Connection Diagrams

10-Bump micro SMD Package

20036704

Top View

20036705

Bottom View

Ordering Information

Order Number

Package Type

NSC Package

Supplied As

LM2614ATL

10-bump Wafer Level Chip Scale

(micro SMD)

XYTT S50A

250 Tape and Reel

LM2614BTL

XYTT S50B

250 Tape and Reel

LM2614ATLX

XYTT S50A

3000 Tape and Reel

LM2614BTLX

XYTT S50B

3000 Tape and Reel

(*) XY - denotes the date code marking (2 digit) in production

(*) TT - refers to die run/lot traceability for production

(*) S - product line designator

Package markings may change over the course of production.

Pin Description

Pin Number

Pin Name

Function

A1

FB

Feedback Analog Input.

B1

EANEG

Inverting input of error amplifier

C1

EAOUT

Output of error amplifier

D1

SYNC/MODE

Synchronization Input. Use this digital input for frequency selection or modulation control.

Set:

SYNC/MODE = high for low-noise 600kHz PWM mode

SYNC/MODE = low for low-current PFM mode

SYNC/MODE = a 500kHz–1MHz external clock for synchronization in PWM mode. (See

Synchronization and Operating Modes in the Device Information section.)

D2

EN

Enable Input. Set this Schmitt trigger digital input high for normal operation. For shutdown,

set low. Set EN low during system power-up and other low supply voltage conditions.

(See Shutdown Mode in the Device Information section.)

D3

PGND

Power Ground

C3

SW

Switching Node connection to the internal PFET switch and NFET synchronous rectifier.

Connect to an inductor with a saturation current rating that exceeds the max Switch Peak

Current Limit of the LM2614.

B3

PVIN

Power Supply Voltage Input to the internal PFET switch. Connect to the input filter

capacitor.

A3

VDD

Analog Supply Input. If board layout is not optimum, an optional 0.1µF ceramic capacitor

is suggested.

A2

SGND

Analog and Control Ground

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