LD39115JXX Datasheet, PDF (1/23 Pages) STMicroelectronics – 150 mA low quiescent current low noise voltage regulator

LD39115Jxx
150 mA low quiescent current
low noise voltage regulator
Features
■ Input voltage from 1.5 to 5.5 V
■ Ultra low dropout voltage (80 mV typ. at 100
mA load)
■ Very low quiescent current (20 µA typ. at no
load, 35 µA typ. at 150 mA load, 1 µA max in off
mode)
■ Very low noise (33 µV_RMS from 1 kHz to 100
kHz at V_OUT = 1.8 V)
■ Output voltage tolerance: ± 2.0 % @ 25 °C
■ 150 mA guaranteed output current
■ Wide range of output voltages available on
request: 0.8 V to 4.5 V with 100 mV step
■ Logic-controlled electronic shutdown
■ Compatible with ceramic capacitor C_OUT = 1 µF
■ Internal current and thermal limit
■ Flip-chip 4 bumps 0.8 x 0.8 mm. pitch
■ Temperature range: -40 °C to 125 °C
Applications
■ Mobile phones
■ Personal digital assistants (PDAs)
■ Cordless phones and similar battery-powered
systems
Flip-chip 4
Description
The LD39115Jxx provides 150 mA maximum
current from an input voltage ranging from 1.5 V
to 5.5 V with a typical dropout voltage of 80 mV. It
is stabilized with a ceramic capacitor. 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 65 dB at low frequencies and starts to
roll off at 10 kHz. An enable logic control function
puts the LD39115Jxx 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
LD39115JXX12
LD39115JXX15
LD39115JXX18
LD39115JXX25
LD39115JXX28
LD39115JXX30
LD39115JXX33
December 2011
Order codes
LD39115J12R
LD39115J15R
LD39115J18R
LD39115J25R
LD39115J28R
LD39115J30R
LD39115J33R
Doc ID 15527 Rev 5
Output voltages
1.2 V
1.5 V
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
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