MPQ4320中文资料美国芯源数据手册PDF规格书
| 厂商型号 |
MPQ4320 |
| 功能描述 | 42V Load Dump Tolerant, 0.5A, Ultra-Compact, Low Quiescent Current, Synchronous Step-Down Converter, AEC-Q100 Qualified |
| 文件大小 |
3.70445 Mbytes |
| 页面数量 |
43 页 |
| 生产厂商 | Monolithic Power Systems Inc. |
| 企业简称 |
MPS【美国芯源】 |
| 中文名称 | 美国芯源系统有限公司官网 |
| 原厂标识 | MPS |
| 数据手册 | |
| 更新时间 | 2025-8-5 16:50:00 |
| 人工找货 | MPQ4320价格和库存，欢迎联系客服免费人工找货 |
MPQ4320规格书详情
DESCRIPTION
The MPQ4320 is a configurable-frequency
(350kHz to 1.8MHz), synchronous, step-down
switching converter with integrated internal highside and low-side power MOSFETs (HS-FET
and LS-FET, respectively). The device provides
up to 0.5A of highly efficient output current (IOUT)
with peak current mode control.
The wide 3.3V to 36V input voltage (VIN) range
and 42V load dump tolerance accommodates a
variety of step-down applications in automotive
input environments. A 1μA shutdown current
(ISD) allows the device to be used in batterypowered applications.
High power conversion efficiency across a wide
load range is achieved by scaling down the
switching frequency (fSW) under light-load
conditions to reduce switching and gate driver
losses.
An open-drain power good (PG) signal indicates
whether the output is within 94.5% to 105.5% of
its nominal voltage.
Frequency foldback helps prevent inductor
current (IL) runaway during start-up. Thermal
shutdown provides reliable, fault-tolerant
operation. High duty cycle and low-dropout (LOD)
mode are provided for automotive cold-crank
conditions.
The MPQ4320 is available in a QFN-12
(2mmx3mm) package with wettable flanks or a
QFN-12 (3mmx4mm) package with wettable
flanks, and is AEC-Q100 qualified.
FEATURES
• Designed for Automotive Applications:
o Survives 42V Load Dump
o Supports 3.1V Cold Crank
o Up to 0.5A of Continuous Output
Current (IOUT)
o Continuous Operation Up to 36V
o -40°C to +150°C Junction Temperature
(TJ) Range
FEATURES (continued)
• Increases Battery Life:
o 1μA Shutdown Supply Current (ISD)
o 20μA Sleep Mode Quiescent Current
(IQ)
o Advanced Asynchronous Modulation
(AAM) Mode Increases Efficiency under
Light Loads
• High Performance for Improved Thermals:
o Integrated 70mΩ HS-FET and 50mΩ
LS-FET
o 65ns Minimum On Time (tON_MIN)
o 50ns Minimum Off Time (tOFF_MIN)
• Optimized for EMC/EMI:
o Frequency Spread Spectrum (FSS)
Modulation
o Symmetric VIN Pinout
o CISPR25 Class 5 Compliant
o 350kHz to 1.8MHz Configurable
Switching Frequency (fSW)
o MeshConnect™ Flip-Chip Package
• Additional Features:
o Power Good (PG) Output
o Low-Dropout (LDO) Mode
o Fixed Output Options (1): 1V, 1.8V, 2.5V,
3V, 3.3V, 3.8V, or 5V
o Hiccup Over-Current Protection (OCP)
o Available in a QFN-12 (2mmx3mm) or
QFN-12 (3mmx4mm) Package
o Available in a Wettable Flank Package
o Available in AEC-Q100 Grade 1
APPLICATIONS
• Automotive Infotainment
• Automotive Clusters
• Advanced Driver Assistance Systems
(ADAS)
• Industrial Power Systems
