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ADI LTC7800EUDC#TRPBF product image
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ADI LTC7800EUDC#TRPBFRoHS

Manufacturer
MPN
LTC7800EUDC#TRPBF
LCSC Part #
C690193
Packaging
QFN-20-EP(3x4)
Customer #
Key Attributes
1 Adjustable 800mV~24V Step-down type QFN-20-EP(3x4) DC DC Switching Controllers RoHS
Datasheetpdf iconADI LTC7800EUDC#TRPBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.6962$ 6.70
200+$ 2.592$ 518.40
500+$ 2.5012$ 1250.60
1,000+$ 2.4558$ 2455.80
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-20-EP(3x4)
Synchronous RectifierYes
Operating Temperature-40℃~+125℃@(TJ)
FeaturesAdjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Overcurrent Protection;Built-in LDO regulator
Output Current-
Number of Channels1
TopologyBuck
Frequency - Switching2.25MHz
Operating Voltage4V~60V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage800mV~24V
FunctionStep-down type
Quiescent Current50uA

Introduction

AI Translation

The LTC7800 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 2.25MHz. The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7800 features a precision 0.8V reference and power good output indicator. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of the LTC7800 can be programmed between 0.8V to 24V. The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.

Features

AI Translation
  • Wide VIN Range: 4V to 60V (65V Abs Max)
  • Low Operating IQ: 500μA
  • Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
  • RSENSE or DCR Current Sensing
  • Phase-Lockable Frequency (320kHz to 2.25MHz)
  • Programmable Fixed Frequency (320kHz to 2.25MHz)
  • Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode Operation at Light Load
  • Selectable Current Limit
  • Very Low Dropout Operation: 98% Duty Cycle
  • Adjustable Output Voltage Soft-Start or Tracking
  • Power Good Output Voltage Monitor
  • Output Overvoltage Protection
  • Low Shutdown IQ: < 14μA
  • Internal LDO Powers Gate Drive from VIN or EXTVCC
  • No Current Foldback During Start-Up
  • Small 20-Pin 3mm × 4mm QFN Package

Applications

AI Translation
  • Automotive Always-On Systems
  • Battery Powered Digital Devices
  • Distributed DC Power Systems