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ADI LTC3869IUFD#TRPBF

Hersteller
ADI
Herst.-Teilenr.
LTC3869IUFD#TRPBF
LCSC-Nr.
C686598
Verp.
QFN-28-EP(4x5)
Kundennummer
Hauptmerkm.
2 Adjustable 600mV~12.5V Step-down type QFN-28-EP(4x5) DC DC Switching Controllers RoHS
DatenblattADI LTC3869IUFD#TRPBF
RoHS-Konformität1 Dokumente verfügbar
Nicht vorrätig
Benachrichtigen
Minimum: 1Vielfaches: 1Verkaufseinheit: Piece
Zur BOM-Liste hinzufügen
Stk.E-Preis(Nur als Referenz)Gesamtbetrag
1+$ 5.305$ 5.31
200+$ 2.0529$ 410.58
500+$ 1.9819$ 990.95
1,000+$ 1.9448$ 1944.80
Standardgehäuse2500/Full Reel
Besserer Preis bei größerer Menge?
$

Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
HerstellerADI
Verp.QFN-28-EP(4x5)
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
Output Current-
Features-
Number of Channels2
TopologyBuck
Frequency - Switching780kHz
Operating Voltage4V~38V
Output TypeAdjustable
Switch tube (built-in/external)-
Output Voltage600mV~12.5V
FunctionStep-down type
Quiescent Current3mA
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Beschreibung

KI-Übersetzung

The LTC3869 is a high performance dual synchronous step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phaselockable frequency of up to 780kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out-of-phase.

OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. A wide 4V to 38V input supply range encompasses most battery chemistries. Independent TK/ SS pins for each controller ramp the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode and allows the IC to be synchronized to an external clock.

The LTC3869 is available in low profile 4mm × 4mm and 4mm×5mm QFN packages. The LTC3869-2 is available in an SSOP-28 package. The LTC3869 is pin-compatible with the LTC3850.

Merkmale

KI-Übersetzung
  • Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
  • Accurate Multiphase Current Matching
  • RSENSE or DCR Current Sensing
  • ±0.75% 0.6V Output Voltage Accuracy
  • Phase-Lockable Fixed Frequency 250kHz to 780kHz
  • High Efficiency: Up to 95%
  • Dual N-channel MOSFET Synchronous Drive
  • Wide VIN Range: 4V to 38V (40V Max) Operation
  • Wide VOUT Range: 0.6V to 12.5V Operation
  • Adjustable Soft-Start Current Ramping or Tracking
  • Foldback Output Current Limiting
  • Output Overvoltage Protection
  • Power Good Output Voltage Monitor
  • 5V Low Dropout Regulator
  • Small 28-Lead QFN and Narrow SSOP Packages

Anwendungen

KI-Übersetzung
  • Server Systems
  • Telecom Systems
  • Industrial and Medical Instruments
  • High Power Battery-Operated Devices
  • DC Power Distribution Systems