PMP9398: 3.3V @ 2A, 4.5 ~ 60V in, Buck
Summary
The PMP9398 reference design is a conducted EMI optimized 6.6W power supply design for automotive application. It features the SIMPLE SWITCHER® LM46002 synchronous buck regulator and provides a 3.3V, max 2A output. The input voltage range is 4.5V to 60V suitable for 12V automotive battery supply.
The reference design has the input EMI filter stage, and the conducted EMI is tested under the CISPR 25 automotive EMC standard. The design is compliant with the Class 5 conducted emissions standard.
The reference design has the input EMI filter stage, and the conducted EMI is tested under the CISPR 25 automotive EMC standard. The design is compliant with the Class 5 conducted emissions standard.
Specifications
| Manufacturer | Texas Instruments |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
3.3 V
|
| Current Out |
2 A
|
| Voltage In |
4.5 ~ 60 V
|
| Efficiency @ Conditions |
>85%, 13V in, 3.3V @ 0.15 ~ 1.9 A
>80%, 4.5V in, 3.3V @ 0 ~ 1.9 A >70%, 60V in, 3.3V @ 0 ~ 1.7 A |
| Voltage Out Range |
1 ~ 28 V
|
| Features |
Current Limit (Adj. or Fixed)
Power Good Output Pre-Biased Startup Short Circuit Protection Shutdown, Enable, Standby Soft Start Synchronizable Thermal Protection Voltage Tracking |
| Switching Frequency |
500 kHz
|
| Standby Current [Typical] |
2.3 µA
|
| Quiescent Current [Typical] |
7 µA
|
| Component Count + Extras |
36 + 10
|
| Internal Switch |
Yes
|
| Design Author |
Texas Instruments
|
| Application / Target Market |
Automotive
Point of Load (PoL) Power: Auxiliary Power Supply Power: Industrial Power Telecom |
| Standby Current [Maximum] |
5 µA
|
| Quiescent Current [Maximum] |
12 µA
|
| Main I.C. Base Part |
LM46002
|
| Date Created By Author | 2014-04 |
| Date Added To Library | 2015-01 |
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