MPQ4253B
36V Buck Converter Supports One Type-A,
One Type-C Dual USB Charging Ports and
Passes Apple MFI, AEC-Q100 Qualified
DESCRIPTION
FEATURES
The MPQ4253B integrates a monolithic, step-
down, switch-mode converter with two USB
current-limit switches and charging port
identification circuitry for each port. The
MPQ4253B can achieve up to 6A of output
current (IOUT), with excellent load and line
regulation across a wide input voltage (VIN)
range.
•
•
•
All-In-One Type-C + Type-A Solution
Passes Apple MFI Certification Test
Type-C Auto-Entry, 1.5A Load Capability
when the Type-A Port Detects a Device Is
Plugged In
Default Frequency Spread Spectrum (FSS)
at 480kHz (FREQ is Floating)
Auto-PFM/PWM Mode
Wide 6V to 36V Operating Input Voltage
(VIN) Range
Selectable Output Voltage (VOUT): 5.1V,
5.17V, or 5.3V
•
•
•
The USB outputs are fixed as one Type-A USB
port and one Type-C USB port. Each USB switch
is current-limited. The USB1 port supports USB
Type-C 5V @ 3A DFP mode. The USB2 port
supports DCP schemes for battery charging
specification (BC1.2), Apple divider 3 mode, and
1.2V/1.2V mode, which eliminates the need for
outside user interaction.
•
•
•
90mV Line-Drop Compensation
Accurate USB1/USB2 Output Current Limit
(IOUT_LIMIT
)
•
•
•
•
•
18mΩ/15mΩ Internal, Low RDS(ON) Buck
Power MOSFETs
18mΩ/18mΩ Internal, Low RDS(ON)
USB1/USB2 Power MOSFETs
250kHz to 1MHz Adjustable Switching
Frequency (fSW)
The MPQ4253B buck and USB2 output is
always on if EN is high. If USB2 detects that a
device is plugged in, then the USB1 port
capability changes to 1.5A automatically.
The step-down converter uses peak current
(IPEAK) mode control to regulate IOUT. Under light-
load conditions, the part enters pulse-frequency
modulation (PFM) mode to improve efficiency.
Buck and USB Over-Current Protection
(OCP) with Hiccup Mode
Supports DCP Schemes for BC1.2, Apple
Divider 3 Mode, and 1.2V/1.2V Mode
Supports USB Type-C 5V @ 3A DFP Mode
Available in a QFN-26 (5mmx5mm)
Package
•
•
Full protection features include over-current
protection (OCP) with hiccup mode, output over-
voltage protection (OVP), and thermal
shutdown. The device supports load-shedding
mode for the USB1 port. When entering load-
shedding, the Type-C advertised current
capability changes to 1.5A.
•
Available in AEC-Q100 Grade 1
APPLICATIONS
•
•
USB Dedicated Charging Ports (DCPs)
USB Type-C + Type-A Hybrid Charging
Ports
The MPQ4253B requires a minimal number of
readily available, standard external components,
and is available in a QFN-26 (5mmx5mm)
package.
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
MPQ4253B Rev. 1.0
7/18/2022
MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2022 MPS. All Rights Reserved.
1
5秒后页面跳转
AT24C256芯片手册参数分析、引脚说明、读写程序示例
LAN8720A的替代型号推荐、资料手册数据分析、特点介绍
SS8550数据手册：应用场景、主要参数分析、特性分析
UC3845全面解析：资料手册参数、引脚详解、维修技巧与替代型号推荐
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
