SY21299DBC

High Current Step Up Regulator

SY21299DBC High Current Step Up Regulator Datasheet

Parameters
Features
Description

Part Number	SY21299DBC
Vin_min (V)	3
Vin_max (V)	5.5
Limit Current (A)	9
Fsw (MHz)	adj.
Vo_max (V)	36
Vref Accuracy	±2%
Rdson1	65
Rdson2
Features / Special Function	Adj. Ilimit
Package	DFN3x3-10

3V to 5.5V Input Range
30V Maximum Output Voltage
1 µA Shutdown Current (Typ.)
380 µA Quiescent Current (Typ.)
Programmable Peak Current Limit
Programmable Constant Off-Time
Low RDS(ON) for Internal 9A N-Channel MOSFET: 65mΩ
Internal Soft-Start
RoHS-Compliant and Halogen-Free
Compact DFN3mm×3mm-10 Package

The SY21299 high efficiency step-up regulator operates using current mode control over an input voltage range from 3V to 5.5V. It integrates an N-channel MOSFET with low 65mΩ RDS(ON) to minimize conduction loss. A built-in internal softstart circuitry minimizes inrush current at startup.

The device offers cycle-by-cycle overcurrent and thermal shutdown protections.

The SY21299 is available in a compact DFN3×3- 10 package