1A, 76V, High-Efficiency MAXPower
Step-Down DC-DC Converter
VIN
7.5V TO 36V
R1
CIN
68µF
MAX5035B FB
BST
ON/OFF
VIN
LX
Ct Rt
SGND GND
VD
0.1µF
L1
0.1µF 220µH
D1
B240
VOUT
5V
COUT
68µF
R1'
C'IN
68µF
MAX5035A FB
BST
ON/OFF
VIN
LX
Ct' Rt'
VD
SGND GND
0.1µF
L1'
0.1µF 100µH
D1'
B240
V'OUT
3.3V
C'OUT
68µF
Figure 4. Dual-Sequenced DC-DC Converters (Startup Delay Determined by R1/R1’, Ct/Ct’ and Rt/Rt’)
Chip Information
TRANSISTOR COUNT: 4344
PROCESS: BiCMOS
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