LTC7810
RECOMMENDED FOR NEW DESIGNS150V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
- Part Models
- 5
- 1ku List Price
- Starting From $7.75
Overview
- Wide VIN Range: 4.5V to 140V (150V Abs Max)
- Wide Output Voltage Range: 1V ≤ VOUT ≤ 60V
- Low Operating IQ: 16μA (48VIN to 12VOUT and 3.3VOUT)
- Adjustable Gate Drive Level Up to 10V
- Optional Spread Spectrum Operation
- Very Low Dropout: 100% Duty Cycle Operation
- Low IQ in Dropout: 78µA (One Channel On)
- RSENSE or Inductor DCR Current Sensing
- Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
- Phase-Lockable Frequency (75kHz to 720kHz)
- Programmable Fixed Frequency (50kHz to 750kHz)
- Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
- Onboard LDO or External NMOS LDO for DRVCC
- EXTVCC LDO Powers Drivers from VOUT
- Programmable Input Overvoltage Lockout
- 48-Lead (7mm × 7mm) eLQFP Package
- AEC-Q100 in Progress
The LTC7810 is a high performance dual step-down DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages that can operate from voltages up to 140V. A constant frequency current mode architecture allows a phase-lockable frequency of up to 720kHz.
The low no-load quiescent current extends operating run time in battery-powered systems. The LTC7810 features a precision 1V reference, enabling the output voltage to be programmed from 1V to 60V. The gate drive voltage for the LTC7810 can be programmed to 6V, 8V, or 10V to allow the use of logic-level or standard-threshold FETs and to maximize efficiency.
The LTC7810 additionally features spread spectrum operation which significantly reduces the peak radiated and conducted noise on both the input and output supplies, making it easier to comply with electromagnetic interference (EMI) standards.
APPLICATIONS
- Automotive and Transportation
- Industrial and Telecommunications
- Military/Avionics
Documentation
Data Sheet 1
Product Selector Card 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 |
|---|---|---|---|
| LTC7810ELXE#PBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC7810HLXE#PBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC7810HLXE#WPBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC7810ILXE#PBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC7810ILXE#WPBF | LQFP_EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 6, 2021 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET |
||
| LTC7810ELXE#PBF | PRODUCTION | |
| LTC7810HLXE#PBF | PRODUCTION | |
| LTC7810ILXE#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC7810
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LTC7810
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
LTC7810ELXE High Input Voltage Dual Output Synchronous Buck Converter