2

FN6657.2

October 21, 2010

Simplified Block Diagram

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART MARKING

PACKAGE

(RoHS Compliant)

PKG. DWG. #

ISL8201MIRZ

ISL8201M

15 Ld QFN

L15.15x15

ISL8201MEVAL1Z

Evaluation Board

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. These Intersil plastic packaged products employ special material sets, molding compounds and 100% matte tin plate plus anneal (e3)

termination finish. These products do contain Pb but they are RoHS compliant by EU exemption 5 (Pb in glass of cathode ray tubes, electronic

components and fluorescent tubes). These Intersil RoHS compliant products are compatible with both SnPb and Pb-free soldering operations.

These Intersil RoHS compliant products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements

of IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for ISL8201M. For more information on MSL please see techbrief

TB363.

DRIVER

DRIVER

GATE

CONTROL

LOGIC

POR

AND

SOFT-START

LDO

+

-

PWM Controller

+

-

0.6V

0.4V

OSCILLATOR

DIS

+

-

PWM

SAMPLE

AND

HOLD

+

-

21.5µA

ISET

INHIBIT

PVCC

RFB-TI

RSET-IN

PGND

FB

COMP/EN

PVCC

PHASE

PGND

VOUT

VIN

ISET

FIGURE 1. INTERNAL BLOCK DIAGRAM

ISL8201M