Step-Down DC/DC Converters

In this series, there are three types of buck converters, ATI2202, ATI2301 and ATI2305, and an evaluation board for ATI2202.

Part Number Price Buy Now Datasheet
ATI2202 $1.28 buy now buynow datasheet

The ATI2202 is a 340 kHz fixed frequency PWM synchronous step-down DC/DC converter. The ATI2202 is operated from 4.75V to 18V, the generated output is adjustable from 0.923V to 0.9Vin, and the output current can be up to 2A.

Input Voltage Range: 4.75V ~ 18V
Output Voltage Adjustable Range: 0.923V ~ 0.9Vin
Output Current up to 2A
Efficiency up to 93%
Programmable Soft Start
Over Current Protection
Over Temperature Protection
RoHS Compliant and 100% Lead (Pb) Free
Fixed Frequency: 340 kHz

Part Number Price Buy Now Datasheet
ATI2202EV1 $39 buy now buynow datasheet

ATI2202 has an evaluation board, ATI2202EV1. It has a wide supply range from 4.75V to 18V and can output up to 2A current continuously. It features a synchronous rectification with integrated high and low side power MOSFETs to achieve high efficiency.

FEATURES

ESD safe
Up to 2A output current with 95% efficiency
Wide Input Voltage Range: 4.75V~18V
Wide Adjustable output: 0.923V~0.9×Vin
Monolithic synchronous buck
Fixed 340KHz frequency
Programmable soft-start on enable control
Overheat, overcurrent and under-voltage protections
RoHS Compliant and 100% Lead (Pb) Free
User friendly layout design for easy measurements

Part Number 10-24 25-99 100-249 250-499 500-900 ≥ 1000 stock Buy Now Datasheet
ATI2301 $2.7 $2.25 $2.00 $1.85 $1.60 $1.35 Contact Us buy now buynow datasheet

The ATI2301 is a step-down current-mode, DC-DC converter. At heavy load, it works at the constant frequency PWM mode which has good stability and transient response. To ensure the longest battery life under light load in portable applications, the ATI2301 features a power-saving pulse-skipping modulation (PSM) mode, which reduces quiescent current to save power.

High Efficiency: up to 96%
Internal Synchronous Rectifier
High Switching Frequency: 1.5MHz
Under-Voltage Lockout
Soft Start
Short Circuit Protection

The ATI2305 is a 1.5MHz switching frequency step-down current-mode, DC-DC converter. With excellent stability and transient response, the constant-frequency PWM control works well at heavy load. There is a power-saving Pulse-Skipping Modulation (PSM) mode in the ATI 2305 which can reduce quiescent current under light load operation to save power and ensure the longest battery life in portable applications.

Efficiency up to 96%
Only 40μA (TYP.) Quiescent Current
Output Current up to 1A
Internal Synchronous Rectifier
Switching Frequency: 1.5MHz
Under-Voltage Lockout
Soft Start
Short Circuit Protection
Thermal Shutdown
5-pin Small SOT23-5, DFN2X2 6-Pin and QFN3X3 16-Pin Package
Pb-Free Package

Datasheet for ATI2305 In stock: Contact us

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