GM2574 datasheet(3/8 Pages) GAMMA

Part #	GM2574

Description	1.5A STEP DOWN VOLTAGE SWITCHING REGULATORS

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Manufacturer	GAMMA [Gamma Microelectronics Inc.]

Direct Link	http://www.gammamicro.com.tw/

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3

GM2574

1.5A STEP DOWN VOLTAGE SWITCHING

REGULATORS

Absolute Maximum Ratings (Note 1)

Rating

Value

Unit

Maximum Supply Voltage

45

V

SD Pin Input Voltage / Feed Back Pin Voltage

-0.3 + VIN + 0.3

V

Output Voltage to Ground (Steady State)

-0.3 + VIN + 0.3

V

Power Dissipation

Internally Limited

-

Thermal Resistance – Junction to Ambient (

θJA)

** 2 square inch of FR-4, double sided, 1oz. minimum copper weight, is

recommended

36

℃

/W

Storage Temperature Range

- 65 to 150

℃

Maximum Junction Temperature

+ 150

℃

Operating Temperature Range

- 40 to 125

℃

Minimum EDS Rating (Note 2)

2

kV

Lead Temperature (Soldering, 10 sec)

+ 260

℃

Block Diagram

VIN

1

2

3

5 ~ 8

4

VOUT

Regulator

With

Enable

Comparator

52KHz

Oscillator

Driver

Thermal Shutdown

&

Current Limit

SD

Reset

1.23V

Reference

R1*

R2*

Error

Amplifier

FB

Gnd

VOUT = 3.3V, R1 = 2.49K, R2 = 4.18K

VOUT = 5.0V, R1 = 2.49K, R2 = 7.57K

VOUT = ADJ, R1 = OPEN, R2 = 0Ω

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GM2574 Datasheet(PDF) 3 Page - Gamma Microelectronics Inc.

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