LM25005MH ,7-42V Wide Vin, 2.5A, Current Mode Non-Synchronous Buck Regulator 20-HTSSOP -40 to 125Connection Diagram1 20BSTVCC192PRESD3 18SWVIN4 17SWVIN165SYNC IS156ISCOMP7 14FB PGND8 13RT PGND9 12 ..
LM25005MHX , 42V, 2.5A STEP-DOWN SWITCHING REGULATOR
LM25005MHX , 42V, 2.5A STEP-DOWN SWITCHING REGULATOR
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LM25007SDX/NOPB ,9-42V Wide Vin, 0.5A, Constant On-Time Non-Synchronous Buck Regulator 8-WSON -40 to 125 SNVS401C –JANUARY 2006–REVISED FEBRUARY 2013Pin DescriptionsPin Name Description Application Infor ..
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LM25005MH
42V, 2.5A Wide Vin Step-Down Switching Regulator
BST
COMP VCC
VIN
OUT
GND
LM25005VIN
VOUT
SYNC
LM25005
www.ti.com SNVS411C –JANUARY 2006–REVISED MARCH 2013
LM25005 42V, 2.5A Step-Down Switching Regulator
Checkfor Samples: LM25005
1FEATURES DESCRIPTIONThe LM25005 switching regulator features allof the
Integrated 42V, 160mΩ N-Channel MOSFET functions necessaryto implement an efficient, high
• Ultra-Wide Input Voltage Range from 7Vto 42V voltage buck regulator usinga minimumof external
Internal Bias Regulator components. This easyto use regulator includes
42V, 160mΩ, N-channel MOSFET, with an output
• Adjustable Output Voltage from 1.225V current capabilityof 2.5 Amps. The regulator control
• 1.5% Feedback Reference Accuracy methodis based upon current mode control utilizing
• Current Mode Control with Emulated Inductor an emulated current ramp. Current mode control
Current Ramp provides inherent line voltage feed-forward, cycle-by-
cycle current limiting and easeof loop compensation.
• Single Resistor Oscillator Frequency Setting The useof an emulated control ramp reduces noise
• Oscillator Synchronization Input sensitivity of the pulse-width modulation circuit,
• Programmable Soft-Start allowing reliable control of very small duty cycles
necessary in high input voltage applications. The
• Shutdown/ Standby Input operating frequencyis programmable from 50kHz
• Wide Bandwidth Error Amplifier 500kHz. An oscillator synchronization pin allows
• Thermal Shutdown multiple LM25005 regulatorsto self-synchronizeor synchronized to an external clock. Additional
protection features include: current limit, thermal
shutdown and remote shutdown capability. The
deviceis availableina power enhanced HTSSOP
package featuring an exposed die attach padto aid
thermal dissipation.
Package HTSSOP (Exposed Pad)
Simplified Application Schematic
