SA57017-XX
CapFREE 150 mA, low-noise,
low-dropout regulator with thermal
protection
Product data
Supersedes data of 2003 Aug 13 2003 Aug 27
INTEGRATED CIRCUITS
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout regulator
with thermal protection
2
2003 Aug 27 853-2429 30264
GENERAL DESCRIPTION
The CapFREE SA57017 is one of a family of unique low dropout
regulators. It needs no external capacitors, offers a low output noise
voltage of 25 µV rms, and an ultra-low dropout voltage of 50 mV
max. @ 50 mA output current. Reverse battery current is extremely
low, 0.5 µA typical.
To accommodate high density layouts, it is packaged in the small
footprint 5 leaded SOT23-5 (SO5) and a 5-bump Chip-Scale
package (WL-CSP5). It is ideal for all portable and cellular phone
applications.
Additional features include power and thermal shutdown, output
current limitation, power OK status via the PWROK pin, thermal
warning, and external logic-controlled on-off via the PWRON pin,
and reverse battery protection.
WL-CSP5SO5 (SOT23)
FEATURES
•CapFREE: No output capacitor needed, stable for all capacitive
loads, regardless of ESR.
•5 leaded (SO5) SOT23-5 and W afer level Chip-Scale (WL-CSP5)
packages
•Low 25 µV rms noise without noise bypass capacitor.
•Preset output voltages to 1.25, 1.8, 2.4 2.6, 2.8, 3.0, and 3.3V
other voltages available upon request.
•1% output voltage accuracy.
•150 mA Maximum Output Current with current limitation.
•Typical dropout voltage 50 mV max. @ 50 mA output current
•85 µA typical ground current
•Shutdown (standby) current <1 µA
•Thermal-overload and short-circuit protection
•PWROK pin - both power status and thermal warning indicator.
•Reverse Battery Protection
•Max line regulation 0.15%/V
•Max load regulation 0.015%/mA
APPLICATIONS
•Cordless and mobile phones
•Industrial and medical equipment
•Other battery-powered equipment
SIMPLIFIED DEVICE DIAGRAM
A3
SA57017-XX
SL02029
A1
C3
C1
B2
DC
1.6 V to 4.6 V
Preset output voltages:
1.25 V to 3.3 V
VOUT
OFF
ON
(5) (4)
(3)
(2)
(1) PWRON
ROK
RLoad
PWROK
GND
VIN
Top view (Wafer-level CSP pin assignments using JEDEC standard matrix)
(SOT23-5 package pin assignments in parentheses)
Figure 1. Simplified device diagram.
CapFREE is a trademark of Philips Electronics North America Corporation.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE TEMPERATURE
TYPE
NUMBER
NAME DESCRIPTION RANGE
SA57017-XXD SO5 plastic small outline package; 5 leads; body width 1.5 mm –40 to +85 °C
SA57017-XXUK WL-CSP5 wafer-level, chip-scale 5 bump package, surface mount –40 to +85 °C
NOTE:
The device has seven (7) voltage output options, indicated by the
XX on the Type Number.
XX VOLTAGE (Typical)
12 1.25 V
16 1.6 V
18 1.8 V
20 2.0 V
22 2.2 V
24 2.4 V
26 2.6 V
28 2.8 V
30 3.0 V
33 3.3 V
Part marking: Each device is marked with a four letter code. The first
three letters designate the product. The fourth, represented by an
‘x’, designates date tracking code.
Part Marking
SA57017-12D, UK A C B X
SA57017-16D, UK A B V X
SA57017-18D, UK A B U X
SA57017-20D, UK A B T X
SA57017-22D, UK A B S X
SA57017-24D, UK A B R X
SA57017-26D, UK A C D X
SA57017-28D, UK A C E X
SA57017-30D, UK A C F X
SA57017-33D, UK A C G X
PIN CONFIGURATION
A3
SA57017-XX
SL02030
A1
C3
C1
B2
VOUT
VIN GND PWRON
PWROK
Figure 2. Pin configuration, top view (balls are on the bottom)
SL02031
1
2
3
5
4
SA57017-XX
VIN
GND
PWRON
VOUT
PWROK
Figure 3. Pin configuration, top view
PIN DESCRIPTION
PIN
NO. BALL
NO. SYM-
BOL DESCRIPTION
1 A1 VIN Regulator input.
VOUT(nom)+0.5V to 4.6 V.
Minimum input voltage required
is 1.6 V. No capacitor required.
2 B2 GND Ground
3 C1 PWRON Power on input.
Active HIGH. A logic LOW
powers down the regulator. The
shutdown quiescent current is
typically 50 nA. Connect to VIN
for normal operation.
