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Overview
| Topology | Boost Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1200 kHz |
| Output 1 | 24 V / 0.05 A |
| IC revision | 1 |
Description
The NCP5005 is a high efficiency boost converter operating in current loop, based on a PFM mode, to drive White LED. The current mode regulation allows a uniform brightness of the LEDs. The chip has been optimized for small ceramic capacitors, capable to supply up to 1.0 W output power.
Features
- 2.7 to 5.5 V Input Voltage Range
- Vout to 24 V Output Compliance Allows up to 5 LEDs Drive in Series
- Built−in Overvoltage Protection
- Full EMI Immunity
- Inductor Based Converter brings up to 90% Efficiency
- Constant Output Current Regulation
- 0.3 A Standby Quiescent Current
- Includes Dimming Function (PWM)
- Enable Function Driven Directly from Low Battery Voltage Source
- Automatic LEDs Current Matching
- Thermal Shutdown Protection
- All Pins are Fully ESD Protected
- Low EMI Radiation
- Pb−Free Package is Available
Typical applications
- High Efficiency Step Up Converter
- LED Display Back Light Control
- Keyboard Back Light
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 |