SC4524 データシートの表示（PDF） - Semtech Corporation

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SC4524

Programmable Frequency, 2A Output 30V Step-Down Switching Regulator

Semtech Corporation 

SC4524

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

Max

Units

Input Voltage

BST Pin

BST Pin Above SW

SS Pin

FB Pin

SW Voltage

SW Transient Spikes (<10ns Duration)

Operating Ambient Temperature Range

Thermal Resistance Junction to Ambient

Thermal Resistance Junction to Case

Maximum Junction Temperature

Storage Temperature Range

Lead Temperature (Soldering)10 sec

ESD Rating (Human Body Model)

VIN

VBST

VBST-VSW

VSS

VFB

VSW

VSW

TA

θJA

θJC

TJ

TSTG

TLEAD

ESD

-0.3 to 32

42

24

3

-0.3 to VIN

-0.6 to VIN

VIN +1.5

-2.5

-40 to 85

36

5.5

150

-65 to +150

300

1500

V

V

V

V

V

V

V

°C

°C/W

°C/W

°C

°C

°C

V

Notes: This device is ESD sensitive. ESD handling precaution is required.

Electrical Characteristics

Unless specified: -40°C < TA < 85°C, -40°C < TJ< 105°C, ROSC = 12.1kΩ, VIN = 5V, VBST = 8V

Parameter

Conditions

Maximum Operating VIN

VIN Start Voltage

VIN Start Hysteresis

VIN Quiescent Current

VIN Quiescent Current in Shutdown

Feedback Voltage

Feedback Voltage Line Regulation

FB Pin Input Bias Current

Error Amplifier Transconductance

 2006 Semtech Corp.

Not switching

VSS = 0V

VIN = 3V to 30V

VFB = 1V, VCOMP = 1.5V

2

Min

2.45

0.980

Typ

2.62

75

3.5

40

1.000

0.005

-15

280

Max Units

30

V

2.78

V

mV

5

mA

60

µA

1.020

V

%/V

-30

nA

µΩ-1

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