SY20212BAIC

4A, 1.8MHz, I2C Programmable Buck

SY20212BAIC 4A, 1.8MHz, I2C Programmable Buck Datasheet

Parameters
Features
Description

Part Number	SY20212BAIC
Vin_min (V)	2.6
Vin_max (V)	5.5
Io_max (A)	4
Channels
Vo_min (V)	0.7625
Fsw (MHz)	1.8
Vref (V)
Vref Accuracy
Iq (uA)	80
Rdson1	70
Rdson2	40
Soft Start	0.3
Package	TSOT23-8
Topology
Protection Mode	OVP,Hic-cup SCP
Features / Special Function	DAC: 12.5mV lsb, default 1.15Vout,Auto-Discharge
Temp Range

2.6V to 5.5V input voltage range
Fixed frequency operation: 1.8MHz
Low RDS(ON) for internal switches (top/bottom): 70mΩ/40mΩ
Programmable Output Voltage: 0.7625V to 1.55V in 12.5mV/step
Default 1.15V output voltage
4A output current capability
Capable for 0.33µH inductor and 22µF Ceramic Capacitor
PFM/PWM operation for optimum increased efficiency
OVP/OCP/UVLO/OTP protections
Compact package: TSOT23-8

SY20212B is a high efficiency 1.8MHz synchronous step down DC/DC regulator IC capable of delivering up to 4A output current. It can operate over a wide input voltage range from 2.6V to 5.5V and integrates main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss. The output voltage can be programmed from 0.7625V to 1.55V through I²C interface.

SY20212B is available in TSOT23-8 package.