L6932H12 Datasheet, PDF (1/13 Pages) STMicroelectronics – High performance 2A ULDO linear regulator

L6932H1.2
High performance 2A ULDO linear regulator
Features
■ 2V to 14V input voltage range
■ 200mΩ r_DS(on) max
■ 200µA quiescent current at any load
■ Excellent load and line regulation
■ Adjustable from 1.2V to 5V
■ 1% voltage regulation accuracy
■ Short circuit protection
■ Thermal shut down
■ HSOP8 package
Applications
■ Motherboards
■ Mobile PC
■ Hand-held instruments
■ PCMCIA Cards
■ Processors I/O
■ Chipset and RAM supply
Figure 1. Typical operating circuit
HSO-8
Description
The L6932 Ultra Low Drop Output linear regulator
operates from 2V to 14V and is able to support
output current up to 2A. Designed with an internal
50mΩ N-channel Mosfet, it can be used for
onboard DC-DC conversions saving in real
estate, list of components, low noise generation
and power dissipation.
L6932H1.2 is available as adjustable version from
1.2V to 5V with a voltage regulation accuracy of
1%.
The upper current limit is fixed at 2.5A to control
the current in short circuit condition within ±8%.
The current is sensed in the power mos in order
to limit the power dissipation.
The device is also provided with a thermal shut
down that limits the internal temperature at 150°C
with a histeresys of 20°C. L6932H1.2 provides the
Enable and the Power good functions.
Vin=2V to 14V
C1
Vin
2
Vout
4
EN
1
PGOOD ^R3
L6932H1.2 ⁵
FB
3
6
7
8
GND
NC1 NC2
Vout=1.2V to 5V
R1
C2
R2
Table 1. Device summary
Part number
L6932H1.2
L6932H1.2TR
May 2007
Package
HSO-8
HSO-8
Rev 2
Packaging
Tube
Tape and reel
1/13
www.st.com
13