CapFREE 150 mA, low-noise, low dropout
regulator with thermal protection
Product data
Supersedes data of 2003 Apr 30
2003 Jul 30
Philips SemiconductorsProduct data
CapFREE 150 mA, low-noise, low dropout regulator
with thermal protection
GENERAL DESCRIPTION
The CapFREE SA57000 is the first in a new family of unique low
dropout regulators. It needs no external capacitors, offers a low
output noise voltage of 30 µV
of 55 mV @ 50 mA output current. To accommodate high density
layouts, it is packaged in the small footprint 5 leaded SOT23-5 (SO5)
and a 5-bump Wafer Level 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, thermal warning, and external
logic-controlled on-off via the PWRON pin.
FEATURES
•CapFREE: No output capacitor needed, stable for all capacitive
loads, regardless of ESR
•5 leaded SOT23-5 (SO5) and Wafer Level Chip-Scale (WL-CSP5)
packages
•Low 30 µV
noise without noise bypass capacitor
RMS
•Preset output voltages to 2.5 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 3.3 V
and 3.6 V; other voltages available upon request. 2% output
voltage accuracy
•150 mA maximum output current with current limitation
, and an ultra-low dropout voltage
RMS
WL-CSP5SOT23-5
•Typical dropout voltage 55 mV @ 50 mA output current
•85 µA typical ground current
•Shut-down (standby) current < 1 µA
•Thermal-overload and short-circuit protection
•PWROK pin: both power status and thermal warning indicator
•PWRON pin offers logic-controlled shutdown
•Maximum line regulation: 0.1%/V
•Maximum load regulation: 0.02%/mA.
APPLICA TIONS
•Cordless and mobile phones
•Industrial and medical equipment
•Other battery-powered equipment.
SA57000-XX
SIMPLIFIED SYSTEM DIAGRAM
GND
V
3
PWRON
PWRON
2
1
IN
PWRON
TEMPERATURE
SENSOR
BAND
GAP
Figure 1. Simplified system diagram.
SA57000
OVER 144 °C (POWER/THERMAL SHUTDOWN)
OVER 127 °C (POWER/THERMAL WARNING)
LOW-PASS
FILTER
PWRON
PWRON
LOGIC
CONTROL
OUTPUT
AMP.
BIAS
NETWORK
SA00557
4
5
PWROK
V
OUT
CapFREE is a trademark of Philips Electronics North America Corporation.
2003 Jul 30
2
Philips SemiconductorsProduct data
TYPE NUMBER
CapFREE 150 mA, low-noise, low dropout regulator
SA57000-XX
with thermal protection
ORDERING INFORMATION
PACKAGE
NAMEDESCRIPTIONVERSION
SA57000-XXD
SOT23-5,
SO5
plastic small outline package; 5 leads (see dimensional drawing)SOT680-1–40 to +85 °C
SA57000-XXUKWL-CSP5wafer level, chip-scale package; 5 bumps (see dimensional drawing)–40 to +85 °C
NOTE:
The device has seven voltage output options, indicated by the XX
on the Type Number.
XX
VOLTAGE (Typical)
252.5 V
282.8 V
292.9 V
303.0 V
313.1 V
333.3 V
363.6 V
Marking code
Each device is marked with a four letter code. The first three letters
designate the product. The fourth, represented by an ‘x’, designates
the date tracking code.
2B2GNDGround.
3C1PWRONPower-on input. Active-HIGH. A logic LOW powers down the regulator. The shutdown quiescent current is
4C3PWROKPower OK indicator, including thermal warning. Connect a 10 kΩ resistor between PWROK and V
5A3V
OUT
Regulator input. V
OUT(nom)
+ 0.5 V to 6.5 V. No bypass capacitor required.
typically 50 nA. Connect to VIN for manual operation.
Active-LOW open-drain output indicates an out-of-regulation condition when power falls typically 6% below
VOUT(nom), or thermal warning (trips at 127 °C ± 2 °C).
Regulator output. Sources up to 150 mA. No bypass capacitors required.
OUT
.
2003 Jul 30
3
Philips SemiconductorsProduct data
CapFREE 150 mA, low-noise, low dropout regulator
SA57000-XX
with thermal protection
MAXIMUM RATINGS
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
IN
V
PWRON
V
OUT
T
amb
T
j
T
stg
PPower dissipation (Derating factor above 25 °C)T
R
th(j-a)
VIN to GND voltage–0.36.5V
PWRON to GND voltage–0.36.5V
OUT to GND voltage–0.3VIN + 0.3V
Operating ambient temperature–40+85°C
Junction temperature–+125°C
Storage temperature–65+160°C
= 25 °C–637mW
amb
Thermal resistance from junction to ambient–140°C/W
DC
DC
DC
2003 Jul 30
4
Philips SemiconductorsProduct data
2
3
4
CapFREE 150 mA, low-noise, low dropout regulator
with thermal protection
CHARACTERISTICS
VIN = V
OUT(nom)
SYMBOL
V
IN
I
LIM
I
Q
∆V
LNR
∆V
LDR
e
n
Shutdown
V
IH
V
IL
I
PWRON
I
Q(SHDN)
t
PWRON
Thermal protection (Note 2)
T
SHDN
∆T
SHDN
PWROK output (power and temperature OK) (Note 2)
NOTES:
1. Limits are production tested at T
guaranteed by design.
2. Accuracy ±2 °C over temperature range guaranteed by design and characterization.
3. The dropout voltage is defined as V
4. Time needed for V
+ 0.5 V. (Note 1.)
PARAMETERCONDITIONSMIN.TYP.MAX.UNIT
input voltageV
I
output voltage accuracy
–40 °C ≤ T
= 1 mA
OUT
T
= +25 °C–±1–%
amb
≤ +85 °C–2.0–2.0%
amb
current limit160300–mA
ground pin currentI
dropout voltage
line regulationVIN = (V
load regulationI
output voltage noisef = 10 Hz to 100 kHz, C