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SA23003CTWD

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2.8V-5.5V Input, 3A Single Synchronous Buck Converter
Datasheet
SA23003CTWD 2.8V-5.5V Input, 3A Single Synchronous Buck Converter Datasheet
Part number SA23003CTWD
Channel(#) 1
Vin (min) (V) 2.8
Vin (max) (V) 5.5
Switching frequency (min)(kHz) 2350
Switching frequency (max)(kHz) 2350
Vout (min) (V) 0.6
Vout (max) (V) 5.5
Iout (max) (A) 3
Vout2 (min)(V)
Vout2 (max )(V)
Iout2 (max)(A)
Vref accuracy (±%) 1.5
Vout accuracy(±%)
Control mode Peak current control
Duty cycle (max)(%) 100
Operation mode FCCM
Iq (typ) (uA)
Features Enable,Power good,Auto-discharge,Fixed soft-start,UVP with hiccup,100% duty cycle,Low ISD,Cycle by cycle overcurrent protection,Pre-bias startup
Package DFN1.4×1.8-6
Operating temperature range(°C) -40 to 125
Functional safety category Capable
  • 2.8V to 5.5V Input Voltage Range
  • Up to 3A Output Current
  • External Adjustable Voltage with ±1.5% Reference Accuracy
  • 1μA Shutdown Current (Typical)
  • Fixed 2.35MHz Switching Frequency
  • Fixed Frequency PWM Operation Modes
  • 100% Duty-Cycle Capable
  • Cycle-by-Cycle Current-Limit Protection
  • Hiccup-Mode Short-Circuit Protection
  • Thermal Shutdown
  • Package: DFN1.4×1.8-6
  • Automotive AEC-Q100 Grade 1 Certified

The SA23003C high efficiency 2.35MHz synchronous buck converter operates over an input voltage range of 2.8V to 5.5V and can deliver an output current up to 3A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 2.35MHz constant switching frequency reduces the required external inductor and capacitor values.  

The SA23003C uses a peak current mode control architecture. It operates in fixed frequency pulse width modulation (PWM) mode at light to heavy loads, thereby maintaining small output voltage ripple over the entire load current range. It also provides cycle-by-cycle current limit protection, output short-circuit protection, and overtemperature protection.

The SA23003C is available in a compact DFN1.4mmx1.8mm-6 pin package. 

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Technical & Design Documentation