RT9018C

1

DS9018C-03

September 2021

www.richtek.com

©

Copyright 2021 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Pin Configuration

Maximum 3A, Ultra Low Dropout Regulator

Ordering Information

Features

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Maximum 3A Low Dropout Voltage Regulator

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High Accuracy Output Voltage

±±±±±1.5%

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Typically 210mV Dropout at 3A

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Power Good Output

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Output Voltage Pull Low Resistance when Disable

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Thermal and Over Current Protection

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RoHS Compliant and Halogen Free

Applications

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Front Side Bus VTT (1.2V/3A)

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NoteBook PC Applications

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Motherboard Applications

Marking Information

(TOP VIEW)

WDFN-10L 3x3

General Description

The RT9018C is a high performance positive voltage

regulator designed for use in applications requiring very

low input voltage and very low dropout voltage at up to 3A

(Peak). It operates with a VIN as low as 1.4V and VDD

voltage 3V with output voltage programmable as low as

0.8V. A significant feature includes ultra low dropout, which

is ideal for applications where VOUT is very close to VIN.

Additionally, there is an enable pin to further reduce power

dissipation while shutdown. The RT9018C provides

excellent regulation over variations in line, load and

temperature. It also provides a power good signal to

indicate whether the voltage level of VOUT has reached

90% of its rating value.

The RT9018C is available in SOP-8 (Exposed Pad) and

WDFN-10L 3x3 packages with 1V, 1.05V, 1.2V, 1.5V, 1.8V

and 2.5V internally preset outputs that are also adjustable

using external resistors.

SOP-8 (Exposed Pad)

PGOOD

EN

VIN

VDD

GND

ADJ

NC

VOUT

GND

2

3

4

5

6

7

8

9

VOUT

VOUT

PGOOD

ADJ

VDD

VIN

VIN

EN

VIN

VOUT

9

8

7

1

2

3

4

5

10

GND

11

Note :

Richtek products are :

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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.

RT9018C

GSPYMDNN

RT9018CGSP : Product Number

YMDNN : Date Code

RT9018CGSP

RT9018C-

Package Type

SP : SOP-8 (Exposed Pad-Option 1)

QW : WDFN-10L 3x3

Output Voltage

10 : 1V/Adj

1K : 1.05V/Adj

12 : 1.2V/Adj

15 : 1.5V/Adj

18 : 1.8V/Adj

25 : 2.5V/Adj

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)