All trademarks are the property of their respective owners.
DescriptionThe LM25576MH/NOPB is an easy to use buck regulator which allows design engineers to design andoptimize a robust power supply using a minimum set of components. Operating with an input voltagerange of 6 V to 42 V, the LM25576MH/NOPB delivers 3 A of continuous output current with an integrated170-m? N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture whichprovides inherent line regulation, tight load transient response, and ease of loop compensationwithout the usual limitation of low-duty cycles associated with current mode regulators. Theoperating frequency is adjustable from 50 kHz to 1 MHz to allow optimization of size andefficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557xfamily to self-synchronize or to synchronize to an external clock. The LM25576MH/NOPB ensures robustnesswith cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remoteshut-down. The device is available in a power enhanced HTSSOP-20 package featuring an exposed dieattach pad for thermal dissipation. The LM25576MH/NOPB is supported by the full suite ofWEBENCH? On-Line design tools.
Feature
- Integrated 42-V, 170-m? N-channelMOSFET
- Ultra-Wide Input Voltage Range from 6 V to 42V
- Adjustable Output Voltage as Low as 1.225 V
- 1.5% FeedbackReference Accuracy
- Operating Frequency Adjustable Between 50 kHz and 1 MHz withSingle Resistor
- Master or Slave FrequencySynchronization
- Adjustable Soft-Start
- Emulated Current ModeControl Architecture
- Wide Bandwidth ErrorAmplifier
- Built-in Protection
- HTSSOP-20EP (ExposedPad)
- Create a Custom Design Using the LM25576 With theWEBENCH? PowerDesigner
All trademarks are the property of their respective owners.
DescriptionThe LM25576 is an easy to use buck regulator which allows design engineers to design andoptimize a robust power supply using a minimum set of components. Operating with an input voltagerange of 6 V to 42 V, the LM25576 delivers 3 A of continuous output current with an integrated170-m? N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture whichprovides inherent line regulation, tight load transient response, and ease of loop compensationwithout the usual limitation of low-duty cycles associated with current mode regulators. Theoperating frequency is adjustable from 50 kHz to 1 MHz to allow optimization of size andefficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557xfamily to self-synchronize or to synchronize to an external clock. The LM25576 ensures robustnesswith cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remoteshut-down. The device is available in a power enhanced HTSSOP-20 package featuring an exposed dieattach pad for thermal dissipation. The LM25576 is supported by the full suite ofWEBENCH? On-Line design tools.