4 C3 PWROK Connect a 10 kΩ up to 100 kΩ
resistor between PWROK and
VOUT. Active LOW open-drain
output indicates an
out-of-regulation condition when
power falls typically 6% below
VOUT(NOM), or thermal warning
(trips at 133 °C ± 2 °C).
If not used, leave this pin
unconnected.
5 A3 VOUT Regulator output.
Sources up to 150 mA. No
capacitor required.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 4
MAXIMUM RATINGS
SYMBOL PARAMETER MIN. MAX. UNIT
VIN VIN to GND voltage –0.3 4.6 Vdc
VPWRON PWRON to GND voltage –0.3 4.6 Vdc
VOUT OUT to GND voltage –0.3 VIN + 0.3 Vdc
Tamb Operating ambient temperature –40 +85 °C
Tj Junction temperature – +125 °C
Tstg Storage temperature –65 +160 °C
Power dissi
p
ation (T b=25
°
C)
–
637
mW
PD
Power
dissi ation
(T
amb =
25
°C)
Power dissi
p
ation degrading factor above 25
°
C=51mW/
°
C
–
637
mW
D
Power
dissi ation
degrading
factor
above
25
°C
=
5
.
1
mW/°C
Rth(j-a) Thermal resistance from junction to ambient – 140 °C/W
NOTE:
1. Maximum Ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond
those indicated may adversely affect device reliability. Functional operation under absolute maximum-rated condition is not implied.
Functional operation should be restricted to the Recommended Operating Condition.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 5
ELECTRICAL CHARACTERISTICS
VIN = VOUT(nom) + 0.5 V, Tamb = –40 °C to +85 °C, unless otherwise noted (Note 1)
Symbol Parameter Conditions Min Typ Max Units
VIN Input voltage VOUT(nom) 4.6 V
Output Voltage Accuracy (Note 2) 1.6 V t VOUT(nom) ≤ 3.3 V %
IOUT = 1 mA to 150 mA – –
Tamb = +25 °C –1 +1
–40 °C ≤ Tamb ≤ +85 °C –3.0 1.5
1.25 V ≤ VOUT(nom) ≤ 1.6 V
IOUT = 1 mA –3.0 2.5
IOUT = 150 mA –4.0 1.5
ILIM Current Limit 160 300 500 mA
IQGround Pin Current IOUT = 1 mA to 150 mA – 250 400 µA
IRBC Reverse Battery Current 0.5 µA
Dropout Voltage (Note 2, and 6) IOUT = 50 mA – 50 mV
IOUT = 100 mA – 100
IOUT = 150 mA – 150
∆VLNR Line Regulation 1.6 V t VOUT(nom) ≤ 3.3 V %/V
Vout(nom) + 0.5 V ≤ VIN ≤ 3.6 V – 0.15
Vout(nom) + 0.5 V ≤ VIN ≤ 4.2 V – 0.25
1.25 V t VOUT(nom) ≤ 1.6 V
Vout(nom) + 0.5 V ≤ VIN ≤ 3.6 V – 0.25
Vout(nom) + 0.5 V ≤ VIN ≤ 4.2 V – 0.35
∆VLDR Load Regulation 1.6 V t VOUT(nom) ≤ 3.3 V %/ mA
IOUT = 1 mA to 150 mA – 0.015
1.25 V t VOUT(nom) ≤ 1.6 V
IOUT = 1 mA to 150 mA – 0.02
enOutput Voltage Noise f = 10 Hz to 100 kHz,
IOUT = 150 mA – 25 – µVRMS
Shutdown
VIH PWRON input Threshold (HI On) Vout(nom) ≤ VIN ≤ 4.6 V 0.7 x VIN –V
VIL
()
–0.3 x VIN
IPWRON PWRON input Bias Current VPWRON = VIN – 1 – nA
IQ(SHDN) Shutdown Supply Current VOUT = 0 V – 40 – nA
tPWRON PWRON Startup Time (Note 3) IOUT = 1 to 50 mA, Tamb =
–40 °C to +85 °C– 30 50 µs
Load transient, under–voltage
(Note 5) IOUT = 1 to 50 mA in 2 µs – –1 –4 %
Load transient, overshoot (Note 5) IOUT = 50 to 1 mA in 2 µs 2 4 %
trRecovery Time (Note 4, 5) IOUT = 1 to 50 mA in 2 µs – 2 µs
IOUT = 50 to 100 mA in 2 µs – 1 µs
IOUT = 100 to 150 mA in 2 µs – 1 µs
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 6
Symbol UnitsMaxTypMinConditionsParameter
Thermal Protection
TSHDN Thermal Shutdown Temperature – 163 – °C
∆TSHDN Thermal Shutdown Hysteresis – 10 – °C
Output (Power & Temperature OK) (Note 2)
PWROK T rip Temperature – 133 – °C
PWROK T rip Temperature
Hysteresis – 10 – °C
PWROK Trip as percentage of
VOUT(nom) (Note 5) –3 –6 –10 %
PWROK Output (when tripped) Pull–up resistor = 10 KΩ
ISINK = 0.5 mA – 0.1 0.4 V
NOTES:
1. Limits are production tested at worst case ambient temperature (85 °C)
2. The dropout voltage is defined as VIN-VOUT, where VOUT is 100 mV below the value of VOUT for VIN = VOUT +0.5 V (only applicable for
