AN2937 datasheet(6/41 Pages) STMICROELECTRONICS

Part #	AN2937

Description	Power system demonstration kit based on the PM6686 dual

PDF	41 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

6 / 41 page

Main features

AN2937

6/41

Doc ID 15418 Rev 1

Main features

●

5.5 V to 28 V input voltage range

●

Dual fixed 1.05 V/3.3 V and 1.5 V/5.0 V outputs or adjustable 0.7 V to 5.5 V (SMPS1)

and 0 V to 2.5 V (SMPS2), ±1.5% accuracy over valley regulation

●

Low-side MOSFET RDS(on) current sensing and programmable current limit

●

Constant on-time control

●

Selectable switching frequency

●

Soft-start (internally fixed at 2.8 ms) and soft-stop

●

Selectable pulse skipping at light loads

●

Selectable minimum frequency (33 kHz) in pulse skip mode

●

Independent Power Good and EN signals

●

Latched OVP and UVP

●

Charge pump feedback

●

Fixed 3.3 V/5.0 V, or adjustable output 0.7 V to 4.5 V, ±1.5% (LDO): 200 mA

●

3.3 V reference voltage ± 2.0%: 5 mA

●

2.0 V reference voltage ±1.0%: 50 µA

AN2937 Datasheet(PDF) 6 Page - STMicroelectronics