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Texas Instruments LMR36506-Q1 | Demoboard LMR36506MSCEVM
3-V to 65-V, 0.6-A buck converter optimized for size and light load efficiency
Overview
| Topology | Buck Converter |
| Input voltage | 5.5-65 V |
| Output 1 | 5 V / 0.6 A |
| IC revision | A |
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
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 16 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | – | Size3020 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length3 mm | Width3 mm | Height2 mm | – | – | Inductance6.8 µH | Performance Rated Current2.15 A | Saturation Current @ 30%3.65 A | DC Resistance168 mΩ | Self Resonant Frequency22 MHz | Operating Voltage80 V | MountSMT |