LMR36510 Series

SIMPLE SWITCHER® 4.2-V to 65-V, 1-A synchronous step-down converter with 26-uA IQ

Catalog

SIMPLE SWITCHER® 4.2-V to 65-V, 1-A synchronous step-down converter with 26-uA IQ

Part	Function	Number of Outputs	Package / Case [y]	Package / Case [x]	Package / Case	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Output Type	Voltage - Input (Max) [Max]	Mounting Type	Topology	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Current - Output	Synchronous Rectifier	Output Configuration	Frequency - Switching	Voltage - Output (Min/Fixed)
Texas Instruments LMR36510FADDAR	Step-Down	1	3.9 mm	0.154 in	8-PowerSOIC	8-SO PowerPad	-40 °C	125 ¯C	Adjustable	65 V	Surface Mount	Buck	61.75 V	4.2 V	1 A		Positive	400 kHz	1 V
Texas Instruments LMR36510ADDAR	Step-Down	1	3.9 mm	0.154 in	8-PowerSOIC	8-SO PowerPad	-40 °C	125 ¯C	Adjustable	65 V	Surface Mount	Buck	61.75 V	4.2 V	1 A		Positive	400 kHz	1 V

Catalog

SIMPLE SWITCHER® 4.2-V to 65-V, 1-A synchronous step-down converter with 26-uA IQ

Key Features

• Designed for reliable and rugged applicationsInput transient protection up to 70 VProtection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protectionWell-suited for scalable industrial power suppliesPin compatible with:LMR36520(65 V, 2 A)LMR33610/LMR33620/LMR33630/LMR33640(36 V, 1 A, 2 A, 3 A, or 4 A)Internal compensation helps reduce solution size, cost and design complexity400-kHz frequencyWide conversion rangeInput voltage range: 4.2 V to 65 VOutput voltage range: 1 V to 95% of VINLow-power dissipation across load spectrum90% efficiency: 24 VIN, 5 VOUT, 1 A at 400 kHzIncreased light-load efficiency in PFM modeLow operating quiescent current of 26 µAPower-good output with filter and delayed releaseDesigned for reliable and rugged applicationsInput transient protection up to 70 VProtection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protectionWell-suited for scalable industrial power suppliesPin compatible with:LMR36520(65 V, 2 A)LMR33610/LMR33620/LMR33630/LMR33640(36 V, 1 A, 2 A, 3 A, or 4 A)Internal compensation helps reduce solution size, cost and design complexity400-kHz frequencyWide conversion rangeInput voltage range: 4.2 V to 65 VOutput voltage range: 1 V to 95% of VINLow-power dissipation across load spectrum90% efficiency: 24 VIN, 5 VOUT, 1 A at 400 kHzIncreased light-load efficiency in PFM modeLow operating quiescent current of 26 µAPower-good output with filter and delayed release

Description

The LMR36510 regulator is an easy-to-use, synchronous, step-down DC/DC SIMPLE SWITCHER converter. With integrated high-side and low-side power MOSFETs, output current up to 1 A is delivered over a wide input voltage range of 4.2 V to 65 V. The transient tolerance that goes up to 70 V reduces the solution size and cost to protect against overvoltages and meets the surge immunity requirements of IEC 61000-4-5. The LMR36510 uses peak-current mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status, eliminating the requirement for an external supervisor. Integration and internal compensation eliminates many external components and provides a pinout designed for a simple PCB layout. The feature set of the device is designed to simplify implementation for a wide range of end equipment. The LMR36510 is pin-to-pin compatible with the LMR36520 (65 V, 2 A) and LMR33610, LMR33620, LMR33630 and LMR33640 (36 V, 1 A/2 A/3 A/4 A), completing the latest family of SIMPLE SWITCHER converters. This increases the ease of use and scalability of wide Vin converters across various commonly used voltage and current ratings without having the need to redesign the board layout. As a result, the overall cost, design effort and time to market are optimized. The LMR36510 is in an 8-pin HSOIC package. The LMR36510 regulator is an easy-to-use, synchronous, step-down DC/DC SIMPLE SWITCHER converter. With integrated high-side and low-side power MOSFETs, output current up to 1 A is delivered over a wide input voltage range of 4.2 V to 65 V. The transient tolerance that goes up to 70 V reduces the solution size and cost to protect against overvoltages and meets the surge immunity requirements of IEC 61000-4-5. The LMR36510 uses peak-current mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status, eliminating the requirement for an external supervisor. Integration and internal compensation eliminates many external components and provides a pinout designed for a simple PCB layout. The feature set of the device is designed to simplify implementation for a wide range of end equipment. The LMR36510 is pin-to-pin compatible with the LMR36520 (65 V, 2 A) and LMR33610, LMR33620, LMR33630 and LMR33640 (36 V, 1 A/2 A/3 A/4 A), completing the latest family of SIMPLE SWITCHER converters. This increases the ease of use and scalability of wide Vin converters across various commonly used voltage and current ratings without having the need to redesign the board layout. As a result, the overall cost, design effort and time to market are optimized. The LMR36510 is in an 8-pin HSOIC package.