SC1408IS.TR(2000) データシートの表示（PDF） - Semtech Corporation

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SC1408IS.TR
(Rev.:2000)

Low Voltage, Boost DC-DC Controller

Semtech Corporation 

LOW VOLTAGE, BOOST DC-DC

CONTROLLER

SC1408

August 22, 2000

ABSOLUTE MAXIMUM RATINGS

Parameter

Input Voltage

Small Signal Ground to Power Ground

Symbol

BST to GND

GND to AGND

Maximum

-0.3 to 18

±0.1

Units

V

V

GATE to GND

-0.3 to VBST+0.3

V

FB, SHDN, REF, ISENSE to GND

-0.3 to min. of VBST+0.3 or 5

V

Operating Temperature

TA

Junction Temperature Range

TJ

Storage Temperature

TSTG

Lead Temperature (Soldering) 10 seconds

TL

Thermal Resistance, Junction to Ambient

SO-8

θ=JA

MSOP-8

Thermal Resistance, Junction to Case

SO-8/MSOP-8

θ=JC

-40 to +85

-40 to +150

-65 to +160

+300

165

206

40

°C

°C

°C

°C

°C/W

°C/W

ELECTRICAL CHARACTERISTICS(1)

Unless specified: VOUT = 5V; ILOAD = 0mA; TA = +25°C

PARAMETER

SYM

CONDITIONS

MIN TYP MAX UNITS

Input Voltage

Supply Current

Output Voltage

Load Regulation

Line Regulation

Minimum Start Up Voltage

Maximum Switch On Time

Minimum Switch Off Time

Efficiency

Reference Voltage

Reference Load Regulation

Reference Line Regulation

FB Trip Point Voltage

FB Input Current

TA = 25°C

TA = -40°C to +85°C

VOUT = 16.5V,

SHDN ≤=0.4V

TA = -40°C to +85°C

VOUT = 10V,

TA = -40°C to +85°C

1.6V ≤=SHDN ≤=5V

VIN = 2.0V to 5.0V, TA = -40°C to +85°C

VIN = 2.0V, VOUT = 5V, ILOAD = 0mA to 500mA

VIN = 2.7V to 4.0V, VOUT= 5V, ILOAD = 500mA

No load

TON

TOFF

VREF

VIN = 4V, VOUT = 5V, ILOAD = 500mA

IREF = 0µA

TA = -40°C to +85°C

0µA < IREF < 100µA

5V < VOUT < 16.5V

VFB

TA = 25°C

TA = -40°C to +85°C

IFM

TA = 25°C

TA = -40°C to +85°C

1.8

16.5 V

1.8

16.5 V

110 140 uA

2 10 µA

4.800 5.0 5.200 V

60

mV/A

7

mV/V

1.8

V

9.6 16 22.4 µs

1.4 2.3 3.2 µs

87

%

1.176 1.200 1.224 V

-4 10 mV

40 100

1.200

1.176

1.224

-4

+40

µV/V

V

nA

2

© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

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