1 Features
1• Input Voltage Range of 4.5 V to 42 V
• Output Voltage Range of 0.8 V to 24 V
• Output Current up to 1 A
• Integrated low RDS(ON) Synchronous MOSFETs for
High Efficiency
• Up to 1 MHz Switching Frequency
• Low Shutdown IQ, 25 μA Typical
• Programmable Soft Start
• No Loop Compensation Required
• COT With ERM Architecture
• Tiny Overall Solution Reduces System Cost
• Integrated Synchronous MOSFETs Provides High
Efficiency at Low Output Voltages
• Stable with Low ESR Capacitors
• 28-Bump DSBGA Packaging
• Create a custom design using the LMR24010 with
the WEBENCH® Power Designer

2 Applications
• Point-of-Load Conversions from 5V, 12V and 24V
Rails
• Space Constrained Applications
• Industrial Distributed Power Applications
• Power Meters

3 Description
The LMR24210 synchronously rectified buck
converter features all required functions to implement
a highly efficient and cost effective buck regulator. It
is capable of supplying 1 A to loads with an output
voltage as low as 0.8 V. Dual N-channel synchronous
MOSFET switches allow a low component count, thus
reducing complexity and minimizing board size.
Different from most other COT regulators, the
LMR24210 does not rely on output capacitor ESR for
stability, and is designed to work exceptionally well
with ceramic and other very low ESR output
capacitors. It requires no loop compensation, results
in a fast load transient response and simple circuit
implementation. The operating frequency remains
nearly constant with line variations due to the inverse
relationship between the input voltage and the ontime.
The operating frequency can be externally
programmed up to 1 MHz. Protection features include
VCC under-voltage lock-out, output overvoltage
protection, thermal shutdown, and gate-drive
undervoltage lockout. The LMR24210 is available in
the small DSBGA low profile chip-scale package.