ZHCSES0C March 2016 – December 2022 LM5165-Q1
PRODUCTION DATA
The target full-load efficiency is 92% based on a nominal input voltage of 36 V and an output voltage of 15 V. The input voltage operating range is 24 V to 48 V, but transients as high as 65 V are possible in the application. UVLO turnon and turnoff are set at 19 V and 17 V, respectively. The LM5165-Q1 switching frequency is set at approximately 600 kHz by resistor RRT of 143 kΩ. The output voltage soft-start time is 6 ms. The required components are listed in Table 8-5. The component selection procedure for this COT design is quite similar to that of Design 1, see Figure 8-1.
| REF DES | QTY | SPECIFICATION | VENDOR | PART NUMBER |
|---|---|---|---|---|
| CIN | 1 | 1 μF, 100 V, X7R, 1206 ceramic | AVX | 12061C105KAT2A |
| COUT | 1 | 10 μF, 25 V, X7R, 1206 ceramic | Taiyo Yuden | TMK316B7106KL-TD |
| LF | 1 | 150 μH ±20%, 0.29 A, 0.86 Ω typical DCR, 4.8 × 4.8 × 2.9 mm | Coilcraft | LPS5030-154MLC |
| RESR | 1 | 2.2 Ω, 5%, 0402 | Std | Std |
| RRT | 1 | 143 kΩ, 1%, 0402 | Std | Std |
| RFB1 | 1 | 499 kΩ, 1%, 0402 | Std | Std |
| RFB2 | 1 | 44.2 kΩ, 1%, 0402 | Std | Std |
| RUV1 | 1 | 10 MΩ, 1%, 0603 | Std | Std |
| RUV2 | 1 | 681 kΩ, 1%, 0402 | Std | Std |
| RHYS | 1 | 40.2 kΩ, 1%, 0402 | Std | Std |
| CFF | 1 | 10 pF, 10 V, X7R, 0402 ceramic | Std | Std |
| CSS | 1 | 47 nF, 10 V, X7R, 0402 ceramic | Std | Std |
| U1 | 1 | LM5165-Q1 Synchronous Buck Converter, VSON-10, 3 mm × 3 mm | TI | LM5165QDRCRQ1 |