Datasheet

MAX1960/MAX1961/MAX1962
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
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PART APP. CIRCUIT 15A OUTPUT 1MHz 15A OUTPUT 500kHz
C1 1, 2, 3 0.47µF ceramic capacitor 1µF ceramic capacitor
C2 1, 2, 3, 4 5 × 10µF ceramic capacitors 5 × 10µF ceramic capacitors
C3 1, 2, 3, 4 2 x 680µF POSCAPs Sanyo 2R5TPD680M8 2 x 680µF POSCAPs Sanyo 2R5TPD680M8
C4 1, 2, 3, 4 1µF ceramic capacitor 1µF ceramic capacitor
C5 1, 2, 3, 4 0.1µF ceramic capacitor 0.1µF ceramic capacitor
C6 1, 2, 3, 4 2.2µF ceramic capacitor 4.7µF ceramic capacitor
C8 1, 2, 3, 4 0.22µF ceramic capacitor 0.22µF ceramic capacitor
C9 1, 2, 3, 4 (Table 4) (Table 5)
C10, C11, C12 4 0.47µF ceramic capacitors 1µF ceramic capacitors
C13, C14 1, 2, 3, 4 4700pF ceramic capacitors 4700pF ceramic capacitors
D1 1, 2, 3, 4
Schottky diode
Central CMSSH-3
Schottky diode
Central CMSSH-3
D2–D5 4
Schottky diodes
Central CMHSH5-2L
Schottky diodes
Central CMHSH5-2L
L1 1, 2, 3, 4
0.22µH, 1.7mΩ inductor
Sumida CDEP1040R2NC-50
0.45µH inductor
Sumida CDEP1040R4MC-50
N1 1, 2, 3, 4
N-channel MOSFET
International Rectifier IRLR7821
N-channel MOSFET
International Rectifier IRLR7821
N2 1, 2, 3, 4
N-channel MOSFET
International Rectifier IRLR7833
N-channel MOSFET
International Rectifier IRLR7833
R1 1, 3 Sets output voltage Sets output voltage
R2 1, 3 10kΩ ±1% resistor 10kΩ ±1% resistor
R3 1, 2, 3, 4 (Table 4) (Table 5)
R4 1, 2 390kΩ ±5% resistor 390kΩ ±5% resistor
R5 1, 2, 3, 4 10Ω ±5% resistor 10Ω ±5% resistor
R6 3, 4
1.5mΩ ±5%, 1W resistor
Panasonic ERJM1WTJ1M5U
1.5mΩ ±5%, 1W resistor
Panasonic ERJM1WTJ1M5U
R7, R8 1, 2, 3, 4 1Ω ±5% resistors 1Ω ±5% resistors
Table 3. Component List for Application Circuits