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Wuxi Chipown Micro-electronics AP2953AS8PRG

Hersteller
Wuxi Chipown Micro-electronicsAsian Brands
Herst.-Teilenr.
AP2953AS8PRG
LCSC-Nr.
C130334
Verp.
ESOP-8
Kundennummer
Hauptmerkm.
3A, 18V Synchronous Buck Converter
DatenblattWuxi Chipown Micro-electronics AP2953AS8PRG
RoHS-Konformität1 Dokumente verfügbar
Vorrätig: 12,080
12,080 Ab Lager, sofort versandfertig
Minimum: 5Vielfaches: 5Verkaufseinheit: Piece
Zur BOM-Liste hinzufügen
Stk.E-PreisGesamtbetrag
5+$ 0.3645$ 1.82
50+$ 0.2869$ 14.35
150+$ 0.2537$ 38.06
500+$ 0.2121$ 106.05
2,500+$ 0.1937$ 484.25
4,000+$ 0.1826$ 730.40
Standardgehäuse4000/Full Reel
Besserer Preis bei größerer Menge?
$

Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
HerstellerWuxi Chipown Micro-electronics
Verp.ESOP-8
Operating Temperature-40℃~+85℃
Frequency - Switching310kHz~390kHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Adjustable soft-start;External compensation
Output TypeAdjustable
TopologyBuck
Operating Voltage4.75V~18V
Switch tube (built-in/external)Built-in
Output Voltage925mV~15V
Output Current3A
Quiescent Current1.3mA
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Beschreibung

KI-Übersetzung

AP2953A is a monolithic synchronous rectified step-down regulator integrating MOSFETs with 100mΩ on-resistance, capable of delivering 3A load current over a wide input voltage range (4.75V - 18V). Current mode control provides excellent transient response and cycle-by-cycle current limiting.

Adjustable soft-start time prevents inrush current at startup. In shutdown mode, input current is less than 1uA.

The AP2953A is available in an SOP8-PP package, offering a compact system solution that minimizes external components.

AP2953A is a synchronous rectified, current mode, step-down regulator. It regulates output voltage as low as 0.925V from input voltages ranging from 4.75V to 18V, supplying a maximum load current of 3A.

AP2953A uses current control mode to regulate the output voltage. First, the output voltage is sensed at the FB pin via a resistor divider and amplified by an internal transconductance error amplifier. The output voltage is then controlled by comparing the COMP pin voltage with the internally sensed switch current.

The converter uses a built-in N-channel MOSFET switch to step down the input voltage and regulate the output voltage. Since the high-side MOSFET gate voltage must exceed the input voltage, a bootstrap capacitor is connected between SW and BS to drive the high-side gate. When SW is low, the bootstrap capacitor is charged from the internal 5V supply. When the AP2953A FB pin exceeds 20% above the 0.925V regulation threshold, the overvoltage comparator trips, discharging the COMP pin and SS pin to ground and forcing the high-side switch to turn off.

Merkmale

KI-Übersetzung
  • 3A output current
  • Input voltage range: 4.75V to 18V
  • Integrated 100mΩ power MOSFET
  • Adjustable output range: 0.925V to 15V
  • Up to 95% efficiency
  • Adjustable soft-start time
  • Low-ESR ceramic capacitors for stable operation
  • Fixed 370kHz switching frequency
  • Cycle-by-cycle current limiting
  • Undervoltage protection
  • SOP8-PP package with enhanced thermal dissipation

Anwendungen

KI-Übersetzung
  • Discrete power systems
  • Network systems
  • FPGA, DSP, ASIC power supplies
  • Green electronics
  • Notebook computers