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LD39150PT25-R Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce LD39150PT25-R
Description  Ultra low drop BiCMOS voltage regulator
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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January 2009
Rev 2
1/19
19
LD39150xx
Ultra low drop BiCMOS voltage regulator
Features
1.5 A guaranteed output current
Ultra low dropout voltage (200 mV typ. @ 1.5 A
load, 40 mV typ. @ 300 mA load)
Very low quiescent current (1 mA typ. @ 1.5 A
load, 1 µA max @ 25 °C in off mode)
Logic-controlled electronic shutdown
Current and thermal internal limit
± 1.5 % output voltage tolerance @ 25 °C
Fixed and ADJ output voltages: 1.22 V, 1.8 V,
2.5 V, 3.3 V, ADJ. (see Table 1)
Temperature range: -40 to 125 °C
Fast dynamic response to line and load
changes
Stable with ceramic capacitor (see Section 7.1,
Section 7.2 and Section 7.3)
Available in PPAK, DPAK and DFN6 (3x3 mm)
Typical application
Microprocessor power supply
DSPs power supply
Post regulators for switching suppliers
High efficiency linear regulator
Description
The LD39150xx is a fast ultra low drop linear
regulator which operates from 2.5 V to 6 V input
supply.
A wide range of output options are available. The
low drop voltage, low noise, and ultra low
quiescent current make it suitable for low voltage
microprocessor and memory applications. The
device is developed on a BiCMOS process which
allows low quiescent current operation
independently of output load current.
DFN6 (3x3 mm)
PPAK
DPAK
Table 1.
Device summary
Part numbers
Order codes
Output voltages
DPAK (T&R)
PPAK (T&R)
DFN (1)
LD39150XX12
LD39150DT12-R
LD39150PU12R
1.22 V
LD39150XX18
LD39150DT18-R
LD39150PT18-R
LD39150PU18R
1.8 V
LD39150XX25
LD39150DT25-R
LD39150PT25-R
LD39150PU25R
2.5 V
LD39150XX33
LD39150DT33-R
LD39150PT33-R
LD39150PU33R
3.3 V
LD39150XX
LD39150PT-R
LD39150PU-R
ADJ from 1.22 to 5.0 V
1.
Available on request.
www.st.com


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