ST1L04 Datasheet, PDF (1/11 Pages) STMicroelectronics – LOW QUIESCENT CURRENT VOLTAGE REGULATOR

ST1L04
LOW QUIESCENT CURRENT VOLTAGE REGULATOR
I ADJUSTABLE OUTPUT VOLTAGE FROM
0.8V to V_I -V_d
I INTERNAL REFERENCE VOLTAGE
ACCURACY ± 2% AT 25°C
I OUTPUT CURRENT CAPABILITY: 1A
MINIMUM
I VERY LOW QUIESCENT CURRENT: MAX
3mA OVER TEMPERATURE RANGE
I MAXIMUM DROPOUT 1V (@ I_O=1A)
I STABLE ONLY WITH LOW ESR CERAMIC
CAPACITORS
I THERMAL SHUTDOWN PROTECTION
WITH HYSTERESIS
I OVER CURRENT PROTECTION
I 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
PPAK
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.
Figure 1: Schematic Diagram
February 2005
Rev. 1
1/11