03409

September 12, 2012

Rev: D

EP5357LUI/EP5357HUI

©Enpirion 2012 all rights reserved, E&OE

3

www.enpirion.com

PIN

NAME

FUNCTION

6

AGND

Analog ground. This is the quiet ground for the internal control circuitry, and the ground

return for external feedback voltage divider

7, 8

VOUT

Regulated Output Voltage. Refer to application section for proper layout and decoupling.

9, 10,

11

VS2, VS1,

VS0

Output voltage select. VS2 = pin 9, VS1 = pin 10, VS0 = pin 11.

EP5357LUI: Selects one of seven preset output voltages or an external resistor divider.

EP5357HUI: Selects one of eight preset output voltages.

(Refer to section on output voltage select for more details.)

12

ENABLE

Output Enable. Enable = logic high; Disable = logic low

13

AVIN

Input power supply for the controller circuitry.

14

PVIN

Input Voltage for the MOSFET switches.

Absolute Maximum Ratings

CAUTION:

Absolute Maximum ratings are stress ratings only. Functional operation beyond the

recommended operating conditions is not implied. Stress beyond the absolute maximum ratings may

cause permanent damage to the device.

Exposure to absolute maximum rated conditions for

extended periods may affect device reliability.

PARAMETER

SYMBOL

MIN

MAX

UNITS

Input Supply Voltage

-0.3

6.0

V

-0.3

V

-0.3

2.7

V

Maximum Operating Junction Temperature

150

°C

Storage Temperature Range

-65

150

°C

Reflow Temp, 10 Sec, MSL3 JEDEC J-STD-020C

260

°C

ESD Rating (based on Human Body Mode)

2000

V

Recommended Operating Conditions

PARAMETER

SYMBOL

MIN

MAX

UNITS

Input Voltage Range

2.4

5.5

V

Operating Ambient Temperature

-40

+85

°C

Operating Junction Temperature

-40

+125

°C

Thermal Characteristics

PARAMETER

SYMBOL

TYP

UNITS

Thermal Resistance: Junction to Ambient –0 LFM (Note 1)

85

°C/W

Thermal Overload Trip Point

+155

°C

Thermal Overload Trip Point Hysteresis

25

°C

Note 1

: Based on a four layer copper board and proper thermal design per JEDEC EIJ/JESD51 standards