EN5335QI Просмотр технического описания (PDF) - Enpirion, Inc.

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производитель

EN5335QI

3A Voltage Mode Synchronous Buck PWM DC-DC Converter with Integrated Inductor 3-Pin Programmable Output

Enpirion, Inc. 

EN5335QI

Recommended Operating Conditions

PARAMETER

Input Voltage Range

EN5335QI Operating Ambient Temperature

EN5335QI Operating Ambient Temperature

Operating Junction Temperature

SYMBOL

VIN

TA

TA

TJ

MIN

2.375

0

-40

-40

MAX

5.5

+70

+85

+125

UNITS

V

°C

°C

°C

Thermal Characteristics

PARAMETER

SYMBOL

TYP

UNITS

Thermal Shutdown

TSD

150

°C

Thermal Shutdown Hysteresis

TSDH

15

°C

Thermal Resistance: Junction to Case (0 LFM) (Note 2)

θJC

3

°C/W

Thermal Resistance: Junction to Ambient (0 LFM)

θJA

25

°C/W

Note 2: Based on a four-layer board and proper thermal design in line with JEDEC EIJ/JESD 51 Standards.

Electrical Characteristics

NOTE: VIN=5.5V over operating temperature range unless otherwise noted. Typical values are at TA =

25°C.

PARAMETER SYMBOL

TEST CONDITIONS

Operating Input

Voltage

VIN

VS2 VS1 VS0

000

001

VID Output Voltage

Settings

VOUT

010

011

100

101

110

111

Drop out voltage

Shut-Down Supply

Current

VIN - VOUT

IS

Drop out voltage at full load

ENABLE=0V

Switching Frequency

VOUT

FOSC

Over line, load and temperature

Output Voltage

Regulation

VOUT

VID Output Voltage Setting (V):

1.2, 1.25, 1.5, 1.8, 2.5, 3.3

0.8V

Maximum Continuous Output Current

Over Current Trip

Piont

IOCP

Enable Operation

Disable Threshold

VDISABLE

Max voltage to ensure the converter is

disabled

MIN

2.375

TYP

MAX UNITS

5.5

V

3.3

2.5

1.8

1.5

V

1.25

1.2

0.8

reserved

600

mV

100

μA

5

MHz

-3.0

3.0

%

-4.0

4.0

4.5

A

0.8

V

©Enpirion 2009 all rights reserved, E&OE

00846

5

9/18/2009

www.enpirion.com

Rev:C

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