ST3L01 Datasheet, PDF (1/12 Pages) STMicroelectronics – TRIPLE VOLTAGE REGULATOR

ST3L01
TRIPLE VOLTAGE REGULATOR
s DUAL INPUT VOLTAGE (12V AND 5V)
s TRIPLE OUTPUT VOLTAGE (2.6V, 3.3V, 8V)
s 2.6V GUARANTEED I_OUT UP TO 1.2A
s 3.3V GUARANTEED I_OUT UP TO 1.0A
s 8V GUARANTEED I_OUT UP TO 200mA
s THERMAL AND SHORT CIRCUIT
PROTECTION
s GUARANTEED OPERATING
TEMPERATURE RANGE (0°C to 125°C)
DESCRIPTION
This device contains three voltage regulators, all
fixed output voltage, in one 7 pin surface mount
package. The first is a 2.6 V regulator to power the
integrated controller/µP. The second is a 3.3V
regulator to power the read channel chip, and
memory chips requiring 3.3V The last is an 8V
regulator to power the preamp chip. The bandgap
reference, the 8V ground, and the substrate are all
tied to a common ground pin, while the 2.6V and
3.3V ground is tied to a separate ground pin.This
SPAK-7L
(PowerFlex™)
grounding scheme allows for improved noise
isolation between the 8V regulator and the 2.6V
and 3.3V regulators.The 2.6V and 3.3V regulators
shall be respectively capable of 1.0A and 1.2A.
The 8V regulator shall be capable of 200mA.
It is housed in the SPAK (PowerFlex™)
SCHEMATIC DIAGRAM
March 2002
V2.6
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