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RICHTEK RT6542AGQW

Produttore
RICHTEKAsian Brands
Cod. Prod.
RT6542AGQW
Cod. LCSC
C6669335
Imballo
WDFN-14(2x3)
Numero Cliente
Attr. chiave
High Efficiency Single Synchronous Buck PWM Controller
Scheda TecnicaRICHTEK RT6542AGQW
Esaurito
Avvisami
Minimo: 1Multiplo: 1Unità di vendita: Piece
Aggiungi alla Lista BOM
QtàPr. unit.(Solo per riferimento)Importo totale
1+$ 0.8002$ 0.80
200+$ 0.3198$ 63.96
500+$ 0.3092$ 154.60
1,500+$ 0.3032$ 454.80
Package Standard1500/Full Reel
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Specifiche del Prodotto

Tutto
TipoDescrizione
CategoriaIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ProduttoreRICHTEK
ImballoWDFN-14(2x3)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Protection latch;Light load efficient mode;Dynamic voltage scaling;Operating status indication;Overcurrent Protection
Number of Channels1
TopologyBuck
Operating Voltage4.5V~5.5V
Switch tube (built-in/external)External
Output Voltage750mV;850mV;875mV;900mV;950mV;975mV;1V;1.05V
Operating Temperature-40℃~+125℃
Output Current-
Frequency - Switching560kHz
Output TypeFixed
FunctionStep-down type
Quiescent Current200uA
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Descrizione

Traduzione AI

The RT6542A PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The RT6542A supports on chip voltage programming function between 0.85V and 1.05V by controlling GX digital inputs. The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The RT6542A achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs and enter diode emulation mode at light load condition. The buck conversion allows this device to directly step down high voltage batteries at the highest possible efficiency. The RT6542A is intended for CPU core, chipset, DRAM, or other low voltage supplies as low as 0.7V. The RT6542A is available in a WDFN-14L 3x2 package.

Caratteristiche

Traduzione AI
  • Intel Cannon VR Support
  • Built-in ±1% Reference Voltage
  • 2-Bit Programmable Output Voltage with Integrated Transition Support
  • Support Intel LPM (overline) (Low-Power Mode) Feature
  • 4700ppm /℃ Programmable Current Limit by LowSide RDS(ON) Sensing
  • 3V to 26V Battery Input Range
  • Internal Voltage Ramp Soft-Start Control
  • Drives Large Synchronous Rectifier FETs
  • Integrated Boost Switch
  • Over/Under-Voltage Protection
  • Thermal Shutdown
  • Power Good Indicator
  • RoHS Compliant and Halogen Free
  • Tiny 14-Lead WDFN Package

Applicazioni

Traduzione AI
  • Notebook Computers
  • CPU/GPU Core Supply
  • Chipset/RAM Supply
  • Generic DC-DC Power Regulator