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Overview
| Topology | Boost Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1000-1400 kHz |
| Output 1 | 30 V |
| IC revision | 2-2 |
Description
The AP5727 is a high efficiency boost converter in a compact SOT25 that provides the bias voltages for OLED Sub Display and TFT-LCD (Liquid Crystal Display).
A high 1.2MHz switching frequency and internal compensation minimizes external part count, PCB area and cost. Integrated soft start reduces inrush current.
The AP5727 has a 1.25V feedback voltage making it compatible with industry standard boost converters used to bias LCD panels.
Features
- 30V High Output Voltage
- Fast 1.2MHz Switching Frequency
- Current limit and UVLO Protections
- Internal Thermal Shutdown
- Maximum 1μA Shutdown Current
- Integrated Soft-start Function
- SOT25: Available in “Green” Molding Compound(No Br, Sb)
- Lead Free Finish/RoHS Compliant (Note 1)
Remarks:
- A 10μH~22μH inductor is recommended for most AP5727 applications
Typical applications
- RF amplifier bias voltages
- OLED bias supply for a clamshell handset sub display
- Small size TFT-LCD Bias power supply.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 22 µH, 0.51 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance22 µH | Rated Current0.51 A | Saturation Current0.36 A | Self Resonant Frequency26 MHz | MountSMT |