Texas Instruments LMR36506-Q1 | Demoboard LMR36506MSCEVM

Description

The LMR36506-Q1 is the industry's smallest 65 V, 0.6 A synchronous step-down DC/DC converter in 2- mm x 2-mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 3.3 V, 5 V and other adjustable output voltages. The LMR36506-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36506-Q1 helps it remain functional during a deep input voltage sag condition, making it an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36506-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36506-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36506-Q1 to an external clock. With the right resistor selection, the LMR36506-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36506-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

Features

• AEC-Q100-qualified for automotive applications:
• Device temperature grade 1: -40°C to +125°C, TA
• Functional Safety-Capable
• Documentation available to aid functional safety system design

• 80% efficiency at 1 mA

• 4 µA Iq (switching) at 24 VIN to 3.3 VOUT (fixed output option)
• Miniature solution size and low component cost
• 2-mm × 2-mm HotRod™ package with wettable flanks
• Internal compensation
• Designed for automotive applications:
• Junction temperature range -40°C to +150°C
• Pseudo-random spread spectrum compatible with CISPR 25 EMI standard
• Wide input voltage range: 3.0 V (falling threshold) to 65 V
• Adjustable, 3.3-V and 5-V fixed output voltage options available
• Synchronizable with MODE/SYNC pin variant
• Adjustable FSW: 200 kHz to 2.2 MHz with RT pin variant
• Pin compatible with LMR36503-Q1 (65 V, 300 mA)

Typical applications

• Infotainment and cluster
• Body electronics and lighting
• Advanced driver assistance systems (ADAS)

More information

• Datasheet
• IC product information