IP1202 View Datasheet(PDF) - International Rectifier

Part Name

Description

Manufacturer

IP1202

Dual Output Full Function 2 Phase Synchronous Buck Power Block

International Rectifier 

iP1202

Electrical Specifications (continued)

Parameter

Frequency

Oscillator Ramp Voltage

SYNC Frequency Range

Symbol

fSW

Vramp

fSYNC

Min

170

255

340

-

480

Typ

-

-

-

1.25

-

Max

230

345

460

-

800

Units

kHz

kHz

kHz

V

kHz

Conditions

RT = 48.7kΩ

RT = 30.9kΩ

RT = 21.5kΩ

( See Fig.9 for

RT selection )

Free running frequency

set 20% below sync frequency

SYNC Pulse Duration

SYNC, HICCUP High Level

Threshold Voltage

tSYNC

-

200

-

ns

2

-

-

V

SYNC, HICCUP Low Level

Threshold Voltage

VIN Quiescent Current

Thermal Shutdown

Max Duty Cycle

ENABLE Threshold Voltage

-

IIN-LEAKAGE

-

Tempshdn

-

DMAX

85

VEN-LO

5

-

0.8

V

15

-

mA VIN = 12V, ENABLE high

140

-

°C

-

-

%

fSW= 200kHz, TBLK = 25°C

-

-

V

Measured between VIN and ENABLE

VIN Turn On Threshold Voltage

VON_th

-

4.8

-

V

Measured at start of soft start, ENABLE

pulled low, VIN ramping up

VIN Turn Off Threshold Voltage

VOFF_th

-

4.3

-

V

Measured at fall of soft start, ENABLE

pulled low, VIN ramping down

Output Disable Voltage Soft

Start Low Threshold Voltage

VSS-DIS

-

-

0.25

V

SS1 / SS2 Pins Pulled Low

Note 1: Guaranteed to meet specifications from TBLK = 0°C to 90°C. Specifications outside of this tempera-

ture range are guaranteed by design, and not production tested.

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