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ADI LTC3899MPFE#TRPBF

Hersteller
ADI
Herst.-Teilenr.
LTC3899MPFE#TRPBF
LCSC-Nr.
C687076
Verp.
TSSOP-38-EP-4.4mm
Kundennummer
Hauptmerkm.
3 Adjustable TSSOP-38-EP-4.4mm DC DC Switching Controllers RoHS
DatenblattADI LTC3899MPFE#TRPBF
RoHS-Konformität1 Dokumente verfügbar
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Stk.E-Preis(Nur als Referenz)Gesamtbetrag
1+$ 13.4054$ 13.41
10+$ 12.7792$ 127.79
30+$ 11.6964$ 350.89
100+$ 10.7509$ 1075.09
Standardgehäuse2000/Full Reel
Besserer Preis bei größerer Menge?
$

Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
HerstellerADI
Verp.TSSOP-38-EP-4.4mm
Operating Temperature-55℃~+150℃
Synchronous RectifierYes
Output Current-
FeaturesFrequency synchronization;Built-in LDO regulator
Number of Channels3
TopologyBuck;Boost
Operating Voltage4.5V~60V
Frequency - Switching50kHz~900kHz
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage-
FunctionBoost;Step-down type
Quiescent Current29uA
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Beschreibung

KI-Übersetzung

The LTC3899 is a high performance triple output (buck/ buck/boost) DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages. The constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. The LTC3899 operates from a wide 4.5V to 60V input supply range. When biased from the output of the boost converter or another auxiliary supply, the LTC3899 can operate from an input supply as low as 2.2V after start-up. The gate drive for the LTC3899 can be programmed from 5V to 10V to allow the use of logic-level or standard-level FETs and to maximize efficiency. Internal switches in the top gate drivers eliminate the need for external bootstrap diodes. The 29μA 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.

Merkmale

KI-Übersetzung
  • Dual Buck Plus Single Boost Synchronous Controllers
  • Wide Bias Input Voltage Range: 4.5V to 60V
  • Outputs Remain in Regulation Through Cold Crank Down to a 2.2V Input Supply Voltage
  • Buck and Boost Output Voltages Up to 60V
  • Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)
  • No External Bootstrap Diodes Required
  • Low Operating IQ: 29μA (One Channel On)
  • 100% Duty Cycle for Boost Synchronous MOSFET
  • Phase-Lockable Frequency (75kHz to 850kHz)
  • Programmable Fixed Frequency (50kHz to 900kHz)
  • Very Low Dropout Operation: 99% Duty Cycle (Bucks)
  • Low Shutdown IQ: 3.6μA
  • Fixed or Adjustable Boost Output Voltage Saves IQ
  • Small 38-Lead 5mm × 7mm QFN and TSSOP Packages

Anwendungen

KI-Übersetzung
  • Automotive Always-On and Start-Stop Systems
  • Distributed DC Power Systems
  • Multioutput Buck-Boost Applications