PMP8903
可提供 4.5V@5.5A 的車用系列 SEPIC 轉換器參考設計
PMP8903
概覽
In today’s start-stop systems, it is common for battery voltages to dip well below the nominal 12V rating. PMP8903 represents a very common start-stop application where that battery voltage can drop as low as 5V, and a 5V output is still needed for CAN and also as an intermediate bus. This design also features two tiny synchronous low-voltage buck regulators generating 3.3V and 1.1V from the 5V intermediate rail, contributing to an overall solution size that is very compact for space-constrained automotive environments. For an additional output voltage version of the design, see PMP8903.2
特點
- 100% duty cycle capability
- 5V to 42V Input
- 5V output at 3.25A (LM3481 output)
- 1.1V output at 2A (TLV62065)
- 3.3V output at 1A (TLV62065)
- This example design is supported with design and test files
| 輸出電壓選項 | PMP8903.1 | PMP8903.2 | PMP8903.3 |
|---|---|---|---|
| Vin (最小值) (V) | 5 | 4.5 | 4.5 |
| Vin (最大值) (V) | 42 | 5.5 | 5.5 |
| Vout (Nom) (V) | 5 | 3.3 | 1.1 |
| Iout (最大) (A) | 3.25 | 1 | 2 |
| 輸出功率 (W) | 16.25 | 3.3 | 2.2 |
| 隔離式/非隔離式 | Non-Isolated | Non-Isolated | Non-Isolated |
| 輸入類型 | DC | DC | DC |
| 拓撲結構 | Sepic- CCM | Buck- Synchronous | Buck- Synchronous |
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 測試報告 | PMP8903 Test Results | 2013/5/22 |