RT9074 Datasheet, PDF (1/16 Pages) Richtek Technology Corporation – The RT9074 family are high voltage

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RT9074
60V, 30μA I_Q, Low Dropout Voltage Linear Regulator
General Description
The RT9074 family are high voltage (60V operation), low
quiescent current low dropout linear regulators capable of
supplying 100mA of output current with a maximum dropout
voltage of 300mV. The low quiescent and shutdown
currents (30μA operating and 2μA shutdown) are ideal for
use in battery-powered and/or high voltage systems.
Ground current is well-controlled in all conditions, including
dropout.
The RT9074 family operates with any reasonable output
capacitors including 1μF low-ESR ceramic types and
features excellent line and load transient responses.
Internal protection circuitry includes reverse-battery
protection, current limiting, thermal shutdown, and reverse
current protection. Output voltage accuracy is ±3% over
the entire line and load range.
These devices are available in 3 fixed-output versions
(2.5V, 3.3V, 5V) as well as a version that supports an
adjustable output voltage (1.25V to 60V). All versions
come in SOP-8 and MSOP-8 packages with an exposed
pad for high power dissipation. The fixed output versions
are also available packaged in SOT-223.
Features
 Wide Input Voltage Range : 4.5V to 60V
 Low Quiescent Current : 30μA Operating and 2μA
Shutdown
 Low Dropout Voltage : 300mV maximum at
100mA
 Fixed (2.5V, 3.3V, 5V) and adjustable (1.25V to 60V)
versions
 ±3% Output Tolerance Over Line and Load
 Stable with 1μF Output Capacitor (Aluminum,
Tantalum or Ceramic)
 Inherent Reverse-Current Protection (No diode
needed)
 −60V Reverse-Battery Protection
Applications
 Low Current, High Voltage Regulators
 Battery Powered Applications
 Telecom and Datacom Applications
 Automotive Application
Typical Application Circuit
V_IN
4.5V to 60V
RT9074
V_OUT
2.5V/3.3V/5V
C_IN
0.18µF
VIN VOUT
SENSE
SHDN
C_OUT
1µF
GND
V_IN
4.5V to 60V
RT9074
C_IN
0.18µF
VIN VOUT
SENSE
SHDN
FB
GND
V_OUT
1.25V to 25V
V_IN
4.5V to 60V
RT9074
C_IN
R1 ^{COUT 0.18µF}
1µF
VIN VOUT
SENSE
SHDN
FB
R2
GND
V_OUT
1.25V to 60V
C_{COMP R1}
C_OUT
1µF
R2
RT9074-25/33/50
RT9074 (Adjustable Up to 25V Output) RT9074 (Adjustable Up to 60V Output)
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS9074-01 December 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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