Manufacturer Part Number
LM1770UMF
Manufacturer
Texas Instruments
Introduction
The LM1770UMF is a high-performance, current mode, DC-DC switching controller that operates at frequencies up to 1 MHz.
Product Features and Performance
Operates at switching frequencies up to 1 MHz
Integrated high-side and low-side MOSFET drivers
Current mode control for easy loop compensation
Integrated soft-start and undervoltage lockout
Low quiescent current of 100 μA
Product Advantages
High-efficiency power conversion
Small solution size with integrated power MOSFETs
Excellent transient response
Easy to use with minimal external components
Key Technical Parameters
Operating Voltage: 2.8V to 5.5V
Output Configuration: Positive, Synchronous Rectifier
Switching Frequency: 100 kHz to 1 MHz
Topology: Buck (Step-Down)
Quality and Safety Features
Operating Temperature: -40°C to 125°C
Robust overcurrent and thermal protection
Compatibility
The LM1770UMF is compatible with a wide range of electronic devices and systems that require efficient, high-performance power conversion.
Application Areas
Portable electronics
Industrial control systems
Telecommunications equipment
Automotive electronics
Product Lifecycle
The LM1770UMF is an active and widely used product from Texas Instruments. Replacements and upgrades may be available, but the product is not nearing discontinuation.
Key Reasons to Choose the LM1770UMF
High-frequency operation for compact solution size
Excellent efficiency and transient response
Integrated power MOSFETs for simplified design
Robust protection features for reliable operation
Wide operating temperature range for versatile applications
LM1770TMFXNS