LT1513 datasheet(2/16 Pages) LINER

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LT1513/LT1513-2

BSOLUTEXI

Supply Voltage ....................................................... 30V

Switch Voltage ........................................................ 40V

S/S Pin Voltage ....................................................... 30V

FB Pin Voltage (Transient, 10ms) .........................

±10V

VFB Pin Current .................................................... 10mA

IFB Pin Voltage (Transient, 10ms) ......................... ±10V

Operating Junction Temperature Range

LT1513C ............................................... 0

°C to 125°C

LT1513I ............................................ – 40

°C to 125°C

Short Circuit ......................................... 0

°C to 150°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec) ................. 300

°C

ELECTRICAL C

HARA TERISTICS

VIN = 5V, VC = 0.6V, VFB = VREF, IFB = 0V, VSW and S/S pins open, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VREF

FB Reference Voltage

Measured at FB Pin

1.233

1.245

1.257

VC = 0.8V

1.228

1.245

1.262

FB Input Current

VFB = VREF

300

550

600

FB Reference Voltage Line Regulation

2.7V

≤ VIN ≤ 25V, VC = 0.8V

0.01

0.03

%/V

VIREF

IFB Reference Voltage (LT1513)

Measured at IFB Pin

– 107

– 100

– 93

VFB = 0V, VC = 0.8V

–110

– 100

– 90

IFB Input Current

VIFB = VIREF (Note 2)

µA

IFB Reference Voltage Line Regulation

2.7V

≤ VIN ≤ 25V, VC = 0.8V

0.01

0.05

%/V

IFBVOS

IFB Voltage Offset (LT1513-2) (Note 3)

IVFB = 60µA (Note 4)

– 7.5

2.5

12.5

IFB Input Current

VIFB = VIREF

– 200

– 10

VFB Source Current

VIREF = – 10mV, VFB = 1.2V

– 700

– 300

– 100

µA

Error Amplifier Transconductance

∆IC = ±25µA

1100

1500

1900

µmho

700

2300

µmho

Error Amplifier Source Current

VFB = VREF – 150mV, VC = 1.5V

120

200

350

µA

Error Amplifier Sink Current

VFB = VREF + 150mV, VC = 1.5V

1400

2400

µA

PACKAGE/ORDER I FOR ATIO

Consult factory for Military grade parts.

ORDER PART

NUMBER

LT1513CR

LT1513CR-2

LT1513IR

LT1513IR-2

TJMAX = 125°C, θJA = 30°C/ W

WITH PACKAGE SOLDERED TO 0.5INCH2 COPPER

AREA OVER BACKSIDE GROUND PLANE OR INTERNAL

POWER PLANE,

θJA CAN VARY FROM 20°C/W TO

> 40

°C/W DEPENDING ON MOUNTING TECHNIQUE

R PACKAGE

7-LEAD PLASTIC DD

FRONT VIEW

TAB

GND

VIN

S/S

VSW

GND

IFB

ORDER PART

NUMBER

LT1513CT7-2

LT1513IT7-2

TJMAX = 125°C, θJA = 50°C/ W, θJC = 4°C/W

T7 PACKAGE

7-LEAD TO-220

VIN

S/S

VSW

GND

IFB

FRONT VIEW

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