Overview







Isolated Power Supply



DATA SHEETS
Part Number Description Key Advantages
MAX256 3W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

Simple open-loop circuit speeds power-supply design reducing time to market.
MAX5070, MAX5071 High-Performance, Single-Ended, Current-Mode PWM Controllers

Less than half the delay of competing solutions from current sense to output enhancing reliabible operation.
MAX5069 High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers

Smaller inductor and output filter capacitor lower BOM costs for 100W applications.



Key Specifications:

Isolated Power Supplies
Part Number Application (VIN) VIN
(V)
VIN
(V)
Topology Feedback Freq.
(kHz)
Duty Cycle
(%)
ISTARTUP
(mA)
ICC
(mA)
Gate Drive Current
(A)
Oper. Temp.
(°C)
min max min max max max max
MAX256  - 3 5.5
Half-Bridge
Push-Pull
Open Loop 1000 50 - 1 - -40 to +125
MAX5070 
Base Station (24V)
Industrial (24V)
Networking (48V)
Power Over Ethernet (32-58V)
Telecom (36-72V)
Universal Off-line (90-240VAC)
11 26.5
Flyback
Single-Ended Forward
Linear
Opto
1000
50
100
0.032 3 2
MAX5071 
Base Station (24V)
Industrial (24V)
Networking (48V)
Power Over Ethernet (32-58V)
Telecom (36-72V)
Universal Off-line (90-240VAC)
11 26.5 Single-Ended Forward
Linear
Opto
1000
50
100
0.032 3 2
MAX5069 
Networking (48V)
Telecom (36-72V)
Universal Off-line (90-240VAC)
10.8 24
Full-Bridge
Half-Bridge
Push-Pull
Linear
Opto
2500 50 0.09 3 1
See All Isolated Power Supplies (26)





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