Datasheet Details
| Part number | LM3280 |
|---|---|
| Manufacturer | National Semiconductor (Texas Instruments) |
| File Size | 723.39 KB |
| Description | Adjustable Step-Down DC-DC Converter and 3 LDOs |
| Datasheet |
 LM3280 Datasheet
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General Description
The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cellular Phones.
The LM3280 incorporates three low-dropout LDO voltage regulators and one step down PWM DC-DC converter with an internal Bypass FET.
Key Features
- a separate enable pin for each output. The LM3280 is available in a 16-pin lead free micro SMD package. Features.
- 2MHz (typ. ) PWM Switching Frequency.
- Operates from a single Li-Ion cell (2.7V to 5.5V).
- Adjustable Output Voltage (0.8V to 3.6V) DC-DC.
- High-efficiency synchronous buck converter.
- 300mA Maximum load capability (PWM mode).
- 500mA Maximum load capability (Bypass mode).
- PWM, Forced and Automatic Bypass Mode.
- 3 Low-dropout and fast transient respon.