LD39100 Datasheet, PDF (1/27 Pages) STMicroelectronics – 1 A, low quiescent current, low-noise voltage regulator

LD39100
1 A, low quiescent current, low-noise voltage regulator
Datasheet - production data
DFN6 (3x3 mm)
Features
 Industrial & Automotive grade (AEC-Q100)
 Input voltage from 1.5 to 5.5 V
 Ultra low-dropout voltage (200 mV typ. at
1 A load)
 Very low quiescent current (20 µA typ. at no
load, 200 µA typ. at 1 A load, 1 µA max. in
off mode)
 Very low-noise with no bypass capacitor
(30 µ VRMS at VOUT = 0.8 V)
 Output voltage tolerance: ± 2.0% @ 25 °C
 1 A guaranteed output current
 Wide range of output voltages available on
request: 0.8 V to 4.5 V with 100 mV step and
adjustable from 0.8 V
 Logic-controlled electronic shutdown
 Stable with ceramic capacitors COUT = 1 µF
 Internal current and thermal limit
 DFN6 (3x3 mm) package
 Temperature range: - 40 °C to 125 °C
Applications
 Printers
 Game consoles
 Computer
 Consumer applications
 Automotive post regulation
Description
The LD39100 provides 1 A maximum current with
an input voltage range from 1.5 V to 5.5 V and a
typical dropout voltage of 200 mV. The device is
stable with ceramic capacitors on the input and
output. The ultra low drop voltage, low quiescent
current and low-noise features make it suitable
for low power battery-powered applications.
Power supply rejection is 70 dB at low frequency
and starts to roll off at 10 kHz. Enable logic
control function puts the LD39100 in shutdown
mode, allowing a total current consumption lower
than 1 µA. The device also includes short-circuit
constant current limiting and thermal protection.
LD39100 is available also in AEC-Q100 qualified
version, in the DFN6 (3x3 mm) with wettable
flank package.
June 2016
DocID15676 Rev 6
This is information on a product in full production.
1/27
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