SY21222ABC (SY7302ABC)

High Efficiency 1MHz, 2A Step Up Regulator

SY21222ABC High Efficiency 1MHz, 2A Step Up Regulator Datasheet

Parameters
Features
Description

Part number	SY21222ABC
Vin (min) (V)	3
Vin (max) (V)	33
Current limit (A)	2
Switching frequency (min)(kHz)	1000
Switching frequency (max)(kHz)	1000
Vout (min) (V)	3
Vout (max) (V)	33
Vref accuracy (±%)	2
Vout accuracy(±%)
Duty cycle (max)(%)	90
Iq (typ) (uA)	100
Features	Soft start
Package	SOT23-6
Operating temperature range(°C)	-40 to 125
Functional safety category

3V to 33V Input Voltage Range
33V Maximum VOUT
2A Internal MSOFET Current Limit
5µA Shutdown Current (Typ.)
100µA Iq (Typ.)
Low RDS(ON) for Internal N-Channel MOSFET: 200mΩ
1MHz Switching Frequency
Minimum On-Time: 100ns Typical
Minimum Off-Time: 100ns Typical
Internal Soft-Start
±2% 0.6V Reference
RoHS-Compliant and Halogen-Free
Compact SOT23-6 Package

The SY21222 high efficiency DC-to-DC step-up regulator operates using current mode control, and can deliver 2A current over a wide input voltage range from 3V to 33V. It integrates an N-channel MOSFET with low 200mΩ RDS(ON) to minimize conduction loss.

The 1MHz switching frequency and internal compensation reduce external inductor and capacitor sizes, and the built-in internal soft-start circuitry minimizes inrush current at startup.

The SY21222 is available in a compact SOT23-6 package.