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