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Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 3.75-9 V |
| Switching frequency | 2000 kHz |
| Output 1 | 5.5 V / 1.25 A |
Description
The single−ended primary−inductor converter (SEPIC)is a type of DC/DC converter that allows the electricalpotential (voltage) at its output to be greater than, less than,or equal to that at its input. The SEPIC converter iscontrolled by the duty cycle of the main switch Q1.
Features
- Peak Current Mode Control with Internal Slope Compensation
- 1.2 V 2% Reference Voltage
- 2 MHz Fixed Frequency Operation
- Wide Input Voltage Range of 3.2 V to 40 V, 45 V Load Dump
- Input Under voltage Lockout (UVLO)
- Internal Soft−Start
- Low Quiescent Current in Sleep Mode (< 10 A Typical)
- Cycle−by−Cycle Current Limit Protection
- Hiccup−Mode Overcurrent Protection (OCP)
- Hiccup−Mode Short−Circuit Protection (SCP)
- Thermal Shutdown (TSD)
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
- This is a Pb−Free Device
Typical applications
- Headlamps, Backlighting
- Small Form Factor Point−of−Load Power Regulation
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 3.3 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance3.3 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Insulation Resistance0.2 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height1.6 mm | Pad Dimension0.75 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 4.7 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance4.7 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size1206 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor7 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width1.6 mm | Height1.6 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | |||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | Size7332 | Operating Temperature -40 °C up to +150 °C | – | – | – | Length7.3 mm | Width7.4 mm | Height3.2 mm | – | – | Inductance3.3 µH | Performance Rated Current5.7 A | Saturation Current5.3 A | DC Resistance24 mΩ | Self Resonant Frequency51 MHz | VersionPerformance |