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EN5335QI

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

Altera Corporation 

Block Diagram

POK

PVIN

EN5335QI

ROCP

ENABLE

UVLO

Thermal Limit

Current Limit

Over Voltage

(-)

PWM

Comp

(+)

Sawtooth

Generator

power

Good

Logic

Over

Voltage

VOUT

P-Drive

N-Drive

Compensation

Network

(-)

Error

Amp

(+)

Voltage

Selector

VOUT

PGND

VSENSE

VS0

VS1

VS2

SS

Soft Start

Reference

Voltage

selector

Bandgap

Reference

EAOUT

EAIN

COMP

Figure 3. System block diagram.

Absolute Maximum Ratings

CAUTION: Absolute Maximum ratings are stress ratings only. Functional operation beyond

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

cause permanent damage to the device. Exposure to absolute maximum rated conditions for

extended periods may affect device reliability.

Maximum Electrical Ratings

Min

Max

Voltages on: VIN, VOUT

Voltages on: VSENSE

Voltages on: VS0-VS2 (Note 1)

Voltages on: ENABLE

Maximum Thermal Ratings

-0.3V

-0.3V

-0.3V

-0.3V

7.0V

VIN + 0.3V

VIN + 0.3V

VIN + 0.3V

Ambient operating range

-40°C

+85°C

Storage Temperature Range

-65°C

+150°C

Reflow Peak Body Temperature MSL3 (10 Sec)

+260°C

Note 1: VS0-VS2 pins have an internal pull-up resistor, only ground potentials should be placed on them as required.

00846

4

October 11, 2013

www.altera.com/enpirion

Rev J

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