Using the TPS40170 PWM Buck Controller, this power management reference design provides a regulated 5V to power 2 USB ports at 2.1A each (total 4.2A) in a small form-factor. The design has been optimized for a nominal 12V input and accepts 8-60V with TPS40170.
Form factor complies to UL 2089 and ANSI/SAE J563
Meets BC1.2 for DCP with one TPS2511 per port
Supports both USB 2.0 and 3.0 power switch requirements
TPS2511 USB power switch also offers the data line control to charge many devices
| Manufacturer | Texas Instruments |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Multi Output |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
2 Non-Isolated
|
| Voltage Out: Highest Current First |
5V, 5V
|
| Current Out |
2.1A per Channel
|
| Voltage In |
9 ~ 60 VDC
|
| Efficiency @ Conditions |
>90%, 9V in, 5V @ 0.2 ~ 4.2 A
>90%, 30V in, 5V @ 1.9 ~ 4.2 A >90%, 20V in, 5V @ 0.9 ~ 4.2 A >90%, 12V in, 5V @ 0.4 ~ 4.2 A >85%, 40V in, 5V @ 1.3 ~ 4.2 A |
| Voltage Out Range |
- Fixed
|
| Features |
LDO Regulator(s), On-Chip
Power Good Output Pre-Biased Startup Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out USB Interface Voltage Reference Voltage Tracking |
| Switching Frequency |
100 ~ 600 kHz
|
| Standby Current [Typical] |
1 µA
|
| Quiescent Current [Typical] |
- Not Given
|
| Component Count + Extras |
40 + 8
|
| Internal Switch |
No
|
| Design Author |
Texas Instruments
|
| Application / Target Market |
Automotive
Battery Chargers USB Powered Devices |
| Standby Current [Maximum] |
2.5 µA
|
| Quiescent Current [Maximum] |
4.5 mA
|
| Main I.C. Base Part |
TPS2511
TPS40170 |
| Date Created By Author | 2012-05 |
| Date Added To Library | 2014-11 |
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