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LTC3835-1

Features: ` Wide Output Voltage Range: 0.8V VOUT 10V` Low Operating IQ: 80A` OPTI-LOOP® Compensation Minimizes COUT` ±1% Output Voltage Accuracy` Wide VIN Range: 4V to 36V Operation` Phase-Lockable Fixed Frequency 140kHz to 650kHz` Dual N-Channel MOSFET Synchronous Drive` Very Low Dropout Op...

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SeekIC No. : 004402386 Detail

LTC3835-1: Features: ` Wide Output Voltage Range: 0.8V VOUT 10V` Low Operating IQ: 80A` OPTI-LOOP® Compensation Minimizes COUT` ±1% Output Voltage Accuracy` Wide VIN Range: 4V to 36V Operation` Phase-Loc...

LTC3835-1 Data Sheet

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Part Number:
LTC3835-1
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Wide Output Voltage Range: 0.8V VOUT 10V
` Low Operating IQ: 80A
` OPTI-LOOP® Compensation Minimizes COUT
` ±1% Output Voltage Accuracy
` Wide VIN Range: 4V to 36V Operation
` Phase-Lockable Fixed Frequency 140kHz to 650kHz
` Dual N-Channel MOSFET Synchronous Drive
` Very Low Dropout Operation: 99% Duty Cycle
` Adjustable Output Voltage Soft-Start or Tracking
` Output Current Foldback Limiting
` Output Overvoltage Protection
` Low Shutdown IQ: 10A
` Selectable Continuous, Pulse-Skipping or Burst Mode® Operation at Light Loads
` Small 16-Lead Narrow SSOP or 3mm * 5mm DFN Package


Application

·Automotive Systems
·Telecom Systems
·Battery-Operated Digital Devices
·Distributed DC Power Systems


Pinout

Connection Diagram


Specifications

Input Supply Voltage (VIN) ................................. 36V to 0.3V
Top Side Driver Voltage (BOOST) ........................ 42V to 0.3V
Switch Voltage (SW) .............................................. 36V to 5V
INTVCC, (BOOST-SW) ........................................ 8.5V to 0.3V
RUN, TRACK/SS ..................................................... 7V to 0.3V
SENSE+, SENSE Voltages .................................. 11V to 0.3V
PLLIN/MODE, PLLLPF ......................................INTVCC to 0.3V
ITH, VFB Voltages .............................................. 2.7V to 0.3V
Peak Output Current <10s (TG, BG) ..................................3A
INTVCC Peak Output Current ........................................ 50mA
Operating Temperature Range (Note 2)............. 40 to 85
Junction Temperature (Note 3) ..................................... 125
Storage Temperature Range
GN Package ..................................................... 65 to 150
Storage Temperature Range
DHC Package .................................................. 65 to 125
Lead Temperature (GN Package, Soldering, 10 sec) .... 300


Description

The LTC®3835-1 is a high performance step-down switching regulator 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 650kHz. The 80A no-load quiescent current extends operating life 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 LTC3835-1 features a precision 0.8V reference and a power good output indicator.

The 4V to 36V input supply range encompasses a wide range of battery chemistries. The TRACK/SS pin ramps the output voltage during startup. Current foldback limits MOSFET heat dissipation during short-circuit conditions.




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