EP5388QI
EP5388QI is 800mA Synchronous Buck Regulator manufactured by Enpirion.
Overview
The EP5388QI is a synchronous buck converter with integrated Inductor, PWM controller, MOSFETS, and pensation providing the smallest possible solution size. The EP5388QI requires only two small MLCC capacitors to make a plete solution. Integration of the inductor greatly simplifies design, contains noise, reduces part count, and reduces solution footprint. Low output ripple ensures patibility with RF systems. The EP5388QI operates at a switching frequency of 4 MHz, enabling this unprecedented level of integration and small external ponents. Type III voltage mode control is used to provide high noise immunity and wide control loop bandwidth. The small footprint makes this part ideal for space constrained portable applications. Shutdown current of <1u A extends battery life Output voltage level is programmed via a 3-pin VID selector providing seven pre-programmed output voltages along with an option for external resistor divider.
Product Highlights
Featuring Integrated Inductor Technology
Applications
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- - Noise Sensitive RF Applications Area Constrained Applications Wireless Data Applications Portable Gaming Devices Personal Media Players Advanced Mobile Processors, DSP, IO, Memory, Video, Multimedia Engines
- 3mm x 3mm x 1.1mm QFN package
- Only two low cost MLCC caps required
- 4 MHz switching frequency
- High efficiency, up to 94%
- Up to 800m A continuous output current
- Wide 2.4V to 5.5V input range
- VOUT range 0.6V to VIN
- 0.5V
- 3-Pin VID output voltage programming
- 100% duty cycle capable
- Less than 1 µA standby current
- Low VOUT ripple for RF patibility
- Short circuit and over current protection
- UVLO and thermal protection
- Ro HS pliant; MSL 3 260°C reflow
Typical Application Circuit
ENABLE
4.7µF 0603
VSense Vout
VOUT
47u F 1206
Vin
VS0 VS1 VS2
Ordering Information
Part Number Temp Rating (°C) Package
Voltage Select
EP5388QI-T EP5388QI-E
-40 to +85 16-pin QFN T&R EP5388QI Evaluation Board
Figure 1....