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Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 5.5-100 V |
| Switching frequency | 300 kHz |
| Output 1 | 24.72 V / 1 A |
| IC revision | B |
Description
Demonstration circuit 1342B features the LT3758AEMSE in a 300kHz SEPIC converter circuit, designed for a 24V output from a 18V to 72V input. The LT3758A operates over an input range of 5.5V to 100V, and features a novel FBX pin architecture, which allows it to be connected directly to a resistor divider from either a positive output voltage or a negative output voltage.
Features
TheLT3758Aoperatesover an input range of 5.5Vto 100V, suitable for automotive, telecom and industrial applications. It also exhibits a low shutdown current of 1µA, making it ideal for battery-operated systems. Thanks to a novel FBX pin architecture, the LT3758A can be connected directly to a resistor divider from either a positive output voltage or a negative output voltage to ground. It also packs many popular features such as soft-start, input under voltage lockout, adjustable frequency and clock synchronization in a small 10-lead MSOP package or a 3mm × 3mm QFNpackage.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | 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) | Type | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-DD SMT Shielded Coupled Inductor, 47 µH, 47 µH | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-DD SMT Shielded Coupled Inductor | Inductance 147 µH | Inductance 247 µH | Rated Current1.45 A | Rated Current 21.45 A | Saturation Current3.1 A | DC Resistance 10.125 Ω | DC Resistance 20.125 Ω | DC Resistance 10.15 Ω | DC Resistance 20.15 Ω | Self Resonant Frequency5 MHz | TypeCrossed | –Check availability |
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |