LM25118MHE/NOPB Texas Instruments - Yeehing Electronics

3-42V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller

Pricing (USD)

Quantity	Unit Price
1 — 99	4.274
100 — 249	3.485
250 — 999	2.739
1,000 +	1.63

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Controllers
RoHS	Y
Number of Outputs	1 Output
Switching Frequency	500 kHz
Duty Cycle - Max	80 %
Input Voltage	3 V to 42 V
Output Voltage	1.23 V to 38 V
Output Current	3.5 A
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C
Mounting Style	SMD/SMT
Package / Case	HTSSOP-20
Packaging	Reel
Operating Temperature Range	- 40 C to + 125 C
Series	LM25118
Brand	Texas Instruments
Development Kit	LM25118EVAL/NOPB
Operating Supply Current	4.5 mA
Product Type	Switching Controllers
Factory Pack Quantity	250
Subcategory	PMIC - Power Management ICs
Unit Weight	0.002885 oz

For more information, please refer to datasheet

Documents

LM25118MHE/NOPB Datasheet

More Information

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 Buck-Boost 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 control method of the regulator is based upon current mode control using 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, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.