LMR36503R5RPER
Active3-V TO 65-V, 0.3-A ULTRA-SMALL SYNCHRONOUS BUCK CONVERTER WITH 6 ΜA IQ
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LMR36503R5RPER
Active3-V TO 65-V, 0.3-A ULTRA-SMALL SYNCHRONOUS BUCK CONVERTER WITH 6 ΜA IQ
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Technical Specifications
Parameters and characteristics for this part
| Specification | LMR36503R5RPER |
|---|---|
| Current - Output | 300 mA |
| Frequency - Switching [Max] | 2.2 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | 9-PowerVFQFN |
| Supplier Device Package | 9-VQFN-HR (2x2) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 65 V |
| Voltage - Input (Min) [Min] | 3 V |
| Voltage - Output (Min/Fixed) | 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.69 | |
| 10 | $ 3.31 | |||
| 25 | $ 3.13 | |||
| 100 | $ 2.71 | |||
| 250 | $ 2.57 | |||
| 500 | $ 2.31 | |||
| 1000 | $ 1.95 | |||
| Digi-Reel® | 1 | $ 3.69 | ||
| 10 | $ 3.31 | |||
| 25 | $ 3.13 | |||
| 100 | $ 2.71 | |||
| 250 | $ 2.57 | |||
| 500 | $ 2.31 | |||
| 1000 | $ 1.95 | |||
| Tape & Reel (TR) | 3000 | $ 1.85 | ||
| Texas Instruments | LARGE T&R | 1 | $ 2.78 | |
| 100 | $ 2.44 | |||
| 250 | $ 1.71 | |||
| 1000 | $ 1.38 | |||
Description
General part information
LMR36503-Q1 Series
The LMR36503-Q1 is the industry’s smallest 65 V, 0.3 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 LMR36503-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 LMR36503-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 LMR36503-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 LMR36503-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503-Q1 to an external clock. With the right resistor selection, the LMR36503-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
The LMR36503-Q1 is the industry’s smallest 65 V, 0.3 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.
Documents
Technical documentation and resources
