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Details for LM25118MH/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC-DC CONV BUCK/BOOST 500KHZ HTSSOP
LM25118MH/NOPB image

LM25118MH/NOPB by Texas Instruments

DC-DC CONV BUCK/BOOST 500KHZ HTSSOP
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 Information
LM25118MH/NOPB image
RoHS Compliant
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.
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
Alternate Descriptions
3-42V Buck-Boost Controller HTSSOP20EP RS Components
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
DC DC Cntrlr Single-OUT Boost/Buck Controller 3V to 42V Input 20-Pin TSSOP EP Rail Avnet America
DC DC Cntrlr Single-OUT Boost/Buck Controller 3V to 42V Input 20-Pin TSSOP EP Rail Avnet Europe