LMR36500 Series

3-V to 65-V, 50-mA ultra-small synchronous buck converter with 6 μA IQ

Catalog

3-V to 65-V, 50-mA ultra-small synchronous buck converter with 6 μA IQ

Part	Mounting Type	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Supplier Device Package	Output Type	Voltage - Output (Max)	Output Configuration	Function	Current - Output	Voltage - Input (Max) [Max]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching [Max]	Frequency - Switching [Min]	Synchronous Rectifier	Number of Outputs	Topology	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed) [Min]
Texas Instruments LMR36500F3RPER	Surface Mount	1 V	3.3 V	9-VQFN-HR (2x2)	Adjustable (Fixed)	16 V	Positive	Step-Down	50 mA	65 V	9-PowerVFQFN	125 °C	-40 °C	2.2 MHz	200 kHz		1	Buck	3.6 V
Texas Instruments LMR36500F5RPER	Surface Mount	5 V		9-VQFN-HR (2x2)	Adjustable (Fixed)	16 V	Positive	Step-Down	50 mA	65 V	9-PowerVFQFN	125 °C	-40 °C	2.2 MHz	200 kHz		1	Buck	3.6 V	1 V

Catalog

3-V to 65-V, 50-mA ultra-small synchronous buck converter with 6 μA IQ

Key Features

• Functional Safety-CapableDocumentation available to aid functional safety system designDesigned for rugged industrial applications:Junction temperature range –40°C to +150°CInput transient capability up to 70 VWide input voltage range: 3.0 V (falling threshold) to 65 VMinimized switch node ringing to reduce EMIAdjustable and fixed output 3.3-V and 5-V voltage options availableDesigned for scalable industrial power supplies:Pin compatible withLMR36503(65 V, 300 mA) andLMR36506(65 V, 600 mA)Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variantMinimized design size and cost:Ultra-small, 2-mm × 2-mm HotRod™ packageHigh efficiency across load range with low power dissipation:Greater than 80% peak efficiency at 1 MHz (3.3-V V OUT)Functional Safety-CapableDocumentation available to aid functional safety system designDesigned for rugged industrial applications:Junction temperature range –40°C to +150°CInput transient capability up to 70 VWide input voltage range: 3.0 V (falling threshold) to 65 VMinimized switch node ringing to reduce EMIAdjustable and fixed output 3.3-V and 5-V voltage options availableDesigned for scalable industrial power supplies:Pin compatible withLMR36503(65 V, 300 mA) andLMR36506(65 V, 600 mA)Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variantMinimized design size and cost:Ultra-small, 2-mm × 2-mm HotRod™ packageHigh efficiency across load range with low power dissipation:Greater than 80% peak efficiency at 1 MHz (3.3-V V OUT)

Description

The LMR36500 is the industry smallest 65-V, 50-mA synchronous step-down DC/DC converter in 4-mm 2 HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and supports fixed, 3.3 V, 5 V and other adjustable output voltages. The LMR36500 uses a peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36500 with the right resistor selection from the RT pin to ground can be externally programmed to any desired switching frequency of operation over a wide range from 200 kHz to 2.2 MHz. The precision EN/UVLO feature allows precise control of the device during start-up and shutdown. The PGOOD flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external voltage supervisor. The compact design size and rich feature set of LMR36500 simplifies implementation for a wide range of industrial applications. The LMR36500 is the industry smallest 65-V, 50-mA synchronous step-down DC/DC converter in 4-mm 2 HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and supports fixed, 3.3 V, 5 V and other adjustable output voltages. The LMR36500 uses a peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36500 with the right resistor selection from the RT pin to ground can be externally programmed to any desired switching frequency of operation over a wide range from 200 kHz to 2.2 MHz. The precision EN/UVLO feature allows precise control of the device during start-up and shutdown. The PGOOD flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external voltage supervisor. The compact design size and rich feature set of LMR36500 simplifies implementation for a wide range of industrial applications.