Features

• Wide Input voltage range: 3V to 23V

• 30V Absolute Ratings at VIN and VOUT

• Maximum 5A continuous current

• Integrated FET with 30mΩ (Typ) RON

• Wide Overvoltage threshold range

 Fixed internal: 23V

 Adjustable: 4V to 23V

• Open-Drain power good indicator

• Integrated protection

 Thermal Shutdown

 Under-Voltage Lockout (UVLO)

 Overvoltage Lockout (OVLO)

 VOUT to VIN Reverse Current Blocking

 Over-current limiting

• Surge and ESD Protection

 IEC61000-4-5: ±90V for VIN

 IEC61000-4-2: ±8KV Contact, ±15KV Air

for VIN

 HBM: ±2KV for all Pins

• Safety approvals

 UL 2367, file no. E515099-2021-03-30

 IEC 62368-1, file no. DK-111033-A1-UL

• Pb-free Package:

 15 Bump WLCSP 2.57mm x 1.57mm

 RoHS and Green Compliant

• -40°C to +85°C Temperature Range

Applications

• Computers and Tablets

• Mobile Internet Devices

• Type-C Power Source Switch

• Storage, DSLR and Portable Devices

Brief Description

The KTS1677A is a slew-rate controlled, 30mΩ (Typ), low

resistance MOSFET switch intended to be inserted

between a power source and a load to isolate and protect

against abnormal voltage and current conditions. Featuring

slew-rate turn on control, to prevent excessive large inrush

current, the KTS1677A also features several additional

protection functions, such as input ±90V surge, input

overvoltage, input under-voltage protection, reverse

current blocking, over-current limiting and overtemperature

protection.

Operating from a wide input voltage range of 3V to 30V can

cover USB PD applications to offer essential protection and

enhance system reliability. The KTS1677A in the OFF

state can block voltages on the VIN/VOUT pin of up to 30V

and prevent reverse currents. Two KTS1677A can be used

in to support dual power inputs connecting to the same

downstream device.

The device is packaged in advanced, RoHS and Green

compliant, 2.57mm x 1.57mm, Wafer-Level Chip-Scale

Package (WLCSP).