SA23002ATWD

High Efficiency 2.8V-5.5V, 2A Single Synchronous Buck Converter

SA23002ATWD High Efficiency 2.8V-5.5V, 2A Single Synchronous Buck Converter Datasheet

Parameters
Features
Description

Part Number	SA23002ATWD
Vin_min (V)	2.8
Vin_max (V)	5.5
Io_max (A)	2
Channels	1
Vo_min (V)	0.6
Fsw (MHz)	2.35
Vref (V)	0.6
Vref Accuracy	±1.2%
Iq (uA)	22
Rdson1	83mΩ
Rdson2	43mΩ
Soft Start	0.25
Package	DFN1.4x1.8-6
Topology	Sync. Buck
Protection Mode	Hic-cup SCP
Features / Special Function	PWM and PFM Operating Selectable
Temp Range	-40°C ~125°C

• 2.8V to 5.5V Input Voltage Range

• Up to 2A Output Current

• External Adjustable Voltage with ±1.2% Reference Accuracy

• 1μA Shutdown Current (Typical)

• Fixed 2.35MHz Switching Frequency

• PWM and PFM Operating Selectable

• 100% Duty Cycle Capability

• 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 SA23002A 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 2A. It uses built-in power MOSFETs to supply a resistor-configurable output voltage between 0.6V and VIN. The 2.35MHz constant switching frequency reduces the required external inductor and capacitors size.

The SA23002A offers excellent efficiency over a wide range of applications by providing internal 83mΩ power and 43mΩ synchronous rectifier MOSFETs and frequency reduction under light load conditions. The 1μA shutdown supply current allows the device to be used in low power applications. The SA23002A ensures safe operation in all operating conditions, providing cycle-by-cycle current limit, input undervoltage lockout, internal soft-start, output undervoltage protection and thermal shutdown.

The SA23002A is available in a DFN1.4×1.8-6 package.