Philips SA57000-30D, SA57000-36D Datasheet
SA57000-XX
CapFREE 150 mA, low-noise, low dropout
regulator with thermal protection
Product data
Supersedes data of 2001 Jul 12
File under Integrated Circuits, Standard Analog
2001 Aug 27
INTEGRATED CIRCUITS
Philips Semiconductors Product data
SA57000-XX
CapFREE 150 mA, low-noise, low dropout regulator
with thermal protection
2
2001 Aug 27 853–2265 26991
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
RMS
, and an ultra-low dropout voltage
of 55 mV @ 50 mA output current. To accommodate high density
layouts, it is packaged in the small footprint 5 leaded SOT23-5 (SO5).
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
•Low 30 µV
RMS
noise without noise bypass capacitor
•Preset output voltages to 2.5 V , 2.8 V, 3.0 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
•Typical dropout voltage 55 mV @ 50 mA output current
•85 µA typical ground current
•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.
SIMPLIFIED SYSTEM DIAGRAM
SA00557
LOW-PASS
FILTER
OUTPUT
AMP.
LOGIC
CONTROL
BIAS
NETWORK
PWROK
V
OUT
PWRON
PWRON
TEMPERATURE
SENSOR
BAND
GAP
SA57000
3
PWRON
PWRON
PWRON
GND
V
IN
OVER 144 °C (POWER/THERMAL SHUTDOWN)
OVER 127 °C (POWER/THERMAL WARNING)
2
1
5
4
Figure 1. Simplified system diagram.
CapFREE is a trademark of Philips Electronics North America Corporation.
Philips Semiconductors Product data
SA57000-XX
CapFREE 150 mA, low-noise, low dropout regulator
with thermal protection
2001 Aug 27
3
ORDERING INFORMATION
PACKAGE
TEMPERATURE
TYPE NUMBER
NAME DESCRIPTION VERSION
RANGE
SA57000-XXD
SOT23-5,
SOT25, SO5
plastic small outline package; 5 leads (see dimensional drawing) SOT680-1 –40 to +85 °C
NOTE:
The device has five voltage output options, indicated by the XX on
the Type Number.
XX
VOLTAGE (Typical)
25 2.5 V
28 2.8 V
30 3.0 V
33 3.3 V
36 3.6 V
Part number marking
Each package is marked with a four letter code. The first three
letters designate the product. The fourth letter, represented by ‘x’, is
a date tracking code.
Part number
Marking
SA57000-25D A B K x
SA57000-28D A B L x
SA57000-30D A B M x
SA57000-33D A B N x
SA57000-36D A B P x
PIN CONFIGURATION
SA00556
1
2
34
5V
OUT
PWROKPWRON
GND
V
IN
SA57000-XX
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN SYMBOL DESCRIPTION
1 V
IN
Regulator input. V
OUT(nom)
+ 0.1 V to 5.5 V.
No bypass capacitor required.
2 GND Ground.
3 PWRON Power-on input. Active-HIGH. A logic LOW
powers down regulator. The shutdown
quiescent current is typically 50 nA.
Connect to V
IN
for manual operation.
4 PWROK Power OK indicator, including thermal
warning. Trips (goes LOW) at 127 °C (±2°),
or when power falls typically 6% below
V
OUT(nom)
.
5 V
OUT
Regulator output. Sources up to 150 mA.
No bypass capacitors required.
MAXIMUM RATINGS
SYMBOL PARAMETER MIN. MAX. UNIT
V
IN
VIN to GND voltage –0.3 5.5 V
dc
V
PWRON
PWRON to GND voltage –0.3 5.5 V
dc
V
OUT
OUT to GND voltage –0.3 VIN + 0.3 V
dc
T
amb
Operating ambient temperature –40 +85 °C
T
j
Junction temperature – +150 °C
T
stg
Storage temperature –65 +160 °C
P Power dissipation – 575 mW
R
th(j-a)
Thermal resistance from junction to ambient – 140 °C/W
Loading...