Catalog
65-V, 100-mA low-IQ synchronous step-down converter
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 protection 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 availableSuited 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 solution 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 protection 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 availableSuited 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 solution 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
AI
The LMR3650x is the industry smallest 65-V, 150-mA, 100-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 LMR3650x uses the peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR3650x 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 the 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 solution size and rich feature set of LMR3650x simplifies implementation for a wide range of industrial applications.
The LMR3650x is the industry smallest 65-V, 150-mA, 100-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 LMR3650x uses the peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR3650x 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 the 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 solution size and rich feature set of LMR3650x simplifies implementation for a wide range of industrial applications.
