Overview
The LM3242TMX/NOPB is a 6-MHz, 750-mA miniature adjustable step-down DC-DC converter manufactured by Texas Instruments. This device is designed to step down an input voltage ranging from 2.7 V to 5.5 V to an adjustable output voltage from 0.4 V to 3.6 V. It is particularly suited for applications requiring high efficiency and minimal RF interference, making it ideal for use in various electronic systems, including those with medium-to-heavy load requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage Range | 0.4 V to 3.6 V |
| Maximum Load Capability | 750 mA (up to 1 A in Bypass mode) |
| PWM Switching Frequency | 6 MHz (typical) |
| Efficiency | 95% typical at 3.9 V IN, 3.3 V OUT at 500 mA |
| Operating Temperature Range | -30°C to 90°C |
| Package Type | 9-DSBGA |
| Package Size | 1.51 mm × 1.385 mm |
Key Features
- High efficiency with up to 95% efficiency at 3.9 V IN, 3.3 V OUT at 500 mA
- Automatic ECO/PWM/Bypass mode change to optimize efficiency and minimize RF interference
- Current overload protection to ensure safe operation
- Undervoltage lock-out (UVLO) comparator to prevent operation at low input voltages
- Adjustable output voltage using a VCON analog input
- Low quiescent current in ECO mode for light loads
Applications
The LM3242TMX/NOPB is suitable for a variety of applications, including but not limited to:
- Portable electronics requiring efficient power conversion
- Wireless communication devices needing low RF interference
- Industrial control systems with adjustable voltage requirements
- Automotive systems where high efficiency and reliability are crucial
- Medical devices requiring precise voltage regulation
Q & A
- What is the input voltage range of the LM3242TMX/NOPB?
The input voltage range is from 2.7 V to 5.5 V. - What is the adjustable output voltage range of the LM3242TMX/NOPB?
The output voltage can be adjusted from 0.4 V to 3.6 V. - What is the typical PWM switching frequency of the LM3242TMX/NOPB?
The typical PWM switching frequency is 6 MHz. - What is the maximum load capability of the LM3242TMX/NOPB?
The maximum load capability is 750 mA, with up to 1 A in Bypass mode. - How does the LM3242TMX/NOPB manage efficiency at different load conditions?
The device automatically switches between ECO, PWM, and Bypass modes to optimize efficiency based on the load conditions. - What protection features does the LM3242TMX/NOPB have?
The device includes current overload protection and undervoltage lock-out (UVLO) comparator. - What is the operating temperature range of the LM3242TMX/NOPB?
The operating temperature range is from -30°C to 90°C. - What package type and size does the LM3242TMX/NOPB come in?
The device comes in a 9-DSBGA package with dimensions of 1.51 mm × 1.385 mm. - How is the output voltage adjusted on the LM3242TMX/NOPB?
The output voltage is adjusted using a VCON analog input. - What are some typical applications for the LM3242TMX/NOPB?
Typical applications include portable electronics, wireless communication devices, industrial control systems, automotive systems, and medical devices.
