RT9073 Datasheet, PDF (1/14 Pages) Richtek Technology Corporation – The RT9073 is a low-dropout

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RT9073
1μA I_Q, 250mA Low-Dropout Linear Regulator
General Description
The RT9073 is a low-dropout (LDO) voltage regulators with
enable function that operates from 1.2V to 5.5V. It provides
up to 250mA of output current and offers low-power
operation in miniaturized packaging.
The features of low quiescent current as low as 1μA and
almost zero disable current is ideal for powering the battery
equipment to a longer service life. The RT9073 is stable
with the ceramic output capacitor over its wide input range
from 1.2V to 5.5V and the entire range of output load
current (0mA to 250mA).
Ordering Information
RT9073/N-
Package Type
B : SOT-23-5
U5 : SC-70-5
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage
09 : 0.9V
1K : 1.05V
12 : 1.2V
15 : 1.5V
18 : 1.8V
19 : 1.9V
25 : 2.5V
27 : 2.7V
28 : 2.8V
29 : 2.9V
30 : 3.0V
33 : 3.3V
Special Request : Any Voltage
Between 0.9V and 3.3V under
specific business agreement
Pin Function
RT9073 : Without NC Pin
RT9073N : With NC Pin
Features
 1μA Ground Current at no Load
 PSRR = 75dB at 1kHz
 Adjustable Output Voltage Available by Specific
Application
 ±2% Output Accuracy
 250mA (V_IN ≥ 2.3V) Output Current with EN
 Low (0.1μA) Disable Current
 1.2V to 5.5V Operating Input Voltage
 Dropout Voltage : 0.5V at 250mA when V_OUT ≥ 3V
 Support Fixed Output Voltage 0.9V, 1.05V, 1.2V, 1.5V,
1.8V, 1.9V, 2.5V, 2.7V, 2.8V, 2.9V, 3V, 3.3V
 Stable with Ceramic or Tantalum Capacitor
 Current Limit Protection
 Over Temperature Protection
 SOT-23-5 and SC-70-5 Packages Available
Applications
 Portable, Battery Powered Equipment
 Ultra Low Power Microcontrollers
 Notebook computers
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Note :
Richtek products are :
 RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9073-02 March 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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