Click here to ask an associate for production status of specific part numbers.
MAX17554, MAX17555
Product Highlights
Integrated 60V, 50mA, Ultra-Small,
High Efficiency, Synchronous
Step-Down DC-DC Converters
less heat since they are fully synchronous integrated
FETs DC-DC converters with high efficiency.
•
Reduces External Components and Total Cost
• No Schottky–Synchronous Operation
• Internal Control Loop Compensation
• Internal Fixed Soft-Start
•
•
Aftermarket Market Automotive
Asset tracking application is an example within the
aftermarket automotive space where the MAX17554
and MAX17555 would provide a benefit. Typically,
these units are designed to be as small as possible.
The MAX17554 and MAX17555 have integrated FETs
and internal loop compensation in delivering a small
solution size.
• Fixed Turn ON/OFF Input Voltage (MAX17554)
• All-Ceramic Capacitors, Ultra-Compact Layout
•
Reduces Number of DC-DC Regulators to Stock
• Wide 4V to 60V Input Voltage (MAX17555)
• Wide 10V to 60V Input Voltage (MAX17554)
• Fixed 3.3V (MAX17554A, MAX17555A) and 5V
(MAX17554B, MAX17555B) Output Voltage
Options
General Point of Load
General point of load applies to a switching regulator
that serves many applications and design
environments. Robustness of the power conversion is
critical to any environment. With an operating range of
-40°C to +125 °C, current limit protection, overtemperature
protection, and the ability to adhere to the CISPR32
class B emission standards, the MAX17554 and
MAX17555 deliver a small, highly efficient power
conversion in the most adverse environments.
• Adjustable Output Range from 0.8V up to 90% of
V
IN
(MAX17554C, MAX17555C)
• Deliver up to 50mA of Load Current
•
Reduced Power Dissipation
• Higher Light-Load Efficiency with Discontinuous-
Conduction Mode (DCM) Operation
• Power Loss Reduction with External Boot-Strap
Input (FB/VO) for Internal Circuitry (Fixed Output
Part Options)
Simplified Application Diagram
L1
V
IN
V
OUT
• Fixed 70kHz Switching Frequency
• 3.8µA Shutdown Current (MAX17555)
LX
IN
C
IN
C
OUT
GND
MAX17554A
•
•
Flexible Design
• Programmable EN/UV and HYST Threshold
(MAX17555)
• Open-Drain Output (RESET) for Output Status
Monitoring (MAX17555)
GND
GND
GND
GND
FB/VO
Robust Operation
• Built-in Hiccup Mode Overload Protection
• Overtemperature Protection
• CISPR32 Class B Compliant
• Wide -40°C to +125°C Ambient Operating
Temperature, -40°C to +150°C Junction
Temperature
Pin Description
TOP VIEW
+
+
IN
LX
IN
EN/UV
HYST
GND
LX
1
2
3
4
8
1
2
3
4
8
7
6
5
MAX17554A
MAX17554B
MAX17554C
MAX17555A
MAX17555B
MAX17555C
GND
GND
GND
GND
GND
7
6
5
GND
RESET
FB/VO
Key Applications
FB/VO
•
Factory Automation
Within the Factory Automation space, one key need is
the ability to generate less heat. Heat within the system
has to be managed to prevent overheating and
shutdown. The MAX17554 and MAX17555 generate
TDFN
TDFN
2mm x 2mm
2mm x 2mm
Ordering Information appears at end of data sheet.
19-101535; Rev 1; 5/22
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2022 Analog Devices, Inc. All rights reserved.
5秒后页面跳转
STM32H743技术深度剖析与应用案例探索
LM321中文资料解析：引脚功能介绍、技术特点、技术特性分析
74HC14芯片资料介绍：性能特性分析、引脚介绍
LM1875芯片手册：功放参数分析、引脚说明、电路设计要点
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，
