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Details for LM5118Q1MH/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC/DC CTRL BUCK-BOOST HTSSOP
LM5118Q1MH/NOPB image

LM5118Q1MH/NOPB by Texas Instruments

DC/DC CTRL BUCK-BOOST HTSSOP
Features
1.5% Feedback Reference Accuracy
Emulated Peak Current Mode Control
Enable Input Wide Bandwidth Error Amplifier
Integrated High and Low-side Gate Drivers
Internal High Voltage Bias Regulator
LM5118-Q1 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
Ultra-wide Input Voltage Range from 3 V to 75 V
Part Information
LM5118Q1MH/NOPB image
RoHS Compliant
Description
The LM5118 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 LM5118 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 regulators 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.
Specifications
Supply Voltage Min:
3V
Supply Voltage Max:
75V
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)
Alternate Descriptions
DC/DC CTRL, BUCK-BOOST, HTSSOP; Supply Voltage Min:3V; Supply Voltage Max:75V; 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 Step Up/Step Down 3V to 75V Input 20-Pin TSSOP EP Tube Avnet America
DC DC Cntrlr Single-OUT Step Up/Step Down 3V to 75V Input 20-Pin TSSOP EP Tube Avnet Europe