LM25118MH/NOPB Part Information

Details for LM25118MH/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Buy LM25118MH/NOPB Directly from Texas Instruments (8608 in stock) at $2.1120

Part Description

The LM25118 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high performance, cost efficient Buck-Boost regulator using a minimum of external components. The BuckBoost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage making it especially suitable for automotive applications. The LM25118 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy to use controller includes drivers for the high side buck MOSFET and the low side boost MOSFET. The regulator’s control method is based upon current mode control utilizing an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad to aid thermal dissipation. Table 1.

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Part Features

  • 1.5% Feedback Reference Accuracy
  • Create a Custom Design Using the LM25118 and
  • Emulated Peak Current Mode Control
  • Enable Input
  • Input Voltage Operating Range from 3 V to 42 V
  • Integrated High and Low-Side Gate Drivers
  • Internal High Voltage Bias Regulator
  • LM25118Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (-40u00b0C to 125u00b0C Operating Junction Temperature)
  • Oscillator Synchronization Capability
  • Package: HTSSOP-20 (Exposed Pad)
  • Programmable Soft-Start Time
  • Smooth Transition Between Step-Down and Step- Up Modes
  • Switching Frequency Programmable to 500 KHz
  • Thermal Shutdown
  • Ultra Low Shutdown Current
  • Wide Bandwidth Error Amplifier

Part Specifications

Supply Voltage Min 3V
Supply Voltage Max 42V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 80%
Controller IC Case Style HTSSOP
No. of Pins 20Pins
Switching Frequency 500kHz
Topology Buck-Boost
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Output Current 4A
Primary Input Voltage 42V
RoHS Compliant

Alternative Part Descriptions

  • DC-DC CONV, BUCK/BOOST, 500KHZ, HTSSOP; Supply Voltage Min:3V; Supply Voltage Max:42V; No. of Outputs:1 Output; Duty Cycle (%):80%; Controller IC Case Style:HTSSOP; No. of Pins:20Pins; Switching Frequency:500kHz; Topology:Buck-Boost;RoHS Compliant: Yes | Newark Electronics
  • 3-42V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller | Texas Instruments
  • Texas Instruments LM25118MH/NOPB DC-DC Kontrolcü Entegresi, 4A, 42 V, 575 kHz, 20-Pinli HTTSOP | RS Components TR

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