MAX1549ETL Datasheet, PDF (14/35 Pages) Maxim Integrated Products – Dual, Interleaved, Fixed-Frequency Step-Down Controller with a Dynamically Adjustable Output

Dual, Interleaved, Fixed-Frequency Step-Down
Controller with a Dynamically Adjustable Output
Table 1. Component Selection for Standard Applications
COMPONENT
Input Voltage (V_IN)
Output Voltage (V_OUT)
Load Current
Switching Frequency
C_{IN_}, Input Capacitor
C_{OUT_}, Output Capacitor
N_{H_} High-Side MOSFET
PWM1
5V to 16V
G1
G0
V_OUT1
0
0
1.50V
0
1
1.30V
1
0
1.00V
1
1
0.70V
6A
300kHz
PWM2
5V to 16V
2.50V
5A
300kHz
(2) 10µF, 25V
Taiyo Yuden TMK432BJ106KM
470µF, 4V, 10mΩ
Sanyo POSCAP 4TPD470M
330µF, 6.3V, 10mΩ
Sanyo POSCAP 6TPD330M
Siliconix Si4800BDY or
Fairchild Semiconductor
FDS6612A
Siliconix Si4800BDY or
Fairchild Semiconductor
FDS6612A
N_{L_} Low-Side MOSFET
Siliconix Si4736DY or
Fairchild Semiconductor
FDS6670A
Siliconix Si4736DY or
Fairchild Semiconductor
FDS6670A
D_{L_} Schottky Rectifier
(if needed)
L_ Inductor
R_{CS_}
1A, 30V, 0.45V_f
Nihon EP10QS03L
2.5µH
Sumida CDRH104-2R5NC
12mΩ ±1%, 0.5W resistor
IRC LR2010-01-R012F or
Dale WSL-2010-R012F
1A, 30V, 0.45V_f
Nihon EP10QS03L
4.7µH
Sumida CDRH124-4R7MC
15mΩ ±1%, 0.5W resistor
IRC LR2010-01-R015F or
Dale WSL-2010-R015F
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