ISL8014 查看數據表（PDF） - Renesas Electronics

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ISL8014

4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8014

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART

MARKING

TEMP.

RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL8014IRZ

80 14IRZ

-40 to +85

16 Ld 4x4 QFN

L16.4x4

NOTES:

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

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach

materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both

SnPb and Pb-free soldering operations). Intersil Pb-free 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 ISL8014. For more information on MSL please see

techbrief TB363.

Pin Configuration

ISL8014

(16 LD QFN)

TOP VIEW

16 15 14 13

VIN 1

VIN 2

VDD 3

SYNCH 4

12 PGND

11 PGND

10 SGND

9 SGND

5 678

Pin Descriptions

PIN NUMBER

1, 2

3

5

PIN NAME

VIN

VDD

EN

7

4

14, 15

11, 12

9, 10

8

6, 13, 16

-

PG

SYNCH

LX

PGND

SGND

VFB

NC

Exposed Pad

DESCRIPTION

Input supply voltage. Connect a 10µF ceramic capacitor to power ground.

Input supply voltage for the analog circuitry. Connect to VIN pin.

Regulator enable pin. Keep the EN voltage low in disabled state until VIN settles or is

above 2.5V. Enable the output when driven to high. Shut down the chip and discharge

output capacitor when driven to low. Do not connect directly to VIN or leave this pin

floating.

1ms timer output. At power-up or EN HI, this output is a 1ms delayed Power-Good signal

for the output voltage.

Mode Selection pin. Connect to logic high or input voltage VDD for PWM mode. Connect

to logic low or ground for PFM mode. Connect to an external function generator for

synchronization with the negative edge trigger. Do not leave this pin floating.

Switching node connection. Connect to one terminal of the inductor.

Power ground

Signal ground.

Buck regulator output feedback. Connect to the output through a resistor divider for

adjustable output voltage. For 0.8V output voltage, connect this pin to the output.

No connect.

The exposed pad must be connected to the SGND pin for proper electrical performance.

Place as much vias as possible under the pad connecting to SGND plane for optimal

thermal performance.

FN6576 Rev 4.00

November 23, 2009

Page 2 of 17

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