STW4511
General Description
Compared to discrete solutions, integrated power management ICs ease engineering efforts and improve time to market.
They also provide more robust and cost-optimized solutions.
The general-purpose STW451x family brings easy-to-use and proven power management design for your processor.
STW4511 enables two always on LDOs for low system quiescent current. Integrated switches are used to keep the DRAM memories supplied even in stand by mode.
Key Features
- 2 step-down DC-DC converters
- 600 mA programmable from 1.0 V to 1.5 V
- 600 mA @ 1.8 V
- Off mode control by external pin
- Integrated switch to supply DRAM in sleep mode
- 5 LDO regulators
- 250 mA programmable 1.0 V/1.2 V/1.5 V
- 150 mA programmable from 1.5 V to 3.3 V
- 2 regulators always on
- Control
- I2C interface
- Internal state machine and power control
- Battery supervisor
- Processor supply monitoring
- Processor reset control
- Thermal shutdown protection
Connection Diagram
Applications
- Portable navigation devices
- Portable media players
- Mobile phones
Supporting Documents
| Type: | Description: | File Size: | Download: |
| Datasheet | 7-channel power management unit | 515KB | download |
| Flyer | Easy to integrate power management solution - STW451X family | 1166KB | download |
