SY20445AQMC (SY7065AQMC)

1.8V Minimum Input and 5. 5V Maximum Output 5A Peak Current Synchronous Boost with Output Disconnect

SY20445AQMC 1.8V Minimum Input and 5. 5V Maximum Output 5A Peak Current Synchronous Boost with Output Disconnect Datasheet

Parameters
Features
Description

Part number	SY20445AQMC
Vin (min) (V)	1.8
Vin (max) (V)	5.25
Current limit (A)	5
Switching frequency (min)(kHz)	500
Switching frequency (max)(kHz)	500
Vout (min) (V)	2.5
Vout (max) (V)	5.5
Vref accuracy (±%)	1.5
Vout accuracy(±%)
Duty cycle (max)(%)	95
Iq (typ) (uA)	10
Features	Battery voltage monitor
Package	QFN2×2-10
Operating temperature range(°C)	-40 to 125
Functional safety category

1.8V Minimum Input Voltage
Adjustable Output Voltage from 2.5V to 5.5V
5A peak Current Limit
Input under Voltage Lockout
Load Disconnect during Shutdown
Output Over Voltage Protection
Input Battery Voltage Monitor
Automatic Output Discharge at Shutdown:

o SY20445: Auto Output Discharge Function

o SY20445A: No Output Discharge Function

Low R_DS(ON) (Main Switch/Synchronous Switch) at 5.0V Output: 20/40mΩ
Compact Package: QFN2x2-10

Evaluation Board

Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board

EVB_SY20445AQMC

EVB File

The EVB_SY20445AQMC is intended for evaluating a high efficiency synchronous boost regulator SY20445A. It can disconnect the output during the shutdown operation.

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12

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