Products
LT80602
RECOMMENDED FOR NEW DESIGNS3V to 65V, 2.5A/3.5A/4.5A Synchronous Step-Down Silent Switcher with 8μA Quiescent Current
- Part Models
- 8
- 1ku List Price
- Starting From $1.90
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Overview
- Silent Switcher® Architecture
- Ultralow EMI Emissions
- Spread Spectrum Frequency Modulation
- High Efficiency at High Frequency
- Up to 94.3% at 400kHz, 90% at 2.1MHz, 24VIN to 5VOUT
- Up to 95.6% at 400kHz, 91.1% at 2.1MHz, 48VIN to 12VOUT
- Pin Selectable Fixed 3.3V, Fixed 5V, or Adjustable Output from 0.8V to 99% of VIN
- Low Quiescent Current Burst Mode Operation
- 8μA IQ Regulating 24VIN to 5VOUT
- On-the-Fly Mode Change Among Burst Mode, Pulse-Skipping Mode, and FCM
- Built-in Output-Voltage Monitoring and Die Temperature Monitoring with PG/TJ
- 200kHz to 3MHz Adjustable Switching Frequency with External Clock Synchronization
- 80V Transient-Input Tolerant (LT8060xHV)
- Programmable Soft-Start and Tracking
- Small 17-Lead 3mm × 3mm Quad Flat No-lead (QFN)
The LT8060x and LT8060xHV step-down regulators family feature the Silent Switcher® architecture to minimize electromagnetic interference (EMI) emissions while delivering high efficiency at frequencies up to 3MHz. The LT80602 and LT80602HV deliver up to 2.5A continuous current, the LT80603 and LT80603HV support up to 3.5A, and the LT80603A and LT80603AHV provide up to 4.5A continuous current. An ultralow 8μA quiescent current, with the output in full regulation, enables applications requiring the highest efficiency at light loads. An accurate enable threshold can be set using the EN/UV pin and a resistor at the RT pin to program the switch frequency.
The LT8060x and LT8060xHV enable high-VIN to low-VOUT conversion at high frequency, featuring a productiontested fast minimum top-switch on-time of 25ns (typ). In addition, the device features a PG/TJ pin that can be used to monitor the status of the output voltage or the die temperature. The die temperature monitor allows for direct measurement of the silicon die temperature, enabling a robust and reliable power supply design.
APPLICATIONS
- General Purpose Step-Down
- Automotive and Industrial Supplies
Documentation
Data Sheet 1
User Guide 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 |
|---|---|---|---|
| LT80602AFO+ | F1733F+1F | ||
| LT80602AFO+T | F1733F+1F | ||
| LT80602AFOA/VY+ | F1733FY+1F | ||
| LT80602AFOA/VY+T | F1733FY+1F | ||
| LT80602AFOAH/VY+ | F1733FY+1F | ||
| LT80602AFOAH/VY+T | F1733FY+1F | ||
| LT80602AFOH+ | F1733F+1F | ||
| LT80602AFOH+T | F1733F+1F |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571E PIN/ERRATA |
||
| LT80602AFO+T | PRODUCTION | |
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| LT8620 | RECOMMENDED FOR NEW DESIGNS | 65V, 2A Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
Tools & Simulations
LTspice 2
Models for the following parts are available in LTspice:
- LT80602
- LT80602HV
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.
Evaluation Kits
Evaluates: LT80603, LT80602 in 5V Output-Voltage Application
Resources
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