12

LT1070/LT1071

10701fe

LT/CPI 0202 1.5K REV E • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1989

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LT1074/LT1076

High Voltage Switching Regulators

40V Input (60V for HV Versions), 100kHz, 5A and 2A

LT1170/LT1171/

100kHz High Efficiency Switching Regulators

40V Input (65V for HV Versions), 5A/2.5A/1.25A Internal Switch

LT1172

LT1370/LT1371

500kHz High Efficiency Switching Regulators

35V, 6A/3A Internal Switch

LT1374/LT1376

100kHz High Efficiency Switching Regulators

25V Input, 4.5A/1.5A Internal Switch

LT1765

1.25MHz, 3A, Step-Down Regulator

25V Input, TSSOP-16E, SO8 Package

Forward Converter

Totally Isolated Converter

1070/71 TA07

R4

1.5k

5k

500

Ω

N = 0.875 = 7:8

*REQUIRED IF INPUT LEADS

≥ 2"

R2

SECONDARY VOLTAGE

0V

≈16V

C2

0.01

µF

C5*

100

µF

5V

LT1070/LT1071

GND

FB

+

C3

0.47

µF

N

D1

1:N

•

•

N

+

L1

10

µF

L2

10

µF

15V

COM

+

C4

500

µF

C1

500

µF

+

+

C6

200

µF

C5

200

µF

OPTIONAL

OUTPUT FILTER

+

–15V

SWITCH VOLTAGE

(DIODE FORWARD VOLTAGE)

0V

+

R3

R6

330

Ω

R5

1

Ω

Q1

C3

C4

L1

70

µH

•

•

•

C2

D3

C1

2000

µF

D1

5V

6A

R4

T1

LT1070

GND

FB

20V TO 30V

D4

IM

N

D2

1070/71 TA18

R1

3.74k

R2

1.24k