© 2008 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN5361 • Rev. 1.0.0

2

Ordering Information

Part Number

Output

Voltage

(1)

Package

Eco Status Temperature Range

Packing

FAN5361UC10X

(2)

1.0V

FAN5361UC12X

1.2V

FAN5361UC13X

(2)

1.3V

FAN5361UC15X

(2)

1.5V

FAN5361UC18X

(2)

1.8V

FAN5361UC182X

1.82V

WLCSP-6 0.4mm Pitch

Green

–40 to +85°C

Tape and Reel

FAN5361UMP10X

(2)

1.0V

FAN5361UMP12X

(2)

1.2V

FAN5361UMP13X

(2)

1.3V

FAN5361UMP15X

(2)

1.5V

FAN5361UMP18X

(2)

1.8V

6 Lead UMLP 2 x 2mm

RoHS

–40 to +85°C

Tape and Reel

Notes:

1.

Other voltage options available on request. Contact a Fairchild representative.

2.

Preliminary release.

Pin Configuration

C2

B2

A2

C1

B1

A1

MODE

SW

FB

VIN

EN

GND

Figure 2. WLCSP, Bumps Facing Down

C1

B1

A1

C2

B2

A2

MODE

SW

FB

VIN

EN

GND

Figure 3. WLCSP, Bumps Facing Up

Figure 4. UMLP, Leads Facing Down

Pin Definitions

Pin #

WLCSP MLP

Name Description

A1

3

MODE

MODE. Logic 1 on this pin forces the IC to stay in PWM mode. A logic 0 allows the IC to automatically

switch to PFM during light loads. The regulator also synchronizes its switching frequency to four times

the frequency provided on this pin. Do not leave this pin floating.

B1

2

SW

Switching Node. Connect to output inductor.

C1

1

FB

Feedback / VOUT. Connect to output voltage.

C2

6

GND Ground. Power and IC ground. All signals are referenced to this pin.

B2

5

EN

Enable. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when >1.2V.

Do not leave this pin floating.

A2

4

VIN

Input Voltage. Connect to input power source.