XCL211 datasheet(2/16 Pages) TOREX

2 / 16 page

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XCL211/XCL212 series

CE/B

Error

Amp.

Vref with

Soft Start,

Current Feedback

Current Limit

PWM

Comparator

UVLO

UVLO Cmp

Ramp Wave

Generator

OSC

Control

Logic

Inductor

GND

PWM/PFM

Selector

PVIN

AVIN

Phase

Compensation

Thermal

Shutdoun

Synch

Buffer

Drive

Logic

■

BLOCK DIAGRAM

XCL211/XCL212 Series (USP-11B01)

* The XCL211 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.

The XCL212 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM automatic

switching” internally.

Diodes inside the circuit are an ESD protection diode and a parasitic diode.

■

PRODUCT CLASSIFICATION

●

Ordering Information

XCL211①②③④⑤⑥

Fixed PWM

XCL212①②③④⑤⑥

PWM/PFM Auto Switching

DESIGNATOR

ITEM

SYMBOL

DESCRIPTION

①

Type

Refer to Selection Guide

②③

Reference Voltage

Reference Voltage is fixed at 0.8V

④

Oscillation Frequency

2.4MHz

⑤⑥ (*1)

Package (Order Unit)

USP-11B01 (*2) (1,000pcs/Reel)

(*1) Halogen free and EU RoHS compliant.

(*2) The USP-11B01 reels are shipped in a moisture-proof packing.

●

Selection Guide

TYPE

SOFT-START

TIME

CHIP

ENABLE

CURRENT

LIMITER

THERMAL

SHUTDOWN

UVLO

CL AUTO-

DISCHARGE

Fixed

Yes

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