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TI LM25118MHE/NOPB product image
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TI LM25118MHE/NOPBRoHS

Manufacturer
TI
MPN
LM25118MHE/NOPB
LCSC Part #
C2650258
Packaging
HTSSOP-20-EP
Customer #
Key Attributes
1 Adjustable Buck-Boost HTSSOP-20-EP DC DC Switching Controllers RoHS
Datasheetpdf iconTI LM25118MHE/NOPB
In-Stock: 59
59 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.7553$ 2.76
10+$ 2.3253$ 23.25
30+$ 2.0559$ 61.68
250+$ 1.7801$ 445.03
500+$ 1.6551$ 827.55
1,000+$ 1.6016$ 1601.60
Standard Packaging250/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingHTSSOP-20-EP
Synchronous RectifierNo
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;External compensation;Built-in LDO regulator;Overcurrent Protection
Number of Channels1
TopologyBuck-Boost
Operating Voltage3V~42V
Switch tube (built-in/external)External
Output Voltage-
Operating Temperature-40℃~+125℃@(TJ)
Output Current-
Frequency - Switching500kHz
Output TypeAdjustable
FunctionBuck-Boost
Quiescent Current-
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging250
Sales UnitPiece

Introduction

AI Translation

The LM25118 wide input voltage range buck/boost switching regulator controller contains all the features needed to implement a high performance, cost-effective buck/boost regulator with a minimum number of external components. The buck/boost topology maintains a regulated output voltage when the input voltage is either below or above the output voltage, making this device ideal for automotive applications. When the input voltage is sufficiently greater than the regulated output voltage, the LM25118 operates as a buck regulator, then smoothly transitions to the corresponding buck/boost mode as the input voltage approaches the output voltage. This dual-mode approach maintains regulation over a wide input voltage range, provides optimum conversion efficiency in buck mode, and delivers a seamless output during mode transitions. The controller is easy to use and includes drivers for the high-side buck MOSFET and low-side boost MOSFET. The regulator's control method is based on current mode control with an emulated current ramp. Emulated current mode control reduces noise sensitivity in the PWM circuit for reliable control of the very small duty cycles required in high input voltage applications. Additional protection features include current limiting, thermal shutdown, and an enable input. The device is offered in a power-enhanced 20-pin HTSSOP package with an exposed die attach pad for improved thermal dissipation.

Features

AI Translation
  • Input voltage operating range: 3V to 42V
  • Emulated peak current mode control
  • Smooth transition between Buck and Boost modes
  • Switching frequency programmable up to 500kHz
  • Oscillator synchronization
  • Internal high-voltage bias regulator
  • Integrated high-side and low-side gate drivers
  • Programmable soft-start time
  • Ultra-low shutdown current enable input
  • Wide-bandwidth error amplifier
  • 1.5% feedback reference accuracy
  • Thermal shutdown
  • Package: 20-pin HTSSOP (exposed pad)
  • Create custom designs using LM25118 with WEBENCH Power Designer

Applications

AI Translation
  • Industrial buck/boost power supply