MAX5035BASASLASHV+ datasheet(13/17 Pages) MAXIM

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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 heatsinking.

MAX5035

GND

BST

VIN

SGND

VOUT

VIN

CIN

0.1

μF

0.1

μF

COUT

ON/OFF

Figure 2. Fixed Output Voltages

VIN (V)

VOUT (V)

IOUT (A)

EXTERNAL COMPONENTS

7.5 to 76

3.3

0.5

7.5 to 76

3.3

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 68µF, Vishay Sprague, 594D686X_010C2T

CBST = 0.1µF, 0805

R1 = 1M

Ω ±1%, 0805

R2 = 384k

Ω ±1%, 0805

D1 = 50SQ100, IR

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

7.5 to 76

0.5

7.5 to 76

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 68µF, Vishay Sprague, 594D68X_010C2T

CBST = 0.1µF, 0805

R1 = 1M

Ω ±1%, 0805

R2 = 384k

Ω ±1%, 0805

D1 = 50SQ100, IR

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

15 to 76

CIN = 68µF, Panasonic, EEVFK2A680Q

COUT = 15µF, Vishay Sprague, 594D156X0025C2T

CBST = 0.1µF, 0805

R1 = 1M

Ω ±1%, 0805

R2 = 139k

Ω ±1%, 0805

D1 = 50SQ100, IR

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

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

Application Circuits

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