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Overview
| Topology | Buck Converter |
| Input voltage | 4-6 V |
| Switching frequency | 200 kHz |
| Output 1 | 0.35 A |
| IC revision | Issue 1 |
Description
The ZXSC400 is a voltage mode boost converter in the SOT23-6 package. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the LED current will typically change by less than 1%. Using high efficiency Zetex switching transistors with ratings of 20V and higher allow many LEDs to be chained in series for the best LED current matching possible.
Features
- 1.8V to 8V supply range
- Typical output regulation of 1%
- Over 80% typical efficiency
- 4.5A typical shutdown current
- Series connection for ultimate LED current matching
Typical applications
- White LED backlighting for colour LCD panels
- General LED backlighting
- High performance white LED flashlights
- General LED driving from batteries
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, 47 µH, 0.77 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance47 µH | Rated Current0.77 A | Saturation Current0.7 A | Self Resonant Frequency18 MHz | MountSMT |