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FIXEDOUTPUT VOLTAGE 8.5V .250mAOUTPUT CURRENT .HIGH RIPPLE REJECTION .HIGH LOAD REGULATION .HIGH LINE REGULATION .SHORT CIRCUIT PROTECTION .THERMAL SHUT DOWN WITH HYSTERESIS
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3.3V, 5V, 12V, 15V, and adjustable output versions
n Adjustable version output voltage range,
1.23V to 37V (57V for HV version) ±4% max over
line and load conditions
n Guaranteed 3A output current
n Wide input voltage range, 40V up to 60V for
HV version
n Requires only 4 external components
n 52 kHz fixed frequency internal oscillator
n TTL shutdown capability, low power standby mode
n High efficiency
n Uses readily available standard inductors
n Thermal shutdown and current limit protection
n P+ Product Enhancement tested
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Dropout voltage typically 0.5V @IO = 1A
■ Output current in excess of 1A
■ Output voltage trimmed before assembly
■ Reverse battery protection
■ Internal short circuit current limit
■ Mirror image insertion protection
■ P+ Product Enhancement tested
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Output Adjustable From 1.25 V to 125 V
When Used With an External Resistor Divider
700-mA Output Current
Full Short-Circuit, Safe-Operating-Area, and
Thermal-Shutdown Protection
0.001%/V Typical Input Voltage Regulation
0.15% Typical Output Voltage Regulation
76-dB Typical Ripple Rejection
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Very low quiescent current
n Output current in excess of 100 mA
n Input-output differential less than 0.6V
n Reverse battery protection
n 60V load dump protection
n −50V reverse transient protection
n Short circuit protection
n Internal thermal overload protection
n Mirror-image insertion protection
n Available in TO-220, TO-92, TO-263, SO-8 or 6-Bump
micro SMD packages
n Available as adjustable with TTL compatible switch
n See AN-1112 for micro SMD considerations
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ｱ20 mV (ｱ0.8%) max. initial tolerance (A grade)
■ Operating current of 20 μA to 20 mA
■ 0.6Ω dynamic impedance (A grade)
■ Low temperature coefficient
■ Low voltage reference—1.2V
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ｱ20 mV (ｱ0.8%) max. initial tolerance (A grade)
■ Operating current of 20 μA to 20 mA
■ 0.6Ω dynamic impedance (A grade)
■ Low temperature coefficient
■ Low voltage reference—2.5V
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Guaranteed 200mA Output Current at
TJ = +125°C, with Foldback Current Limiting
High-Power (1.5W) 8-Pin SO Package
Dual Mode Operation: Fixed or Adjustable
Output from 1.25V to 11V
Large Input Range (2.7V to 11.5V)
Internal 1.1Ω P-Channel Pass Transistor
Draws No Base Current
Low 220mV Dropout Voltage at 200mA
Output Current
11μA (typ) Quiescent Current
1μA (max) Shutdown Mode or 7μA (typ)
Standby Mode
Low-Battery Detection Comparator
Reverse-Current Protection
Thermal-Overload Protection