The ST2S06A33 and ST2S06B are dual buck DC-DC converters in a QFN12L (4x4 mm) package, optimized for low-voltage digital core power supply in ODD applications, and are typically used to replace high-current linear solutions when power consumption may result in a high temperature application environment.
Schematic diagram
In the input voltage range of 2.5V ~ 5.5V, it can provide up to 0.5A. The high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as resistance dividers to set output voltage values. All you need is an inductor and two capacitors.
Typical application
Application circuit for the ST2S06A33
Application circuit for ST2S06B
The current mode PWM topology and the use of low ESR SMD ceramic capacitors ensure low output ripple. The equipment has thermal protection and current limitation to prevent damage due to accidental short circuit.
Features
● Step - down to the current mode PWM (1.5 MHz) DCDC converters
● Fixed or adjustable output voltage from 0.8 V
● 2% DC output voltage how
● Synchronous rectification
● Reset function for A version
● Inhibit function for the version B
● Internal soft start for startup current limitation and power ON delay of 50-100 µs
● Typical efficiency: & gt; 90%
● 0.5 A output current capability
● Non - switching quiescent current: Max 1.2 mA over temperature range
● RDS (ON) 150 m (typ.)
● Uses tiny capacitors and inductors
● the Available in QFN12L (4 x4 mm)
