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Overview
| Topology | Boost Converter |
| Input voltage | 3-40 V |
| Switching frequency | 100-1000 kHz |
| Output 1 | 25 V / 1 A |
Description
LT3762 is a synchronous DC/ DC controller designed to operate as a constant current source and constant voltage regulator. it features a programmable internal PWM dimming signal generator and a synchronous gate driver.
Features
- 3000:1 External PWM Dimming
- 250:1 Internal PW, Dimming(5% accuracy)
- Wide Vin Operating Range: 2.5V to 40 V
- Synchronous Boost Output Voltage up to 60V
- Spread-Spectrum Frequency Modulation For Lower EMI
- PMOS Switch Driver for PWM and Output Disconnect
- Constant current(+/-3.5%) regulation
- Constant current(+/-2%) regulation
- Rail-tp-rail LED current sense: 0V to 60V
- Programmable Vin Undervoltage Lockout
- Analog Dimming via two conttrol pins
- 100kHz to 1MHz Operation
- Programmable Open LED Protection with OPENLED Flage
- Shor-circuit protection and SHORTLED Flag
- 28 lEAD TSSOP and QFN (4mm x 5mm) Exposed Pad Packages
- Drives LEDs in Boost, Buck, or Buck-Boost Configurations
Typical applications
- Industrial and Automotive Lighting/ Accurate Current-Limited Voltage Regulators
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (Ω) | Size | Version | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744873220 | SPEC | 8 files | WE-DD SMT Shielded Coupled Inductor | 22 | – | 5 | 0.07 | 1280 | – | 22 | 22 | 2.79 | 2.79 | 5 | 0.058 | 0.058 | 0.07 | 0.07 | 11.5 | ||
 | 7447785147 | SPEC | 8 files | WE-PD SMT Power Inductor | 47 | 0.88 | 0.74 | 0.6 | 6033 | Robust | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744873220 | SPEC | |
| 7447785147 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (Ω) | Size | Version | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Samples |
|---|