LDK120XX Datasheet, PDF (1/25 Pages) STMicroelectronics – 200 mA low quiescent current very low noise LDO

LDK120xx
Features
■ Input voltage from 1.9 to 5.5 V
■ Very low dropout voltage (100 mV typ. at 100
mA load)
■ Low quiescent current (max. 100 µA, 1 µA in
OFF mode)
■ Very low noise
■ Output voltage tolerance: ± 2.0% @ 25 °C
■ 200 mA guaranteed output current
■ Wide range of fixed output voltages available
on request: from 0.8 V to 3.5 V with 100 mV
step
■ Adjustable version: from 0.8 V to V_IN-V_drop
■ Logic-controlled electronic shutdown
■ Compatible with ceramic capacitor C_OUT = 1 µF
■ Internal current and thermal limit
■ Available in SOT23-5L, SOT323-5L and DFN6
(1.2 x 1.3 mm) packages
■ Temperature range: -40 °C to 125 °C
Applications
■ Mobile phones
■ Personal digital assistants (PDAs)
■ Cordless phones and similar battery-powered
systems
■ Digital still cameras
200 mA low quiescent current
very low noise LDO
Datasheet − production data
SOT23-5L
DFN6 (1.2 x 1.3 mm)
SOT323-5L
Description
The LDK120xx low drop voltage regulator
provides 200 mA of maximum current from an
input supply voltage in the range of 1.9 V to 5.5 V,
with a typical dropout voltage of 100 mV.
It is stabilized with a ceramic capacitor on the
output.
The very low drop voltage, low quiescent current
and low noise features make it suitable for low
power battery-powered applications.
An enable logic control function puts the
LDK120xx in shutdown mode allowing a total
current consumption lower than 1 µA.
The device also includes a short-circuit constant
current limiting and thermal protection.
Table 1. Device summary
Part numbers
LDK120XX
LDK120XX12
LDK120XX28
LDK120XX08
LDK120XX10
LDK120XX15
LDK120XX18
LDK120XX30
LDK120XX31
LDK120XX11
LDK120XX25
LDK120XX32
LDK120XX33
LDK120XX35
January 2013
This is information on a product in full production.
Doc ID 023965 Rev 2
1/25
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