ZXLD1362

Document number: DS33472 Rev. 6 - 2

2 of 25

www.diodes.com

March 2014

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A Product Line of

Diodes Incorporated

ZXLD1362

Pin Description

Name

Pin No.

Function

LX

1

Drain of NDMOS switch

GND

2

Ground (0V)

ADJ

3

Multi-function On/Off and brightness control pin:

Drive to voltage below 0.2V to turn off output current

Connect a capacitor from this pin to ground to increase soft-start time.

Soft-start time increases approximately 200µs/nF.

4

Ω with ADJ pin open circuit)

5

Input voltage (6V to 60V). Decouple to ground with 4.7µF of higher X7R ceramic capacitor close to device.

Block Diagram

Voltage

regulator

Low voltage

detector

``

L1

D1

LX

I

SENSE

V

IN

R

S

54

1

R1

0.2V

R2

R3

1.35V

R5

20k

R4

50k

D1

1.25V

ADJ

3

GND

2

C1

4.7µF

5V

V

IN

MN

GND

GND

Figure 1 Block Diagram