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February 2005

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ADJUSTABLE OUTPUT VOLTAGE FROM

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INTERNAL REFERENCE VOLTAGE

ACCURACY ± 2% AT 25°C

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OUTPUT CURRENT CAPABILITY: 1A

MINIMUM

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VERY LOW QUIESCENT CURRENT: MAX

3mA OVER TEMPERATURE RANGE

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STABLE ONLY WITH LOW ESR CERAMIC

CAPACITORS

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THERMAL SHUTDOWN PROTECTION

WITH HYSTERESIS

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OVER CURRENT PROTECTION

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OPERATING JUNCTION TEMPERATURE

RANGE: FROM 0 TO 125°C

DESCRIPTION

The ST1L04 is a low drop adjustable linear

voltage regulator capable to supply up to 1A

output current.

The output voltage can be as low as 0.8V. The

quiescent

current

is

well

controlled

and

maintained below 3mA over the whole allowed

junction temperature range. The ST1L04 is stable

only with low ESR output ceramic capacitors.

Internal

protection

circuitry

includes

thermal

protection

with

hysteresis

and

over

current

limiting.

The ST1L04 is especially suitable for applications

requiring low voltage outputs from low voltage

inputs. Typical application for this product are,

notebook PCs, low voltage ASIC, VID power

supplies and low cost post regulation for 3.3V

output voltage switching regulators.

ST1L04

LOW QUIESCENT CURRENT VOLTAGE REGULATOR

Figure 1: Schematic Diagram

PPAK

Rev. 1