Features

• Wide Input voltage range: 3.0V to +28V
• Integrated typical 65mΩ N-Channel MOSFET
• 4.5A Continuous Current
• Wide Over-Voltage threshold range
 Adjustable: 5V to 22V
 Fixed: 5.885V ± 3%
• Fast Over-Voltage response time 100ns
• Start-up Debounce time : 20ms (typ.)
• Low Quiescent Current : 140μA (typ.)
• Integrated Protection
 Thermal Shutdown
 Under voltage protection (UVLO)
 Soft-Start
 OUT to IN Reverse Blocking
• Open-drain & Logic Output Power Good pins
• Integrated Surge Protection up to +100V
• Pb-free Package:
 15-Bump WLCSP 1.6mm x 2.1mm
• -40°C to +85°C Temperature Range

Applications

• Smartphones and Tablets
• Mobile Internet Devices
• Peripherals, E-Readers

Brief Description

The KTS1686 over-voltage protection device features high
current integrated N-Ch MOSFETs with an ultra-low IN to
OUT on-resistance of 65mΩ (typical), actively protecting
low-voltage systems from voltage supply faults up to
+28VDC. An internal clamp protects the device from
surges up to +100V.
An input voltage exceeding the over-voltage threshold will
cause the internal MOSFET to turn off, preventing
excessive voltage from damaging downstream devices.
When the OVLO input set below the external OVLO select
voltage, the KTS1686 automatically chooses the internal
fixed OVLO threshold, preset to 5.885V (typical). The overvoltage
protection threshold can be adjusted with optional
resistor divider to a voltage between 5V and 22V.
The KTS1686 also features reverse bias blocking,
preventing any voltage present at OUT not feeding back
into IN when the device is in the OFF state. When OTG_EN
is high, the path from OUT to IN is enabled, to permit the
powering of external OTG peripherals.
The KTS1686 also features additional protection including
enhanced ESD protection and thermal protection to protect
against over-load conditions.
The KTS1686 is available in a RoHS and Green compliant
15-Bump 1.6mm x 2.1mm WLCSP.