The LM3310 is a step-up DC/DC converter integrated with an Operational Amplifier and a gate pulse modulation switch. The boost (step-up) converter is used to generate an adjustable output voltage and features a low RDSON internal switch for maximum efficiency. The operating frequency is selectable between 660kHz and 1.28MHz allowing for the use of small external components. An external soft-start pin enables the user to tailor the soft-start time to a specific application and limit the inrush current. The Op-Amp is capable of sourcing/sinking 135mA of current (typical). The gate pulse modulation switch can operate with a VGH voltage of 5V to 30V. The LM3310 is available in a low profile 24-lead WQFN package.
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| Topology | Boost |
| Vin (min) (V) | 2.5 |
| Vin (max) (V) | 7 |
| Vout (min) (V) | 1.263 |
| Vout (max) (V) | 20 |
| Switch current limit (typ) (A) | 2 |
| Type | Converter |
| Regulated outputs (#) | 1 |
| Switching frequency (min) (kHz) | 660 |
| Switching frequency (max) (kHz) | 1280 |
| Iq (typ) (mA) | 2.1 |
| Features | Enable, Nonsynchronous rectification |
| Duty cycle (max) (%) | 91 |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| WQFN (RTW) | 24 | 16 mm² 4 x 4 |
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