IP1201PBF 查看數據表（PDF） - International Rectifier

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IP1201PBF

Dual Output Full Function 2 Phase Synchronous Buck Power Block

International Rectifier 

iP1201PbF

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.11 for

RT selection )

Free running frequency

set 20% below sync frequency

Sync Pulse Duration

tSYNC

-

200

-

ns

Sync, Hiccup High Level

Threshold Voltage

2

-

-

V

Sync, Hiccup Low Level

Threshold Voltage

VIN Quiescent Current

Thermal Shutdown

Max Duty Cycle

Enable Input Logic High

Enable Input Logic Low

VIN Undervoltage Lockout

Threshold Voltage

Output Disable Soft Start Low

Threshold Voltage

-

IIN_Leakage

-

Tempshdn

-

DMAX

90

VEN-Hi

2

VEN-Lo

-

VIN_UVLO

-

VSS_Dis

-

-

1.0

140

-

-

-

2.7

-

0.8

-

-

-

-

0.4

-

0.25

V

mA

°C

%

V

V

V

VIN = 5V, ENABLE high

fSW= 200kHz

VIN = VMIN to VMAX

VIN = VMIN to VMAX

VIN = 5V, ENABLE Pulled Low

V

SS1 / SS2 Pins Pulled Low

Note 1: Guaranteed to meet specifications from TBLK = 0°C to 90°C. Specifications outside of this temperature range are

guaranteed by design, and not production tested.

www.irf.com

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