SC1417BEVB データシートの表示（PDF） - Semtech Corporation

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SC1417BEVB

MicroPower, 620kHz PWM, Step-up DC/DC Converter

Semtech Corporation 

SC1417B

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

Input Supply Voltage

LX Input

LBI Input

EN Input

FB Input

LBO Output

COMP Output

Operating Ambient Temperature Range

Operating Junction Temperature Range

Thermal Impedance, Junction to Ambient

Thermal Impedance, Junction to Case

Storage Temperature Range

Lead Temperature (Soldering) 10 Sec.

VIN

VLX

VLBI

VEN

VFB

VLBO

VCOMP

TA

TJ

θJA

θJC

TSTG

TLEAD

15

-0.4 to 20

-0.3 to 6

-0.3 to 6

-0.3 to 6

-0.3 to 15

-0.3 to 6

-40 to 85

-40 to 125

163

63

-65 to 150

300

V

V

V

V

V

V

V

°C

°C

°C/W

°C/W

°C

°C

Electrical Characteristics

Unless otherwise specified: TA = 25°C. Values in bold apply over full operating ambient temperature range. VIN = 2V, VEN = 2V, All voltages are with

respect to ground, -ve indicates current is flowing out of the pin.

Parameter

Symbol

Conditions

Min Typ Max Units

Input Voltage

VIN

VFB = 1.22V

1.5

12

V

2.0

12

Feedback Voltage

Supply Current in Shutdown

VFB

IQ(OFF)

VCOMP = 600mV, LX floating

VEN = 0V, VLBI = 300mV

1.16 1.22 1.28 V

40

55

µA

65

Supply Current in PWM Mode

IQ

Feedback Input Current

IFB

Error Amplifier Transconductance

Gm

IOUT = 0A, VCOMP = 100mV

VFB = 1.22V

dlCOMP = 5µA

4.3 5.8 mA

15

60

nA

70 140 240 µS

 2006 Semtech Corp.

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