ST2S08B Series

Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

Catalog

Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

Part	Topology	Number of Outputs	Voltage - Input (Max) [Max]	Frequency - Switching	Synchronous Rectifier	Output Configuration	Voltage - Input (Min) [Min]	Supplier Device Package	Voltage - Output (Min/Fixed)	Mounting Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Function	Output Type	Current - Output	Voltage - Output (Max) [Max]
STMicroelectronics ST2S08BPQR	Buck	2	5.5 V	1.5 MHz		Positive	3 V	12-QFN (4x4)	0.8 V	Surface Mount	12-VQFN Exposed Pad	125 °C	-30 °C	Step-Down	Adjustable	1.5 A	5.17 V

Catalog

Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

Description

The ST2S08B is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 5.5 V. A high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The device is thermally protected and current limited. The ST2S08B is available in the QFN12L (4 x 4 mm) package.