Features

Wide Input Voltage Range: 2.5V to 5.5V

Output Voltage 5.0V

IOUT up to 1.0 A at VOUT = 5.0 V, VIN ≥ 3.0 V

3MHz PWM Switching Frequency

High Efficiency and Low Quiescent Current

 Over 95 Efficiency

 1μA Shutdown Current

 35μA Quiescent Current in Pass Through

 55μA Quiescent Current in PFM Operation

±2 DC Voltage Accuracy in PWM mode

Undervoltage Lockout (UVLO)

Short Circuit Protection

Hiccup Current Limit

Over Temperature Protection

Selectable Pass Through Mode or True Load

Disconnect During Shutdown

Output Capacitor Pre-Charge and Soft-Start

Pb-free 9-Bump, WLCSP 1.38mm x 1.38mm

RoHS and Green Compliant

-40°C to 85°C Operating Temperature Range

Applications

Smartphones and Tablets

Mobile Internet Devices

USB OTG

Wearables

Portable Devices

Brief Description

The KTC2110 features a high-efficiency, micropower

synchronous boost for Lithium-Ion/Polymer battery

applications. It offers true output disconnect to achieve a

shutdown quiescent current of less than 1.0μA, extending

battery life.

High efficiency over a wide output current range is

achieved by selecting PWM/PFM mode automatically

depending on the output load conditions.

A Pass Through mode allows to transfer the input power

directly to output (not boosting) with over current

protection.

The constant on-time design does not require any external

compensation components, simplifying the design and

providing ultra-fast transient response.

The inrush current-limiting feature minimizes the voltage

droop on the battery supply when the device is turned on.

The KTC2110 is packaged in advanced, RoHS and Green

compliant, 1.38mm x 1.38mm, 9-balls Wafer-Level Chip-

Scale Package (WLCSP).