RT9018C

2

DS9018C-03

September 2021

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Copyright 2021 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Pin Description

Pin No.

SOP-8

(Exposed Pad)

WDFN-10L 3x3

Pin Name

Pin Function

3

7, 8, 9

VIN

Supply Input Voltage.

2

6

EN

Chip Enable (Active-High).

4

10

VDD

Supply Voltage of Control Circuitry.

1

5

PGOOD

Power Good Open Drain Output.

7

4

ADJ

Set the output voltage by the internal feedback resistors when

ADJ is grounded. If external feedback resistors is used, VOUT =

0.8V x (R1 + R2) / R2.

6

1, 2, 3

VOUT

Output Voltage.

5

--

NC

No Internal Connection.

8,

9 (Exposed Pad)

11 (Exposed Pad) GND

Ground. The exposed pad must be soldered to a large PCB and

connected to GND for maximum power dissipation.

Part Status

Part No

Status

Package Type

Lead plating System

RT9018C-XXGQW Obsolete

WDFN-10L 3x3

Green (Halogen Free and Pb Free)

RT9018C-XXGSP

Obsolete

SOP-8 (Exposed Pad)

Green (Halogen Free and Pb Free)

RT9018C-XXZQW Obsolete

WDFN-10L 3x3

ECO (Ecological Element with Halogen Free and Pb

free)

RT9018C-XXZSP

Obsolete

SOP-8 (Exposed Pad)

ECO (Ecological Element with Halogen Free and Pb

free)

The part status values are defined as follows:

Active

: Device is in production and is recommended for new designs.

Lifebuy

: The device will be discontinued, and a lifetime-buy period is in effect.

NRND

: Not recommended for new designs.

Preview

: Device has been announced but is not in production.

Obsolete

: Richtek has discontinued the production of the device.