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ADI LTC1709EG-9#PBF product image
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ADI LTC1709EG-9#PBF

Manufacturer
ADI
MPN
LTC1709EG-9#PBF
LCSC Part #
C676532
Packaging
SSOP-36-5.6mm
Customer #
Key Attributes
2 Adjustable 1.1V~1.85V Step-down type SSOP-36-5.6mm DC DC Switching Controllers RoHS
DatasheetADI LTC1709EG-9#PBF
RoHS Compliance1 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.005$ 6.01
10+$ 5.1694$ 51.69
30+$ 4.6606$ 139.82
100+$ 4.2336$ 423.36
Standard Packaging37/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingSSOP-36-5.6mm
Operating Temperature-40℃~+85℃@(TA)
Synchronous RectifierYes
Output Current-
FeaturesAdjustable soft-start;Output voltage differential sensing;Operating status indication;Frequency synchronization;Built-in LDO regulator;Overcurrent Protection;Protection latch
Number of Channels2
TopologyBuck
Frequency - Switching320kHz
Operating Voltage4V~36V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage1.1V~1.85V
FunctionStep-down type
Quiescent Current470uA
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Introduction

AI Translation

The LTC1709-8/LTC1709-9 are 2-phase, VID programmable, synchronous step-down switching regulator controllers that drive two all N-channel external power MOSFET stages in a fixed frequency architecture. The 2-phase controller drives its two output stages out of phase at frequencies from 150kHz to 300kHz to minimize the RMS ripple currents in both input and output capacitors. The 2-phase technique effectively multiplies the fundamental frequency by two, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified. An internal differential amplifier provides true remote sensing of the regulated supply’s positive and negative output terminals as required for high current applications. The RUN/SS pin provides soft-start and optional timed, short-circuit shutdown. Current foldback limits MOSFET dissipation during short-circuit conditions when the overcurrent latchoff is disabled. OPTI-LOOP compensation allows the transient response to be optimized for a wide range of output capacitors and ESR values. The LTC1709-8/LTC1709-9 implement two different VID tables compliant with VRM8.4 and VRM9.0 respectively.

Features

AI Translation
  • Single Controller Operates Two Output Stages Antiphase Reducing Required Input Capacitance and Power Supply Induced Noise
  • Two 5-Bit Desktop VID Codes: LTC1709-8 For VRM8.4 (VOUT from 1.3V to 3.5V) LTC1709-9 For VRM9.0 (VOUT from 1.1V to 1.85V)
  • Current Mode Control Ensures Best Current Sharing
  • True Remote Sensing Differential Amplifier
  • Power Good Output Indicator
  • OPTI-LOOPTM Compensation Minimizes COUT
  • Programmable Fixed Frequency: 150kHz to 300kHz
  • ±1% Output Voltage Accuracy
  • Wide VIN Range: 4V to 36V Operation
  • Adjustable Soft-Start Current Ramping
  • Internal Current Foldback and Short-Circuit Shutdown
  • Overvoltage Soft Latch Eliminates Nuisance Trips
  • Low Shutdown Current: 20μA
  • Available in 36-Lead Narrow SSOP Package

Applications

AI Translation
  • Workstations
  • Internet Servers
  • Large Memory Arrays
  • DC Power Distribution Systems