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Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 5-48 V |
| Switching frequency | 300-2000 kHz |
| Output 1 | 24 V / 0.61 A |
Description
The LT®8361 is a current mode DC/DC converter with a100V, 2A switch operating from a 2.8V to 60V input. Witha unique single feedback pin architecture it is capable ofboost, SEPIC or inverting configurations. Burst Modeoperation consumes as low as 9µA quiescent current tomaintain high efficiency at very low output currents, whilekeeping typical output ripple below 15mV.An external compensation pin allows optimization of loopbandwidth over a wide range of input and output voltagesand programmable switching frequencies between 300kHzand 2MHz. A SYNC/MODE pin allows synchronization toan external clock. It can also be used to select betweenburst or pulse-skip modes of operation with or withoutSpread Spectrum Frequency Modulation for low EMI.For increased efficiency, a BIAS pin can accept a secondinput to supply the INTVCC regulator. Additional featuresinclude frequency foldback and programmable soft-startto control inductor current during startup.The LT8361 is available in a thermally enhanced 16-leadMSOP package with four pins removed for high voltagepin spacings.
Features
- Wide Input Voltage Range: 2.8V to 60V
- Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9µA
- 2A, 100V Power Switch
- Positive or Negative Output Voltage Programming with a Single Feedback Pin
- Programmable Frequency (300kHz to 2MHz)
- Synchronizable to an External Clock
- Spread Spectrum Frequency Modulation for Low EMI
- BIAS Pin for Higher Efficiency
- Programmable Undervoltage Lockout (UVLO)
- Thermally Enhanced 16-lead MSOP packages
Typical applications
- Medical Diagnostic Equipment
- Portable Electronics
- Telecom
- Industrial and Automotive
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | L1 (µH) | L2 (µH) | IR (mA) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 742792040 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | 600 | 700 | 150 MHz | 2000 | 0.15 | High Current | 52000000 | – | 1500 | – | – | – | – | – | – | ||
 | 744877220 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-DD SMT Shielded Coupled Inductor | – | – | – | 800 | 0.26 | Straight | 22 | 22 | 800 | 1.8 | 0.215 | 0.215 | 0.26 | 0.26 | 16 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 742792040 | SPEC | |
| 744877220 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | L1 (µH) | L2 (µH) | IR (mA) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Samples |
|---|