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RT9070B Datasheet, PDF (1/12 Pages) Richtek Technology Corporation – Low Dropout Voltage | |||
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RT9070B
70V, Low Dropout Voltage Linear Regulator
General Description
The RT9070B is a high voltage (70V operation), low
quiescent current, low dropout linear regulator. The
device supplies 20mA output current with a maximum
dropout voltage of 230mV. Its low quiescent and
shutdown currents (23ïA operating and 3ïA shutdown)
are ideal for use in battery-powered and/or high voltage
systems. Ground current is well-controlled in all
conditions, including dropout.
The RT9070B operates with any reasonable output
capacitors including 1ïF low-ESR ceramic types. It
features excellent line and load transient responses.
Internal protection circuitry includes reverse-battery
protection, current limiting, thermal shutdown, and
reverse current protection.
The RT9070B has an adjustable output voltage (1.25V
to 60V). It is available in the SOT-23-5 package.
Applications
ï¬ Low Current, High Voltage Regulators
ï¬ Battery Powered Applications
ï¬ Telecom and Datacom Applications
ï¬ Automotive Applications
Features
ï¬ Wide Input Voltage Range: 4.5V to 70V
ï¬ Low Quiescent Current: 23ïA Operating and 3ïA
Shutdown
ï¬ Low Dropout Voltage: 180mV (typical) at 20mA
ï¬ Adjustable (1.25V to 60V) Output Voltage
ï¬ ï ï±2% Initial Output Tolerance
ï¬ Stable with 1ïF Output Capacitor
ï¬ Stable with Aluminum, Tantalum or Ceramic
Capacitors
ï¬ No Reverse-Current Protection Diode Needed
ï¬ ï70V Reverse-Battery Protection
ï¬ Internal Current Limit
ï¬ Internal Thermal Shutdown Protection
Marking Information
6A=DNN
6A= : Product Code
DNN : Date Code
Simplified Application Circuit
RT9070B
VIN
VIN
VOUT
VOUT
CIN
R1 CCOMP COUT
FB
SHDN
R2
GND
Copyright © 2016 Richtek Technology Corporation. All rights reserved.
DS9070B-00 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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