ST2L01 Datasheet, PDF (1/12 Pages) STMicroelectronics – DUAL VOLTAGE REGULATOR

ST2L01
DUAL VOLTAGE REGULATOR
s V_OUT1 = +3.3V FIXED
s V_OUT2 = 1.25 TO 3.0V ADJUSTABLE
s GUARANTEED OUTPUT1 CURRENT: 1A
s GUARANTEED OUTPUT2 CURRENT: 1A
s ±2% OUTPUT TOLERANCE (AT 25°C)
s TYPICAL DROPOUT 1.1V
(I_OUT1 = I_OUT2 =1A)
s INTERNAL POWER AND THERMAL LIMIT
s STABLE WITH LOW ESR OUTPUT
CAPACITOR
s OPERATING TEMPERATURE RANGE:
0°C TO 125°C
s AVAILABLE IN PPAK AND SPAK-5L
(PowerFlex™) PACKAGE
DESCRIPTION
Specifically designed for data storage
applications, this device integrates two voltage
regulators, each one able to supply 1A. It is
assembled in PPAK and in a new surface
mounting package named SPAK (PowerFlex™) at
5 pins. The first regulator block supply 3.3V to
power the Read Channel and Memory Chips
requiring this voltage. The second one is an
Adjustable output voltage from 1.25V to 3.0V that
PPAK
SPAK-5L
(PowerFlex™)
could power several kind of different
micro-controllers.
Both outputs are current limited and
overtemperature protected.
The very good thermal performances of the
package SPAK with only 2°C/W of Thermal
Resistance Junction to Case is important to
underline.
SCHEMATIC DIAGRAM
VREF1
Thermal
Protection
VREF2
March 2002
Err-Amp
Err-Amp
Over current
Protection
Power Output
Power Output
Over current
Protection
RA
RB
GND
VOUT1
VOUT2
ADJ
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