CAT37 데이터 시트보기 (PDF) - Catalyst Semiconductor => Onsemi

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CAT37

CMOS White LED Driver Boost Converter

Catalyst Semiconductor => Onsemi 

CAT37

ORDERING INFORMATION

Part Number

Package

CAT37EKK-TE7

CAT37RD4-TE13

CAT37TDI

5-lead, thin SOT23

8-pad TDFN (3x3mm)

5-lead, thin SOT23

Lead Free

Tube

Quantity

—

120

Reel

Quantity

3000

TBD

Package

Marking Code

BF

CCEW

—

—

LM

PIN CONFIGURATION

SW 1

GND 2

FB 3

CAT37

5 VIN

4 SHDN

5-Lead SOT-23

1mm maximum height

θ

[Free Air]

Power

GND

1

VIN 2

NC 3

SHDN 4

8 SW

7 NC

6 FB

5 GND

(Top View)

TDFN Package: 3mm x 3mm

0.8mm maximum height

(RD4)

PIN DESCRIPTIONS

Pin Number

Pin Number

SOT23

TDFN

1

8

2

5

3

6

4

4

5

2

—

1

Name

SW

GND

FB

SHDN

VIN

Power

Ground

Function

Switch pin. This is the drain of the internal power

switch. For minimum EMI, minimize the trace

area connected to this pin.

Ground pin. Connect pin 2 to ground.

LED (cathode) connection pin.

Shutdown pin.

Input supply pin. This pin should be bypassed

with a capacitor to ground. A 1µF capacitor

mounted close to the pin is recommended.

Power Ground

Doc. No. 5005, Rev. R

2

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