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RT9172-15CG Datasheet

  • RT9172-15CG

  • 3A FIXED OUTPUT VOLTAGE LDO REGULATOR

  • 343.09KB

  • 16頁

  • ETC

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Preliminary
RT9172
3A Fixed Output Voltage LDO Regulator
General Description
The RT9172 series of low-dropout linear regulators
operate from a +2.25V to +6.0V input supply. A wide
range of preset output voltage options is available.
These low dropout linear regulators respond very
fast to step changes in load, which are suitable for
low
voltage
microprocessor
applications.
The
RT9172 uses an internal PMOS as the pass device,
which does not cause extra GND current in heavy
load and dropout condition. The shutdown mode of
low operation current makes the IC suitable for
power-saving systems. The other features include
current limiting and over temperature protection.
Features
Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.4% at 3A
0.5碌A(chǔ) Quiescent Current in Shutdown Mode
碌
Guaranteed Output Current of 3A DC
Available in TO-263 and TO-220 Packages
Output Voltage Accuracy
鹵
1.5%
Error Flag Indicates Output Status
Sense Option Improves Better Load Regulation
Extremely Low Output Capacitor Requirements
Over-temperature/Over-current Protection
Ordering Information
RT9172 -
Package type
T5 : TO-220-5
M5 : TO-263-5
T : TO-220
M : TO-263
G : SOT-223
Operating temperature range
C: Commercial standard
Output voltage
15 : 1.5V
16 : 1.6V
:
32 : 3.2V
33 : 3.3V
S: Pin out exchange
N : Pin 5 bond sense
F : Pin 5 bond flg
Applications
Microprocessor Power Supplies
GTL, GTL+, BTL, and SSTL Bus Terminators
Power Supplies for DSPs
SCSI Terminator
Post Regulators
High Efficiency Linear Regulators
Battery Chargers
Other Battery Powered Applications
Pin Configurations
Part Number
RT9172-
CT
Pin Configurations
TOP VIEW
1. VIN
2. GND (TAB)
3. VOUT
1 2 3
(Plastic TO-220)
RT9172-
CM
TOP VIEW
1. VIN
2. GND (TAB)
3. VOUT
1
2
3
(Plastic TO-263)
RT9172-
CG
1
2
3
TOP VIEW
1. VIN
2. GND (TAB)
3. VOUT
(Plastic SOT-223)
To be continued
DS9172-03 April 2002
www.richtek-ic.com.tw
1

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