MAX5035BUSA(2003) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX5035BUSA
(Rev.:2003)

1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter

Maxim Integrated 

1A, 76V, High-Efficiency MAXPower

Step-Down DC-DC Converter

ground configuration). A ground plane is required.

Minimize lead lengths to reduce stray capacitance,

trace resistance, and radiated noise. In particular,

place the Schottky rectifier diode right next to the

device. Also, place BST and VD bypass capacitors

very close to the device. Use the PC board copper

plane connecting to VIN and LX for heat sinking.

Application Circuits

VIN

R1

R2

CIN

VIN

BST

LX

MAX5035

ON/OFF

FB

VD

SGND GND

0.1µF

L1

D1

0.1µF

VOUT

COUT

Figure 2. Fixed Output Voltages

Table 2. Typical External Components Selection (Circuit of Figure 2)

VIN (V)

7.5 to 76

7.5 to 76

7.5 to 76

7.5 to 76

VOUT (V)

3.3

3.3

5

5

IOUT (A)

0.5

1

0.5

1

EXTERNAL COMPONENTS

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 68µF, Vishay Sprague, 594D686X_010C2T

CBST = 0.1µF, 0805

R1 = 1MΩ ±1%, 0805

R2 = 384kΩ ±1%, 0805

D1 = 50SQ100, IR

L1 = 100µH, Coilcraft Inc., DO5022P-104

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 68µF, Vishay Sprague, 594D68X_010C2T

CBST = 0.1µF, 0805

R1 = 1MΩ ±1%, 0805

R2 = 384kΩ ±1%, 0805

D1 = 50SQ100, IR

L1 = 100µH, Coilcraft Inc., DO5022P-104

15 to 76

12

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 15µF, Vishay Sprague, 594D156X0025C2T

CBST = 0.1µF, 0805

1

R1 = 1MΩ ±1%, 0805

R2 = 139kΩ ±1%, 0805

D1 = 50SQ100, IR

L1 = 220µH, Coilcraft Inc., DO5022P-224

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