LT8610AX
RECOMMENDED FOR NEW DESIGNS42V, 3.5A Synchronous Step-Down Regulator with Operation to 175°C
- Part Models
- 2
- 1ku List Price
- Starting From $186.21
Overview
- 100% Tested at 175°C
- ±2% Reference Accuracy Over –40°C to 175°C Range
- Wide Input Voltage Range: 3.7V to 42V
- Ultralow Quiescent Current Burst Mode® Operation
- High Efficiency Synchronous Operation:
- 91% Eff. at 0.5A, at 175°C, 3.3VOUT from 12VIN
- 92% Eff. at 0.5A, at 175°C, 5VOUT from 12VIN
- Adjustable and Synchronizable Frequency: 200kHz to 2.2MHz
- No Thermal Shutdown
- Internal Compensation
- Output Soft-Start and Tracking
- Power Good Flag
- Small Thermally-Enhanced 16-Lead MSOP Package
The LT8610AX is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator rated to 175°C junction temperature. The LT8610AX is 100% tested a 175°C. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency across a wide range of output currents while keeping the output ripple low. A SYNC pin allows synchronization to an external clock. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VIN undervoltage lockout or to shut down the LT8610AX. A capacitor on the TR/SS pin programs the output voltage ramp rate during startup while the PG flag signals when VOUT is within ±9% of the programmed output voltage as well as fault conditions. The LT8610AX is available in small 16-lead MSOP package with exposed pad for low thermal resistance.
| Feedback Voltage | Min VIN | Output Current | Notes | |
| LT8610AC-1 | 0.80V | 3.0V | 3.5A | Fsw = 1.5MHz to 2.2MHz, Optimized Transient Response |
| LT8610AC | 0.80V | 3.0V | 3.5A | Fsw = 200kHz to 2.2MHz |
| LT8610AB | 0.97V | 3.4V | 3.5A | Improved Burst Mode Efficiency |
| LT8610AX | 0.97V | 3.4V | 3.5A | 175°C Max Junction Temp |
| LT8610A | 0.97V | 3.4V | 3.5A | Higher Iout, 30ns Min On Time |
| LT8610 | 0.97V | 3.4V | 2.5A | - |
Applications
- Oil and Gas Exploration
Documentation
Data Sheet 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT8610AXMSE#PBF | 16-Lead MSOP w/ EP | ||
| LT8610AXMSE#TRPBF | 16-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LT8610AXMSE#PBF | PRODUCTION | |
| LT8610AXMSE#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT8610AXMSE#PBF | PRODUCTION | |
| LT8610AXMSE#TRPBF | PRODUCTION | |
|
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process |
||
| LT8610AXMSE#PBF | PRODUCTION | |
| LT8610AXMSE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
LT8610A LT8610AB |
42V, 3.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT8610
- LT8610A
- LT8610AB
- LT8610AC
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LT8610
- LT8610A
- LT8610AB
- LT8610AC
- LT8610AC-1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.