1.6 V t VOUT(NOM) ≤ 3.3 V).
3. T ime needed for VOUT to reach 95% of VOUT(nom)
4. Output settling time, to within accuracy limits, when there is a pulsed load current.
5. The PWROK has a 10 µs blanking time to allow transient responses to settle within accuracy limits.
6. Minimum input voltage is 1.6 V if selected the 1.25 V preset output voltage.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 7
TYPICAL PERFORMANCE CUR VES
SA57017-18 (1.8 volt output). VIN = VOUT(nom) + 0.5 V, COUT = CIN = 0 µF, Tamb = –40 to +85 °C, unless otherwise specified.
SL02032
Tamb, TEMPERATURE °C
V OUTPUT VOLTAGE (V)
1.768
1.770
1.772
1.774
1.776
1.778
1.780
1.782
1.784
–40 –20 0 20 40 60 80 100
OUT,
ILOAD = 150 mA
Figure 4. Output voltage versus temperature.
SL02033
Tamb, TEMPERATURE °C
V OUTPUT VOLTAGE (V)
1.780
1.782
1.784
1.786
1.788
1.790
1.792
1.794
1.796
–40 –20 0 20 40 60 80 100
OUT,
ILOAD = 1 mA
Figure 5. Output voltage versus temperature.
SL02034
Tamb, TEMPERATURE °C
V – V (mV)
60
65
70
75
80
85
90
–40 –20 0 20 40 60 80 100
IN OUT
Figure 6. Drop-out voltage versus temperature.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 8
TECHNICAL DISCUSSION
The SA57017 is a low drop-out, low-quiescent current linear
regulator designed primarily for battery-powered applications and
stabilizes with or without input/output capacitors. The device delivers
up to 150 mA and is available with preset output voltages of 1.25 V,
1.6 V, 1.8 V, 2.0 V, 2.2 V, 2.4 V, and 2.6 V, 2.8 V, 3.0 V, and 3.3 V for
both SOT 23-5 and WL-CSP packages.
The 1.25 band-gap reference is connected to the error amplifier’s
inverting input. The error amplifier compares this reference with the
feedback voltage and amplifies the difference. If the feedback
voltage is lower than the reference voltage, the pass-transistor gate
is pulled lower, which allows more current to pass to the output. The
output voltage is fed back through an internal resistor voltage divider
connected to the Vout pin.
Band-gap
The band-gap circuitry generates a temperature independent
voltage by properly adding two voltages with negative and positive
temperature coef ficient. The band-gap voltage is typically 1.25 volts
with a temperature variation of 5 mV over the temperature range
from –40 °C to 125 °C.
Low Pass Filter
Low pass filter is basically an RC filter with a low cutoff frequency.
No external capacitor is used. There is one comparator, which
turns on the bypass paths to charge or discharge the capacitor if the
output of the filter is higher or lower than the band-gap voltage by a
specified amount.
Output Amplifier
The output amplifier is a folded cascode PMOS amplifier which
controls the gate of the output transistor and sources the load
current. A portion of the output voltage is compared to the reference
voltage and a constant voltage is maintained at output. The output is
also monitored by a comparator which trips the PWROK if the output
voltage falls below the nominal output level by a specified amount
due to low battery condition or any other reason. The current limiter
circuit monitors the output current and limits the load current to a
certain value to avoid any damage due to short circuit.
Bias Circuit
The bias block provides bias currents and voltages for the other
blocks. It has a self start-up circuit and it can establish the bias
currents and voltages very fast.
Temperature Sensor
The temperature sensor block monitors the die temperature and
flags Power OK when the temperature crosses 133 °C. If the die
temperature goes beyond 165 °C typical value the output amplifier is
shut down. Both the temperatures corresponding to PWROK or
PWRON have a hysteresis of 10 °C.
Reverse Battery Protection
The reverse battery protection circuit prevents damage to the device
if the supply battery is accidentally installed backwards. This circuit
compares VIN and PWRON to ground and disconnects the device’s
internal circuits if it detects reversed polarity. Reverse supply current
is limited to 1mA when this protective circuit is active, preventing the
battery from rapidly discharging through the device. Reverse
battery current is extremely low, 0.5 mA typical.
