DC-DC Converter
Single Output Buck Converter
uP9614P
Wide Input Voltage, High Performance, Single Synchronous Step-Down Converter
Datasheets PDF
General Description
The uP9614 is a high-efficiency, single synchronous buck converter with an internal power switch. With internal low RDS(ON) switches, the high-efficiency buck converter is capable of delivering up to 7A output current for charger interface. The proprietary RCOTTM technology provides fast transient response and high noise immunity. When there is a ripple injection circuit, it can support ceramic and OSCON output capacitors for low ESR application. This combination is ideal for building modern low duty ratio, untra-fast load step response DC-DC converters. The output voltage ranges from 2.9V to12V, and the conversion input voltage ranges is from 10.8V to 30V. The quasi-constant switching frequency is 100kHz. RCOTTM control tracks the 100kHz switching frequency over a wide range of input and output voltages, while it increases the switching frequency at step-up of load.
The strong gate drivers of the uP9614 allow low RDS(ON) FETs for high current applications. It is available in a space saving WQFN4x4-32L package.
Pin Configuration & Typical Application Circuit
Feature
- Input Voltage Absolute Maximum Rating: 32V
- Wide Input Voltage Range: 10.8V to 30V
- Input Over Voltage Protection: 32V (typ.)
- Output Voltage Range: 2.9V to 12V
- Wide Output Load Range: 0A to 7A
- Built-In 1% 1V Reference
- RCOTTM (Robust Constant On-Time) Control Architecture
- Quasi-Constant Switching Frequency Operation: 100kHz
- 1ms, 2ms, 4ms and 8ms Selectable Output Voltage Soft-Start
- Pre-charged Start-up Capability
- Built-in Output Discharge
- Built-in VIN OVP/VOUT OVP/Output UVP/OCP/OTP
- WQFN4x4-32L Package
- RoHS Compliant and Halogen Free
Application
- Switched-Mode Power Supplies
- AC-to-DC, DC-to-DC Converters
- Motor Control Solar Power, UPS