Overview
The Texas Instruments LM2611AMF/NOPB is a highly efficient PWM controller designed for DC-DC conversion. This device operates as a buck-boost converter, utilizing a single inductor to switch between step-down and step-up functions. It is particularly suited for battery-powered products, including those using two-cell and three-cell alkaline batteries, NiCd or NiMH batteries, or single-cell Lithium batteries. This makes it ideal for use in cellular phones and other handheld devices.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Maximum Switching Frequency | 1.4 MHz (1400 kHz) |
| Input Voltage Range | 2.7 V to 14 V |
| Output Voltage Range | -1.23 V to -22 V |
| Output Current | 900 mA |
| Number of Outputs | 1 |
| Topology | Cuk (Inverting) |
| Package Type | SOT-23-5 |
| Pin Count | 5 |
| Dimensions | 2.92 x 1.6 x 1.02 mm |
| Operating Temperature Range | -40 °C to +125 °C |
| Mounting Type | Surface Mount |
Key Features
- High efficiency buck-boost converter with automatic transmission between step-down and step-up functions.
- Single inductor design for DC-DC conversion.
- Adjustable output voltage.
- Current mode PWM controller.
- Compact SOT-23-5 package.
- Wide operating temperature range from -40 °C to +125 °C.
Applications
- Battery-powered products, including cellular phones and other handheld devices.
- Devices using two-cell and three-cell alkaline batteries, NiCd or NiMH batteries, or single-cell Lithium batteries.
- Any application requiring efficient step-down and step-up DC-DC conversion.
Q & A
- What is the maximum switching frequency of the LM2611AMF/NOPB?
The maximum switching frequency is 1.4 MHz (1400 kHz).
- What is the input voltage range for the LM2611AMF/NOPB?
The input voltage range is from 2.7 V to 14 V.
- What is the output voltage range of the LM2611AMF/NOPB?
The output voltage range is from -1.23 V to -22 V.
- What is the maximum output current of the LM2611AMF/NOPB?
The maximum output current is 900 mA.
- What type of topology does the LM2611AMF/NOPB use?
The LM2611AMF/NOPB uses a Cuk (inverting) topology.
- What is the package type of the LM2611AMF/NOPB?
The package type is SOT-23-5.
- What are the dimensions of the LM2611AMF/NOPB package?
The dimensions are 2.92 x 1.6 x 1.02 mm.
- What is the operating temperature range of the LM2611AMF/NOPB?
The operating temperature range is from -40 °C to +125 °C.
- What type of mounting does the LM2611AMF/NOPB use?
The LM2611AMF/NOPB uses surface mount technology.
- What are some common applications for the LM2611AMF/NOPB?
Common applications include battery-powered products such as cellular phones and other handheld devices.
