ST1L08 Datasheet, PDF (1/21 Pages) STMicroelectronics – 800 mA ultra low drop, high PSRR voltage regulator

ST1L08
800 mA ultra low drop, high PSRR voltage regulator
Datasheet - production data
Applications
 Consumer
 Hard disk drives, SSD
 Computer
 Battery-powered systems
 Low voltage point of load
Description
The ST1L08 provides 0.8 A of maximum current
from an input voltage in the range from 1 V to
5.5 V, with a typical dropout voltage as low as
70 mV.
Features
 Input voltage from 1 to 5.5 V
 Ultra low-dropout voltage (90 mV max. @
800 mA load)
 Low ground current (35 μA typ. @ no load)
 Output voltage tolerance: ± 2.0% @ 25 °C
 High PSRR: 80 dB @ 100 Hz, 50 dB @
1 MHz
 800 mA guaranteed output current
 Wide range of output voltages available on
request: from 0.5 V to 4 V and adjustable
 Logic-controlled electronic shutdown
 Internal current and thermal limit
 Power Good function
 Available in DFN8 2x3 mm package
 Temperature range: -40 °C to 125 °C
 Input voltage control for the ST1L08Sxx
It is stabilized with a ceramic capacitor on the
output.
The very low drop voltage, low quiescent current
and high PSRR features make it suitable for low
power battery-powered applications.
Enable logic control function puts the ST1L08 in
shutdown mode, reducing the total current
consumption.
Power Good function and input voltage control
feature the ST1L08Sxx version.
The device is equipped with current limit and
thermal protection.
Order code
Table 1: Device summary
Power Good and VIN control
Package
Output voltages
ST1L08SPU12R
Yes
1.2 V
ST1L08SPU33R
Yes
3.3 V
DFN8 (2x3 mm)
ST1L08SPUR
Yes
Adjustable
ST1L08PUR
No
Adjustable
November 2015
DocID026624 Rev 2
This is information on a product in full production.
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