RT9073A Linear Regulator Datasheet

RT9073A Datasheet, PDF, Equivalent


Part Number

RT9073A

Description

250mA Low-Dropout Linear Regulator

Manufacture

Richtek

Total Page 13 Pages
Datasheet
Download RT9073A Datasheet


RT9073A
®
RT9073A
1μA IQ, 250mA Low-Dropout Linear Regulator
General Description
Features
The RT9073A is a low-dropout (LDO) voltage regulators 1μA Ground Current at no Load
with enable function that operates from 1.2V to 5.5V. It PSRR = 75dB at 1kHz
provides up to 250mA of output current and offers low- ±2% Output Accuracy
power operation in miniaturized packaging.
250mA (VIN 2.3V) Output Current with EN
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 RT9073A 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).
Low (0.1μA) Disable Current
1.2V to 5.5V Operating Input Voltage
Dropout Voltage : 0.5V at 250mA when VOUT 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
Ordering Information
RT9073A-
Over Temperature Protection
ZQFN-4L 1x1 (ZDFN-4L 1x1), SC-82 Packages
Package Type
Available
QZ : ZQFN-4L 1x1 (Z-Type)
(ZDFN-4L 1x1)
Applications
Y : SC-82
Portable, Battery Powered Equipment
Lead Plating System
G : Green (Halogen Free and
Pb Free)
Ultra Low Power Microcontrollers
Notebook computers
Output Voltage
09 : 0.9V
1K : 1.05V
12 : 1.2V
15 : 1.5V
18 : 1.8V
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
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
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 ©2016 Richtek Technology Corporation. All rights reserved.
DS9073A-02 August 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1

RT9073A
RT9073A
Pin Configurations
VOUT 1
4 VIN
SGND
GND 2 5 3 EN
ZQFN-4L 1x1 (ZDFN-4L 1x1)
(TOP VIEW)
VIN VOUT
43
2
EN GND
SC-82 (SSOT-24)
Functional Pin Description
Pin No.
ZQFN-4L 1x1 (ZDFN-4L 1x1)
1
2
3
4
SC-82 (SSOT-24)
3
2
1
4
Pin Name
VOUT
GND
EN
VIN
Pin Function
Output of the Regulator.
Ground.
Enable Control Input.
Supply Voltage Input.
5 (Exposed Pad)
--
SGND
Substrate of Chip. Leave floating or tie to GND.
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9073A-02 August 2016


Features ® RT9073A 1μA IQ, 250mA Low-Dropout L inear Regulator General Description F eatures The RT9073A is a low-dropout ( LDO) voltage regulators  1μA Ground Current at no Load with enable functi on that operates from 1.2V to 5.5V. It  PSRR = 75dB at 1kHz provides up to 250mA of output current and offers low -  ±2% Output Accuracy power opera tion in miniaturized packaging.  25 0mA (VIN ≥ 2.3V) Output Current with EN The features of low quiescent curre nt as low as 1μA and almost zero disab le current is ideal for powering the ba ttery equipment to a longer service lif e. The RT9073A is stable with the ceram ic output capacitor over its wide input range from 1.2V to 5.5V and the entire range of output load current (0mA to 2 50mA).  Low (0.1μA) Disable Curren t  1.2V to 5.5V Operating Input Volt age  Dropout Voltage : 0.5V at 250mA when VOUT ≥ 3V  Support Fixed Out put 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  .
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