A
KIC3211SN22A 2.2V 22A KIC3211SN37A 3.7V 37A
KIC3211SN23A 2.3V 23A KIC3211SN38A 3.8V 38A
KIC3211SN24A 2.4V 24A KIC3211SN39A 3.9V 39A
KIC3211SN25A 2.5V 25A KIC3211SN40A 4.0V 40A
KIC3211SN26A 2.6V 26A
PIN DESCRIPTIONS
546
23
1
Pin No. Pin name Pin Description
1VDD Input Pin
2GND Ground Pin
3VOUT Regulator Output
4NC No connectin
5GND Ground Pin
6CE Enable/Shutdown (Input) : CMOS compatible input.
Logic high=enable, logic low=shutdown. Do not leave open.
SON1612-6 PKG
2011. 5. 27 3/9
KIC3211 Series
Revision No : 1
Absolute Maximum Ratings
CIN=1.0µF
Ceramic
COUT=1.0µF
Ceramic
VIN VIN
KIC3211XXXXA
OUT
CE GND
VOUT
Shutdown / Enable
Application Circuit
Stability with ceramic output capacitors Cin = Cout = 1.0㎌(X7R, X5R)
Note) Package Mounted on FR-4 PCB board (40㎜×40㎜×1.6㎜)
Characteristics Symbol Rating Units
Input Voltage VIN 6.0 V
Output Current IOUT 300 mA
Output Voltage VOUT 1.2 to 4.0 V
Power Dissipation (Note) PD500 mW
Operating Temperature TOPR -40 to +85 ℃
Storage Temperature TSTG -65 to +125 ℃
VIN
OUT
GND
CE
VREF PWTR
RA
RB
ON/OFF
Control
Error Amp
Fold - back Current
Limit Block
Reference
Voltage
Auto
Discharge
Block Diagram
2011. 5. 27 4/9
KIC3211 Series
Revision No : 1
Electrical Characteristics
(VEN =V
IN, Ta = 25℃)
Note 1) Dropout Voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal
value measured at 1V differential. For outputs below 2.5V, dropout voltage is the input-to-output voltage differential
with the minimum input voltage 2.6V
Note 2) Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load
current plus the ground pin current.
Symbol Parameter Conditions Min Typ Max Units
VIN Input Voltage 1.7 - 6.0 V
VOUT Output Voltage VIN = Set VOUT + 1V
1mA ≤IOUT ≤30mA x 0.990 - x 1.010 V
IOUT Output Current VIN - VOUT = 1.0V 150 - - mA
VDDropout Voltage (Note 1)
VOUT = 1.2~1.5
IOUT = 150mA
- 0.38 0.70 V
VOUT = 1.6~1.7 - 0.36 0.65 V
1.8 ≦VOUT ≦2.0 - 0.32 0.55 V
2.1 ≦VOUT ≦2.7 - 0.28 0.50 V
2.8 ≦VOUT ≦4.0 - 0.22 0.35 V
IGND Ground Pin Current (Note 2)
IOUT = 0mA - 75 95 μA
IOUT = 150mA - 100 150 μA
IQQuiescent Current VIN = Set VOUT + 1V
VEN = GND (shutdown) - 0.1 1 μA
∆VOUT /∆VIN Line Regulation IOUT = 1mA
Set VOUT + 0.5V ≤VIN ≤6.0V - 0.02 0.10 % / V
∆VOUT /∆IOUT Load Regulation VIN = Set VOUT + 1V
1mA ≤IOUT ≤150mA - 22 40 mV
RR Ripple Rejection
f = 1kHz Ripple 0.5V p-p
VIN -V
OUT = 1.0V
- 70 - dB
f = 10kHz - 60 - dB
∆VOUT /∆TOutput Voltage
Temperature Coefficient
IOUT = 30mA
-40℃≤TOPR ≤85℃-±100 -ppm / ℃
ILIM Short Current Limit VOUT = 0V - 50 - mA
VNO Output Noise Voltage CIN = 1.0㎌, COUT = 1.0㎌
BW = 10Hz ~ 100kHz - 30 - μVrms
VEN (ON)
Output Control Voltage
(ON - State) - 1.6 - - V
VEN (OFF)
Output Control Voltage
(OFF - State) - - - 0.4 V
2011. 5. 27 5/9
KIC3211 Series
Revision No : 1
OUTPUT CURRENT IOUT (mA)
1.2
0.8
1.0
1.4
0.2
0.0
