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ISL85403FRZ-T13 PDF预览

ISL85403FRZ-T13

更新时间： 2024-11-15 21:22:03
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
24页 949K
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SWITCHING REGULATOR

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ISL85403FRZ-T13 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：QFN-20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.73其他特性：ALSO OPERATES IN PFM CONTROL TECHNIQUE; ADJUSTABLE MODE DOWN TO 0.8V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：40 V
最小输入电压：3 V标称输入电压：12 V
JESD-30 代码：S-PQCC-N20JESD-609代码：e3
长度：4 mm湿度敏感等级：1
功能数量：1端子数量：20
最高工作温度：105 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度：1 mm表面贴装：YES
切换器配置：BUCK-BOOST最大切换频率：500 kHz
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn) - annealed
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD宽度：4 mm
Base Number Matches：1

ISL85403FRZ-T13 数据手册

 浏览型号ISL85403FRZ-T13的Datasheet PDF文件第2页浏览型号ISL85403FRZ-T13的Datasheet PDF文件第3页浏览型号ISL85403FRZ-T13的Datasheet PDF文件第4页浏览型号ISL85403FRZ-T13的Datasheet PDF文件第5页浏览型号ISL85403FRZ-T13的Datasheet PDF文件第6页浏览型号ISL85403FRZ-T13的Datasheet PDF文件第7页 
DATASHEET  
2.5A Regulator with Integrated High-side MOSFET for  
Synchronous Buck or Boost Buck Converter  
ISL85403  
Features  
The ISL85403 is a 40V, 2.5A synchronous buck or boost buck  
controller with a high-side MOSFET and low-side driver  
integrated. In buck mode, the ISL85403 supports a wide input  
range of 3V to 40V. In boost-buck mode, the input range can  
be extended down to 2.5V and output regulation can be  
• Buck mode: input voltage range 3V to 40V (refer to “Input  
Voltage” on page 15 for more details)  
• Boost mode expands operating input voltage lower than  
2.5V (refer to “Input Voltage” on page 15 for more details)  
• Selectable forced PWM mode or PFM mode  
maintained when V drops below V , enabling sensitive  
IN OUT  
electronics to remain on in low input voltage conditions.  
• 300µA IC quiescent current (PFM, no load); 180µA input  
quiescent current (PFM, no load, V  
tied to AUXVCC)  
OUT  
The ISL85403 has a flexible selection of operation modes of  
forced PWM mode and PFM mode. In PFM mode, the  
quiescent input current is as low as 180µA (AUXVCC connected  
• Less than 5µA (MAX) shutdown input current (IC disabled)  
• Operational topologies  
- Synchronous buck  
to V  
). The load boundary between PFM and PWM can be  
OUT  
programmed to cover wide applications.  
- Non-synchronous buck  
- Two-stage boost buck  
The low-side driver can be either used to drive an external low-side  
MOSFET for a synchronous buck or left unused for a standard  
non-synchronous buck. The low-side driver can also be used to  
drive a boost converter as a preregulator followed by a buck  
controlled by the same IC, which greatly expands the operating  
input voltage range down to 2.5V or lower (Refer to “Typical  
Application Schematic III - Boost Buck Converter” on page 6).  
- Non-inverting single inductor buck boost  
• Programmable frequency from 200kHz to 2.2MHz and  
frequency synchronization capability  
• ±1% tight voltage regulation accuracy  
• Reliable overcurrent protection  
The ISL85403 offers the most robust current protections. It uses  
peak current mode control with cycle-by-cycle current limiting.  
It is implemented with frequency foldback under current limit  
condition; also, the hiccup overcurrent mode is also  
implemented to guarantee reliable operations under harsh  
short conditions.  
- Temperature compensated current sense  
- Cycle-by-cycle current limiting with frequency foldback  
- Hiccup mode for worst case short condition  
• 20 Ld 4x4 QFN package  
• Pb-free (RoHS compliant)  
The ISL85403 has comprehensive protections against various  
faults including overvoltage and over-temperature protections,  
etc.  
Applications  
• General purpose  
• 24V bus power  
Related Literature  
• AN1960, “ISL85403DEMO1Z Demonstration Board User  
Guide”  
• Battery power  
•
Point-of-load  
• UG010, “ISL85403EVAL2Z Evaluation Board User Guide”  
• Embedded processor and I/O supplies  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
6V V  
IN  
PGOOD  
EN  
V
IN  
VIN  
MODE  
SYNC  
AUXVCC  
12V V  
IN  
BOOT  
36V V  
ISL85403  
IN  
VCC  
ILIMIT  
SS  
V
OUT  
24V V  
PHASE  
LGATE  
IN  
PGND  
FB  
EXT_BOOST  
FS  
SGND  
COMP  
0.1m  
1m  
10m  
100m  
1.0  
2.5  
LOAD CURRENT (A)  
FIGURE 1. TYPICAL APPLICATION  
FIGURE 2. EFFICIENCY, SYNCHRONOUS BUCK, PFM MODE,  
5V, T = +25°C  
V
OUT  
A
March 13, 2015  
FN8631.1  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2014, 2015. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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