LTC7810
Info : RECOMMENDED FOR NEW DESIGNS
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LTC7810

150V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 5
1ku List Price Starting From $6.12
Features
  • 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
Additional Details
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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
Part Models 5
1ku List Price Starting From $6.12

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC7810ELXE#PBF
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LTC7810HLXE#WPBF
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LTC7810ILXE#PBF
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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

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Apr 6, 2021

- 21_0046

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Transfer of LQFP and LQFP_EP from AEM to AET

LTC7810ELXE#PBF

PRODUCTION

LTC7810HLXE#PBF

PRODUCTION

LTC7810ILXE#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2529A

LTC7810ELXE High Input Voltage Dual Output Synchronous Buck Converter

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DC2529A

LTC7810ELXE High Input Voltage Dual Output Synchronous Buck Converter

LTC7810ELXE High Input Voltage Dual Output Synchronous Buck Converter

Product Detail

Demonstration circuit 2529A is a dual output synchronous buck converter featuring the LTC7810ELXE in a 48-lead eLQFP package.

Key features of this board include: an optional on-board NMOS LDO for DRVCC; jumper for spread-spectrum option; optional resistors for single output dual phase operation; a mode selector that allows the converter to run in CCM, pulse-skipping, adjustable burst clamp or default Burst Mode® operation; SYNC turret for Poly-Phase® operation.

The input voltage range of this demo board is from 16V to 130V and it uses a sense resistor for overcurrent protection. The LTC7810 data sheet gives a complete description of the part, operation and application information and must be read in conjunction with this demo manual for DC2529A.

Tools & Simulations

Tools & Simulations 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.

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