0.6
0.4
0 100 200 300 400 500
OUTPUT VOLTAGE VOUT (V)
KIC3211SN12
2.5V
2.2V
3.5V
1.7V
OUTPUT VOLTAGE VOUT (V)
1.0
0.8
0.7
1.1
0.9
1.2
1.4
1.3
312 456
OUTPUT CURRENT IOUT (mA)
INPUT VOLTAGE VIN (V)
4.0
3.0
3.5
4.5
1.5
1.0
0.5
0.0
2.5
2.0
0 100 200 300 400 500
OUTPUT VOLTAGE VOUT (V)
KIC3211SN40
KIC3211SN12
5.0V
4.5V
6.0V
4.3V
OUTPUT CURRENT IOUT (mA)
1.2
0.8
1.0
1.4
0.0
0.6
0.4
0 100 200 300 400 500
OUTPUT VOLTAGE VOUT (V)
KIC3211SN28
3.8V
3.5V
4.8V
3.1V
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
OUTPUT VOLTAGE VOUT (V)
2.5
2.3
2.2
2.1
2.0
2.6
2.4
2.7
2.9
2.8
423 56
INPUT VOLTAGE VIN (V)
KIC3211SN28
TYPICAL CHARACTERISTICS
1) OUTPUT VOLTAGE vs OUTPUT CURRENT (TOPR = 25℃)
2) OUTPUT VOLTAGE vs INPUT VOLTAGE (TOPR = 25℃)
2011. 5. 27 6/9
KIC3211 Series
Revision No : 1
INPUT VOLTAGE VIN (V)
80
60
70
90
30
20
10
0
50
40
KIC3211SN12
01234 65
INPUT VOLTAGE VIN (V)
80
60
70
90
30
20
10
0
50
40
01234 6
5
KIC3211SN28
INPUT VOLTAGE VIN (V)
80
60
70
90
30
20
10
0
50
40
01234 6
5
KIC3211SN40
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
3.4
3.0
3.6
3.2
3.8
4.2
4.0
4123 56
INPUT VOLTAGE VIN (V)
KIC3211SN40
3) SUPPLY CURRENT vs INPUT VOLTAGE (TOPR = 25℃)
2011. 5. 27 7/9
KIC3211 Series
Revision No : 1
1.22
1.20
1.21
1.23
1.17
1.16
1.19
1.18
KIC3211SN12
-40 -15 10 35 60 85
2.84
2.80
2.82
2.86
2.74
2.78
2.76
KIC3211SN28
-40 -15 10 35 60 85
4.06
4.02
4.04
4.08
3.92
4.00
3.98
3.96
3.94
KIC3211SN40
-40 -15 10 35 60 85
4) OUTPUT VOLTAGE vs TEMPERATURE
2011. 5. 27 8/9
KIC3211 Series
Revision No : 1
80
60
70
90
30
20
0
10
50
40
KIC3211SN12
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
80
60
70
90
30
20
0
10
50
40
KIC3211SN12
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
80
60
70
90
30
20
0
10
50
40
KIC3211SN28
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
80
60
70
90
30
20
0
10
50
40
KIC3211SN28
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
80
60
70
90
30
20
0
10
50
40
KIC3211SN40
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
80
60
70
90
30
20
0
10
50
40
KIC3211SN40
0.1 1 10 100
IOUT = 100mA
IOUT = 30mA
IOUT = 1mA
3.8 3.8
5.0 5.0
5) RIPPLE REJECTION vs FREQUENCY(CIN = none)
2011. 5. 27 9/9
KIC3211 Series
Revision No : 1
1.24
1.22
1.23
1.25
1.19
1.21
3
1
2
4
0
1.20
KIC3211SN12
0 102030405060708090100
Input Voltage
Output Voltage
3
1
2
4
5
6
0
2.84
2.82
2.83
2.85
2.79
2.81
2.80
2.84
2.82
2.83
2.85
2.79
2.81
2.80
KIC3211SN28
0 102030405060708090100
Input Voltage
Output Voltage
1.40
1.30
1.35
1.45
1.15
1.25
150
50
100
0
150
50
100
0
1.20
KIC3211SN12
(mA)
(mA)
02468101214161820 02468101214161820
Input Voltage
Output Voltage
KIC3211SN28
Input Voltage
Output Voltage
6) INPUT LINE TRANSIENT RESPONSE(IOUT = 30mA, tr = tf = 5us, CIN / COUT = Ceramic 1.0㎌)
7) LOAD TRANSIENT RESPONSE (tr = tf = 5us, CIN / COUT = Ceramic 1.0㎌)
