SC1592ISTRT Datasheet, PDF (1/19 Pages) Samtec, Inc – Low Dropout High Performance Adjustable Positive Voltage Regulator

SC1592
Low Dropout High Performance
Adjustable Positive Voltage Regulator
POWER MANAGEMENT
Description
Features
The SC1592 is a 3A low dropout high performance
linear voltage regulator, that provides a low voltage, high
current output with a minimum of external components,
utilizing dual supply configuration.
The SC1592 offers a wide input voltage range from 1.25V
to 16V and is ideal for applications that need to convert
down to 0.8V.
Additionally, the SC1592 is fully protected with an exter-
nally programmable current limit, and thermal shutdown.
Also, there is an EN input which enables or shuts down
the device.
‹ Wide input range, V = 1.25V to 16V,
IN
V = 3V to 16V
CNTL
‹ 3A Guaranteed Output Current
‹ 260mV (typ) @ 3A dropout voltage in dual supply
mode
‹ 1% Initial Accuracy
‹ Adjustable output voltage, down to 0.8V
‹ Programmable current limiting and thermal
shutdown
‹ Fast transient response
‹ Excellent line and load regulation
‹ Power SO-8 and 7-lead DDPAK
The SC1592 voltage regulator is available in 7-lead DDPAK
and SOIC-8L EDP packages.
Typical Application Circuit
Applications
‹ Low voltage logic supplies
‹ Microprocessor and chipset supplies
‹ Split plane microprocessor supplies
‹ Advanced graphics cards supplies
‹ Sound cards and auxiliary power supplies
‹ SMPS post regulator
+3.3V Vcntl
C1
1uF
+2.5V Vin
C2
10uF
CNTL
OUT
SC1592
IN
EN
GND
SENSE
ILIM
TTL
R1
100
+1.8V Vout
R2
66.5
C3
47uF(cer)
R3
V_OUT
= (1+
R2
R3
)
•
V_REF
53
V_REF = 0.8V typ.
Revision: November 21, 2011
1
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