LTC1174 查看數據表（PDF） - Linear Technology

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LTC1174

High Efficiency Step-Down and Inverting DC/DC Converter

Linear Technology 

TYPICAL APPLICATIO S

LTC1174

LTC1174-3.3/LTC1174-5

9V to 5V, – 5V Outputs

INPUT VOLTAGE

4V TO 12.5V

* SANYO OS-CON

** WIMA MKS2

† COILTRONICS CTX100-4

VIN(V) IOUT MAX(mA)

4

75

6

100

8

125

10

145

12

160

13

180

32

L1B

CTX100-4

L1A

41

7 IPGM

6

VIN

8

SHUTDOWN

3 LBIN

1

VOUT

2

LTC1174HV-5

LBOUT

SW

5

GND

4

0.1µF

+

0.1µF

100µF*

20V

L1B†

100µH

MBRS140T3

3.3µF**

+

L1A†

100µH

+

MBRS140T3

VOUT

5V

135mA AT

VIN = 9V

100µF*

16V

100µF*

16V

–VOUT

–5V

1174 TA11 135mA AT

VIN = 9V

9V to 12V, – 12V Outputs

* AVX TAJD226K035

** WIMA MKS2

† COILTRONICS CTX100-4

†† USE 1% METAL FILM RESISTORS

VIN(V) IOUT MAX(mA)

4

20

5

25

6

35

7

45

8

50

9

55

10

62

11

67

12

73

INPUT VOLTAGE

4V TO 12.5V

7 IPGM

6

VIN

8

SHUTDOWN

3 LBIN

2

LTC1174

LBOUT

GND

4

1

VFB

SW 5

+

0.1µF

22µF*

35V

×3

32

L1B

CTX100-4

L1A

41

Si9430DY

1N914

3.3µF**

4

L1B†

100µH

3

1 L1A† 2

100µH +

MBRS140T3

+

MBRS140T3

22µF*

35V

×2

22µF*

35V

×2

301k††

34k††

VOUT

12V

55mA AT

VIN = 9V

–VOUT

–12V

1174 TA12 55mA AT

VIN = 9V

1174fe

17

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