PWROK Output
PWROK goes low when the output voltage goes out of regulation as
during drop-out, current limit or thermal shutdown. PowerOK is an
open-drain N-channel MOSFET. To obtain a logic-level output,
connect a 10 kΩ pull-up resistor from PWROK pin to VOUT pin. To
minimize current consumption, make this resistor as large as
practical. A 100 kΩ resistor works well for most applications. The
PowerOK is not active during shutdown. PWROK has a 10 µs
blanking time to allow transient responses to settle within accuracy
limits.
Current Limit
The SA57017 includes a current limiter that monitors and controls
the pass transistor’s gate voltage, limiting the output current to
300 mA typical value. For design purposes, consider the current
limit to be 160 mA minimum value. The output can be shorted to
ground for an indefinite period of time without damaging the part.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 9
SIMPLIFIED BLOCK DIAGRAM
SL02061
PWROK
REVERSE
BATTERY
PROTECTION
3
PWRON
TEMP.
SENSOR
BAND GAP
2
GND
LOW
PASS
FILTER
LOGIC
CONTROL 4
5OUT
BIAS
NETWORK
VIN 1
SA57017-XX
OUTPUT
AMP
Figure 7. Simplified block diagram.
TIMING DIAGRAM
VIN
VOUT(nom)
–6%
–8%
2% HYSTERESIS
PWROK
VOUT(nom) + 0.5 V
VOUT(nom) + VDROPOUT
LOGIC_ON LOGIC_ON LOGIC_ON
LOGIC_OFF LOGIC_OFF
SL02062
10 µs blanking time
to avoid heavy loads
transient response
Figure 8. Timing diagram.
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 10
X1
X5
X2
X3
X4
X6
X7
BUMP
DIMENSIONS (mm are the original dimensions)
UNIT X1 X2 X3 X4 X5 X6 X7
mm 1.30
1.24 0.87
0.81 0.5 0.5 0.195
0.165 0.568
0.548 0.145
0.115
SL02067
WL-CSP5: wafer level, chip-scale package; 5 bumps
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 11
SOT23-5: plastic small outline package; 5 leads; body width 1.5 mm
1.35 1.2
1.0 0.25 0.55
0.41 0.22
0.08 3.00
2.70 1.70
1.50 0.55
0.35
0.15
0.05
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 12
CSP TAPE AND REEL
SL02056
4.00
P
1.75
Ao
LOADED TAPE DIRECTION OF FEED
NOTES:
All dimensions in millimeters.
10 sprocket hole pitch cumulative tolerance ±0.20
Material: conductive polystyrene
Camber not to exceed 1.0 mm in 100 mm.
Cover tape shown for illustrative purposes only.
2.00 ±0.01
W3.50 ±0.01
TOP COVER TAPE CENTER LINES OF CAVITY
X
∅1.5 +0.1
+0.0 X
BOTTOM
COVER
TAPE
Bo
SECTION ‘X – X’
BOTTOM
COVER
TAPE
TOP COVER TAPE
T
T1
T1
DIMENSIONS (mm are the original dimensions)
UNIT Ao Bo T T1 P W
mm 1.09
0.99 1.598
1.498 0.76
0.74 0.10
(max.) 4.05
3.95 8.3
7.9
Heat seal cover tape for carrier tape width 8 mm
Type tape: clear static dissipative tape
Base material: transparent polyester
Cover tape width: 5.3 ± 0.1 mm
Cover tape length: 480 m/reel
Supplier: Advanced Integrated Materials (AIM)
Part Number: CT5–00530–0480
Philips Semiconductors Product data
SA57017-XX
CapFREE 150 mA, low-noise, low-dropout
regulator with thermal protection
2003 Aug 27 13
REVISION HISTOR Y
Rev Date Description
_3 2003 Aug 27 Product data (9397 750 11971); ECN 853-2429 30264 of 27 August 2003
Modifications:
– Adjusted part marking code table
– Adjusted voltage output options table
_2 2003 Aug 13 Product data (9397 750 11912); ECN 853-2429 30151 of 28 July 2003
_1 2003 May 29 Product data (9397 750 11567); ECN 853-2429 29965 of 29 May 2003
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys
no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent,
copyright, or mask work right infringement, unless otherwise specified.
Contact information
For additional information please visit
http://www.semiconductors.philips.com. Fax: +31 40 27 24825
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Koninklijke Philips Electronics N.V. 2003
All rights reserved. Printed in U.S.A.
Date of release: 08-03
Document order number: 9397 750 11971
Data sheet status[1]
Objective data
Preliminary data
Product data
Product
status[2] [3]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Level
I
II
III
