RT9078 Datasheet, PDF (1/14 Pages) Richtek Technology Corporation – Low-Dropout Linear Regulator

®
RT9078
2μA I_Q, 300mA Low-Dropout Linear Regulator
General Description
Features
The RT9078 is a low-dropout (LDO) voltage regulators with ^{ 2μA Ground Current at no Load}
enable function that operates from 1.2V to 5.5V. It provides ^{ PSRR = 75dB at 1kHz}
up to 300mA of output current and offers low-power ^{ Adjustable Output Voltage Available by Specific}
operation in miniaturized packaging.
Application
The features of low quiescent current as low as 2μA and
almost zero disable current is ideal for powering the battery
equipment to a longer service life. The RT9078 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 300mA).
 ±2% Output Accuracy
 300mA (V_IN ≥ 1.7V) Output Current with EN
 Low (0.1μA) Disable Current
 1.2V to 5.5V Operating Input Voltage
 Dropout Voltage : 0.15V at 300mA when V_OUT ≥ 3V
 Support Fixed Output Voltage 0.8V, 1.0V, 1.05V, 1.1V,
1.2V, 1.25V, 1.3V, 1.5V, 1.8V, 1.85V, 2.5V, 2.8V, 2.85V,
Ordering Information
3V, 3.1V, 3.3V
RT9078/N-
 Stable with Ceramic or Tantalum Capacitor
Pin 1 Orientation***
(2) : Quadrant 2, Follow EIA-481-D
Package Type
J5 : TSOT-23-5
QZ : ZQFN-4L 1x1 (Z-Type)
(ZDFN-4L 1x1)
 Current Limit Protection
 Over Temperature Protection
 TSOT-23-5 and ZQFN-4L 1x1 (ZDFN-4L 1x1) Packages
Available
Applications
Lead Plating System
G : Green (Halogen Free
and
Pb
Free)

Portable, Battery Powered Equipment
Output Voltage
08 : 0.8V
 Ultra Low Power Microcontrollers
 Notebook Computers
:
33 : 3.3V
1B : 1.25V
1H : 1.85V
2H : 2.85V
1K : 1.05V
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Special Request : Any voltage between
0.8V and 3.3V under specific business
agreement
Pin Function
RT9078 : Without SNS Pin
RT9078N : With SNS Pin
Note :
***Empty means Pin1 orientation is Quadrant 1
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 ©2017 Richtek Technology Corporation. All rights reserved.
DS9078-08 June 2017
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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