ADP1878ACPZ-0.6-R7(RevA) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP1878ACPZ-0.6-R7
(Rev.:RevA)

Synchronous Buck Controller with Constant On Time and Valley Current Mode

Analog Devices 

Data Sheet

ADP1878/ADP1879

TYPICAL APPLICATION CIRCUITS

12 A, 300 kHz HIGH CURRENT APPLICATION CIRCUIT

HIGH VOLTAGE INPUT

VIN = 12V

JP3

CVIN

22µF

C3

C4

C5

C6

C7

C8

C9

22µF 22µF 22µF 22µF 22µF

N/A

N/A

CPAR

56pF

CC

560pF

RC

1

ADP1878/

ADP1879

VIN

BST

14

CBST

100nF

Q1

49.3kΩ

2 COMP

SW 13

VREG R7 10kΩ

3 EN

DRVH 12

VOUT RTOP 2kΩ

4 FB

PGND 11

Q3

RBOT

1kΩ

5 GND

DRVL 10

C2

0.1µF

RRES

100kΩ

C1

1µF

6 RES

7 VREG

5kΩ

PGOOD 9

VREG

SS 8

CSS

34nF

Q2

1.2µH

VOUT = 1.8V, 12A

RSNB

Q4

2Ω

CSNB

1.5nF

C20 + C21 + C22 + C23 +

270µF 270µF 270µF 270µF

C24 + C25 + C26 + C27 + C14 TO C19

N/A

N/A

N/A

N/A N/A

MURATA: (HIGH VOLTAGE INPUT CAPACITORS)

22µF, 25V, X7R, 1210 GRM32ER71E226KE15L

PANASONIC: (OUTPUT CAPACITORS)

270µF (SP-SERIES), 4V, 7mΩ, EEFUE0G271LR

INFINEON MOSFETs:

BSC042N03MS G (LOWER SIDE)

BSC080N03MS G (UPPER SIDE)

WÜRTH INDUCTORS:

1.2µH, 2mΩ, 20A, 744325120

Figure 93. Application Circuit for 12 V Input, 1.8 V Output, 12 A, 300 kHz (Q2/Q4 No Connect)

5.5 V INPUT, 600 kHz CURRENT APPLICATION CIRCUIT

HIGH VOLTAGE INPUT

VIN = 5.5V

JP3

CVIN

22µF

C3

C4

C5

C6

C7

C8

C9

22µF 22µF 22µF 22µF 22µF

N/A

N/A

CF

22pF

CC

220pF

RC

1

ADP1878/

ADP1879

VIN

BST

14

CBST

100nF

Q1

56.9kΩ

2 COMP

SW 13

VREG R7 10kΩ

3 EN

DRVH 12

VOUT RTOP 32kΩ

4 FB

PGND 11

Q3

RBOT

1kΩ

5 GND

DRVL 10

C2

0.1µF

RRES

100kΩ

C1

1µF

6 RES

7 VREG

5kΩ

PGOOD 9

VREG

SS 8

CSS

34nF

Q2

0.47µH

VOUT = 2.5V, 12A

RSNB

Q4

2Ω

CSNB

1.5nF

C20 + C21 + C22 + C23 +

180µF 180µF 180µF

N/A

C24 + C25 + C26 + C27 + C14 TO C19

N/A

N/A

N/A

N/A N/A

MURATA: (INPUT CAPACITORS)

22µF, 25V, X7R, 1210 GRM32ER71E226KE15L

PANASONIC: (OUTPUT CAPACITORS)

180µF (SP-SERIES), 4V, 10mΩ, EEFUE0G181XR

INFINEON MOSFETs:

BSC042N03MS G (LOWER SIDE)

BSC080N03MS G (UPPER SIDE)

WÜRTH INDUCTORS:

0.47µH, 0.8mΩ, 30A, 744355147

Figure 94. Application Circuit for 5.5 V Input, 2.5 V Output, 12 A, 600 kHz (Q2/Q4 No Connect)

Rev. A | Page 37 of 40

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