Specifications

Connection Diagrams

10-Bump micro SMD Package

20036704

Top View

20036705

Bottom View

Ordering Information

Order Number Package Type

NSC Package

Marking (

)

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

LM2614