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L6933H1.2TR Scheda tecnica(PDF) 1 Page - STMicroelectronics

Il numero della parte L6933H1.2TR
Spiegazioni elettronici  High performance 2A ULDO linear regulator with Soft Start
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6933H1.2TR Scheda tecnica(HTML) 1 Page - STMicroelectronics

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November 2007
Rev 3
1/12
12
L6933H1.2
High performance 2A ULDO linear regulator with Soft Start
Features
2 V to 14 V input voltage range
200 mΩ rDS(on) max
200 µA quiescent current at any load
Excellent load and line regulation
Adjustable from 1.2 V to 5 V
1 % voltage regulation accuracy
Power Good output
MLCC capacitors filter supported
Adjustable Soft Start
Short circuit protection
Thermal shut down
HSOP8 package
Applications
Motherboards, mobile PC
Hand-held instruments
PCMCIA Cards
Processors I/O
Chipset and RAM supply
Description
The L6933H1.2 ultra low drop output linear
regulator operates from 2 V to 14 V and is able to
support output current up to 2 A. Designed with
an interna
l 50 m
Ω N-channel MOSFET, it can be
used for on board DC-DC conversions saving in
real estate, list of components, low noise
generation and power dissipation. L6933H1.2 is
available as adjustable version from 1.2 V to 5 V
with a voltage regulation accuracy of 1 %.
A Soft Start function allows the device to smoothly
increase the Output Voltage at the start-up,
avoiding overshoot. Inhibit function is provided.
The upper current limit is fixed at 2.5 A 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.
HSOP8
www.st.com
Figure 1.
Typical operating circuit
Table 1. Device summary
Order codes
Package
Packaging
L6933H1.2
HSOP8
Tube
L6933H1.2TR
HSOP8
Tape and reel


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