MP8352 – 3V to 6V INPUT, 6A, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

MP8352 Rev. 1.0

www.MonolithicPower.com

3

1/25/2010

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© 2010 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameters

Symbol Condition

Min

Typ

Max

Units

Feedback Voltage

3V

0.788

0.808 0.828

V

Feedback Current

10

nA

Switch On Resistance

45

mΩ

Switch Leakage

0

10

µA

Current Limit

(5)

8

A

Oscillator Frequency

400

600

800

KHz

Fold-back Frequency

60

150

240

KHz

Maximum Duty Cycle

85

90

%

Minimum On Time

100

ns

2.8

V

Hysteresis

200

mV

EN Input Low Voltage

0.4

V

En Input High Voltage

2.0

V

2

EN Input Current

0.1

µA

Sync Frequency Range (Low)

300

KHz

Sync Frequency Range (High)

1.5

MHz

Enable Turnoff Delay

5.0

us

Supply Current (Shutdown)

45

65

µA

Supply Current (Quiescent)

0.75

1.0

mA

Thermal Shutdown

150

°C

Gate Driver Sink Impedance

1

Ω

Gate Driver Source Impedance

4

Ω

Gate Drive Current Sense Trip Threshold

20

mV

Power Good Threshold Rising

0.69

0.74

0.79

V

Power Good Threshold Hysteresis

40

mV

PG Pin Level

PG Sink 4mA

0.4

V

Note:

5) Guaranteed by design.