MAX15569 Datasheet, PDF (13/41 Pages) Maxim Integrated Products – 2-Phase/1-Phase QuickTune-PWM Controller with Serial I2C Interface

MAX15569
2-Phase/1-Phase QuickTune-PWM Controller with
Serial I²C Interface
Table 1. Components for Typical Application Circuit
TYPE
OPERATING CONDITIONS
Input Voltage
Output Voltage
Output Current
Load Transient
Current Limit
Switching Frequency
Number of Phases
COMPONENTS
TON
Inductor
REF
V_IN
V_OUT
I_OUT
DI_OUT
I_OCP
f_SW
N_PH
R_TON
L
MOSFET Driver
High-Side MOSFET
Low-Side MOSFET
Current Sense
Bulk Output Capacitors (Mid Frequency)
Ceramic Output Capacitors (High Frequency)
Input Capacitors
DRV
N_H
N_L
R_CS
C_OUT
C_OUT
C_IN
FB Droop Setting
—
IMON
R_IMON,
C_IMON
THERM NTC
R_THERM
2-PHASE DESIGN EXAMPLE
(1MHz OPERATION)
5V to 20V
1V
20A (max), 14A RMS
25A
40A
1MHz
2
200kΩ 1%
0.2µH/9.5mΩ/9.5A inductor
(4.06mm x 4.55mm x 1.2mm)
Vishay IHLP-1616AB-1A
MAX15492
—
—
—
20 x 22µF ceramic capacitors
2 x 10µF, 16V X5R ceramic capacitors
R_FBAC = R_FB = 1kΩ 1%
C_FBAC = 4.7nF
AC droop = -1.5mV/A
DC droop = 0mV/A
R_IMON = 5.62kΩ 1%
C_IMON = 47nF
(260µs time constant)
100kΩ, 5% NTC thermistor
β = 4250K (0603)
Murata NCP18WF104J03RB
TDK NTCG163JF104J (0402) or
Panasonic ERT-J1VR104J
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