RT9078

®

DS9078-08 June 2017

www.richtek.com

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©

Copyright 2017 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

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μμμμμA I

Applications

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Portable, Battery Powered Equipment

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Ultra Low Power Microcontrollers

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Notebook Computers

General Description

The RT9078 is a low-dropout (LDO) voltage regulators with

enable function that operates from 1.2V to 5.5V. It provides

up to 300mA of output current and offers low-power

operation in miniaturized packaging.

The features of low quiescent current as low as 2

μA 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).

Features

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μμμμμA Ground Current at no Load

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PSRR = 75dB at 1kHz

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Adjustable Output Voltage Available by Specific

Application

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±±±±±2% Output Accuracy

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≥≥≥≥≥ 1.7V) Output Current with EN

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Low (0.1

μμμμμA) Disable Current

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1.2V to 5.5V Operating Input Voltage

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≥≥≥≥≥ 3V

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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,

3V, 3.1V, 3.3V

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Stable with Ceramic or Tantalum Capacitor

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Current Limit Protection

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Over Temperature Protection

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TSOT-23-5 and ZQFN-4L 1x1 (ZDFN-4L 1x1) Packages

Available

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

Ordering Information

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.

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Suitable for use in SnPb or Pb-free soldering processes.

Package Type

J5 : TSOT-23-5

QZ : ZQFN-4L 1x1 (Z-Type)

(ZDFN-4L 1x1)

RT9078/N-

Lead Plating System

G : Green (Halogen Free and Pb Free)

Output Voltage

08 : 0.8V

:

33 : 3.3V

1B : 1.25V

1H : 1.85V

2H : 2.85V

1K : 1.05V

Special Request : Any voltage between

0.8V and 3.3V under specific business

agreement

Pin Function

RT9078 : Without SNS Pin

RT9078N : With SNS Pin

Pin 1 Orientation

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(2) : Quadrant 2, Follow EIA-481-D