
Philips Semiconductors - PIP - SA57001-XX; Microminiature, low power consumption, low dropout regulator
SA57001-XX;
Microminiature, low
power
consumption, low
dropout regulator
Information as of 2003-04-23
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Block diagram
The SA57001-XX is a series of micro-miniature linear regulators providing fixed output voltages with a precision accuracy of +-2pct at output currents up to 200 mA. The regulator is designed to serve as a post regulator in microprocessor power supplies. The device
has an ON/OFF pin for output On/Off control, and a Noise pin which can be used to bypass the internal voltage reference node for enhanced noise reduction.
The SA57001 has a dropout voltage of only 0.1 V (typical) while delivering 50 mA of output current. The maximum no load quiescent current is less than 190 uA in the ON state. The device has thermal shutdown and output current limiting circuits to prevent damage
from overheating and short circuits. The SA57001 regulator series is available in the SOT23-5 package.
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No load quiescent current of 95 uA
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0.1 V typical (IO = 50 mA) dropout voltage
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70 dB typical ripple rejection
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200 mA maximum output current
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35 uVrms (typical)
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Preset output voltages of 2.0, 2.5, 2.8, 3.0, 3.1, 3.3, 3.6, 4.5, 4.8, 5.0 V available
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Output current limiting
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Thermal shutdown protection
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Output ON/OFF control.
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Cordless phones
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Portable minidiscs
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Other battery-operated equipment.
Page count
File size (kB)
Datasheet
SA57001-XX
Microminiature, low power consumption, low dropout regulator
3/20/2003
Product specification
15
133
Type
number
Package Power
dissipation(mW)
Output
voltage(V)
Operating
temp.(Cel)
Regulator
Type
Thermal
protection
Short-
circuit
protection
Part type On/off
chip
enable
Accuracy(%) Adjustable
Output
Dropout
Voltage(mV)
Line
Regulation(%/V)
Load
Regulation(%/mA)
Multiple
Output
Voltages
Output
Current
Limit(mA)
Power
Monitor
Reset
Output
Pin
VRMS
Noise(uV)
Operating
voltage(VDC)
SA57001-
20GW
150
2.0
-20~75
Linear
yes
Voltage
Regulator,
Linear
yes
2
no
100@50 mA 0.1
0.03
no
150
no
35
2.1~8
SA57001-
25GW
150
2.5
-20~75
Linear
yes
Voltage
Regulator,
Linear
yes
2
no
100@50 mA 0.1
0.03
no
150
no
35
2.1~8
file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/SA57001-50GW.html (1 of 2) [May-12-2003 11:07:39 AM]
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