SC4624 데이터 시트보기 (PDF) - Semtech Corporation

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SC4624

Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator

Semtech Corporation 

SC4624

POWER MANAGEMENT

Absolute Maximum Ratings

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the

Electrical Characteristics section is not implied.

Parameter

Symbol

Maximum

Units

Supply Voltage

PVIN to VCC

PVIN, VCC

-0.3 to 6

V

+/- 0.3

V

FB, COMP, ISET, SYNC/EN, FS, SS, PGOOD to AGND

-0.3 to VCC+ 0.3

V

PGND to AGND

+/- 0.3

V

PHASE Voltage to PGND

PHASE Pulse Voltage to PGND Tpulse < 50ns

Storage Temperature Range

Junction Temperature

IR Reflow Temperature

Lead Temperature (Soldering) 10 sec for SO Package Only

ESD Protection Level(1)

Note:

1) Tested in accordance to JEDEC standard JESD22-A114B.

VPHASE

VPHASE

TSTG

TJ

TP

TLEAD

VESD

-0.3 to PVIN+ 0.3

V

-3 to PVIN+ 2

V

-65 to 150

°C

150

°C

260

°C

300

°C

2

kV

Recommended Operating Conditions

The Performance is not guarantied if exceeding the specifications below.

Parameter

Symbol

Conditions

Min

Typ

Max Units

Power Supply

Input Voltage Operating Range

VIN

Ambient Temperature Range

TA

Junction Temperature

TJ

Max. Output Current

IOUTMAX

Electrical Characteristics

Unless otherwise specified, VIN= VCC=SYNC/EN=3.3V, ROSC=51.1KΩ, RISET=27.4KΩ, TJ = -40°C to 125°C

Parameter

Symbol

Conditions

2.3

5.5

V

-40

105

°C

-40

125

°C

0

4

A

Min

Typ

Max Units

Power Supply

Start Threshold Voltage, UVLO

Hysteresis Voltage, UVLO

Supply Current, Shutdown

VIUV

VIUVHY

ISD

VIN Rising

VSYNC = 0V

2

2.25

V

120

mV

0.2

1.5

µA

 2008 Semtech Corp.



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