General Description
AOZ18101DI-01/02 is a current-limiting over-voltage
protection eFuse targeting applications that require front
end protection at the input line. Both VIN and VOUT
terminals are rated at 22 V absolute maximum. There
is a programmable soft-start feature that controls the
inrush current for highly capacitive loads. It also has Input
Under-Voltage Lock Out (UVLO), Input Over-Voltage Output
Clamp (OVC), and Thermal Shut Down Protection (TSD).
AOZ18101DI-01/02 has built-in blocking FET for True
Reverse Current Blocking (TRCB). For application flexibility,
an external blocking FET control pin is also available if
standalone MOSFET is preferred. It also features an internal
current-limiting circuit that protects the supply from large load
current. The current limit threshold can be set externally with
a resistor. It will auto-restart after the fault conditions are
released.
AOZ18101DI-01 is auto-restart version after fault condition.
AOZ18101DI-02 is latch-off version after fault is detected.
Both are available in small 3 mm x 3 mm 10-pin DFN package.
AOZ18101DI-01 is pin to pin compatible with TPS259241.
AOZ18101DI-02 is pin to pin compatible with TPS259240.

Features
• 3.5 V to 14 V input voltage operating range
• 22 V abs max voltage rating on VIN and VOUT pin
• Typical RON: 20 mΩ
• 1 A to 5 A programmable current limit
• Built-in blocking FET for True Reverse Current Blocking
(TRCB)
• Programmable output soft start time
• Fast Over Current Protection (OCP)
• Input Over-Voltage Output Clamp (OVC)
• Input Under-Voltage Lock Out (UVLO)
• Thermal Shut Down Protection (TSD)
• ±2 kV HBM ESD rating
• ±1 kV CDM ESD rating
• IEC 61000-4-2: ±8 kV on VIN and VOUT
• IEC 61000-4-5: ± 40 V on VIN, No cap
• IEC 62368-1: 2014 Certificate No US-40222-UL

Applications
• Servers
• HDD and SSD drivers
• PCI cards
• Networking