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ADI LTC3822EDD-1#TRPBF product image
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ADI LTC3822EDD-1#TRPBF

Manufacturer
ADI
MPN
LTC3822EDD-1#TRPBF
LCSC Part #
C686165
Packaging
DFN-12-EP(3x3)
Customer #
Key Attributes
1 Adjustable Step-down type DFN-12-EP(3x3) DC DC Switching Controllers RoHS
DatasheetADI LTC3822EDD-1#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 2.1626$ 2.16
10+$ 1.834$ 18.34
30+$ 1.6289$ 48.87
100+$ 1.4191$ 141.91
500+$ 1.325$ 662.50
1,000+$ 1.2834$ 1283.40
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingDFN-12-EP(3x3)
Operating Temperature-40℃~+85℃@(TA)
Synchronous RectifierYes
FeaturesBuilt-in current sense resistor;Adjustable soft-start;Output voltage tracking;Adjustable current limiting;Light load efficient mode;Frequency synchronization;Overcurrent Protection;Operating status indication
Output Current-
Number of Channels1
TopologyBuck
Frequency - Switching300kHz;550kHz;750kHz
Operating Voltage2.75V~4.5V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage-
FunctionStep-down type
Quiescent Current7.5uA
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Introduction

AI Translation

The L∞3822 - 1 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for sense resistors and improves eff iciency. Burst Mode operation provides high eff iciency at light loads. The 99% maximum duty cycle provides low dropout operation, extending operating time in battery-powered systems. The operating frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3822 - 1 can be synchronized to an external clock from 250kHz to 750kHz. The LTC3822 - 1 is available in the tiny footprint thermally enhanced 12 - pin DFN package or 16 - pin narrow SSOP package.

Features

AI Translation
  • Dual N-Channel MOSFET Synchronous Drive
  • No Current Sense Resistor Required
  • Optimized for 3.3VIN and Li-Ion Applications
  • Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response
  • ±1% 0.6V Reference
  • Low Dropout Operation: 99% Duty Cycle
  • Phase-Lockable or Adjustable Frequency: 250kHz to 750kHz
  • Internal Soft-Start Circuitry
  • Tracking and Adjustable Soft-Start Input
  • Selectable Maximum Peak Current Sense Threshold
  • Selectable Burst Mode(⊥)/Forced Continuous/Pulse Skipping Mode at Light Load
  • Digital RUN Control Pin
  • Output Overvoltage Protection
  • Micropower Shutdown: IQ = 7.5μA
  • Tiny Thermally Enhanced 12-Pin 3mm×3mm DFN or 16-Pin Narrow SSOP Packages

Applications

AI Translation
  • Single Cell Li-Ion Powered Systems
  • 3.3VIN Systems