Overview
The LMZM23600V5SILR from Texas Instruments is a highly integrated, 36-V, 0.5-A step-down DC/DC power module designed for space-constrained industrial applications. This module features a wide operating input voltage range of 4 V to 36 V and offers fixed output voltage options of 3.3 V and 5 V, as well as an adjustable output voltage option ranging from 1.2 V to 15 V. The device is optimized for high performance, low quiescent current, and minimal external component requirements, making it ideal for applications where board space is limited.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4 V to 36 V | V |
| Output Voltage Options | Adjustable (1.2 V to 15 V), Fixed (3.3 V, 5 V) | V |
| Output Current | 0.5 A | A |
| Switching Frequency | 750 kHz (fixed), 1000 kHz (adjustable) | kHz |
| No-Load Supply Current | 28 µA | µA |
| Shutdown Current | 2 µA | µA |
| Package Size | 3.8 mm × 3 mm × 1.6 mm | mm |
| Junction-to-Ambient Thermal Resistance | 45 °C/W | °C/W |
| Operating Junction Temperature | -40 °C to 125 °C | °C |
Key Features
- Wide operating input voltage range of 4 V to 36 V
- Adjustable and fixed output voltage options (1.2 V to 15 V, 3.3 V, 5 V)
- High efficiency with seamless transition between PWM and PFM modes
- Low quiescent current (28 µA at no load, 2 µA in shutdown)
- Miniature 3.8-mm × 3-mm × 1.6-mm package
- Only input and output capacitors required for 5-V and 3.3-V output designs
- Power-good flag and external frequency synchronization
- Built-in control loop compensation, soft start, current limit, and UVLO
- Hiccup mode for overcurrent protection
Applications
- Sensor transmitters
- Test and measurement equipment
- Grid infrastructure
- Space-constrained applications
Q & A
- What is the input voltage range of the LMZM23600V5SILR?
The input voltage range is from 4 V to 36 V.
- What are the available output voltage options for the LMZM23600V5SILR?
The device offers adjustable output voltage (1.2 V to 15 V) and fixed output voltages of 3.3 V and 5 V.
- What is the maximum output current of the LMZM23600V5SILR?
The maximum output current is 0.5 A.
- How efficient is the LMZM23600V5SILR at typical operating conditions?
The device achieves typical efficiencies of up to 90% at 12-V input and 0.5-A output current.
- What is the package size of the LMZM23600V5SILR?
The package size is 3.8 mm × 3 mm × 1.6 mm.
- Does the LMZM23600V5SILR require external components for operation?
For 5-V and 3.3-V output designs, only input and output capacitors are required.
- What is the purpose of the MODE/SYNC pin on the LMZM23600V5SILR?
The MODE/SYNC pin allows for external frequency synchronization and mode selection between PWM and PFM modes.
- How does the LMZM23600V5SILR handle overcurrent conditions?
The device features hiccup mode operation to prevent excessive heating and power consumption under sustained output short-circuit conditions.
- What is the thermal shutdown threshold of the LMZM23600V5SILR?
The thermal shutdown rising threshold is 155 °C with a hysteresis of 15 °C.
- Can the LMZM23600V5SILR be used in safety-critical applications?
No, the device is not recommended for use in safety-critical applications without proper evaluation and validation.
