Ultra-low I(Q) synchronous step-down DC/DC controller
Texas Instruments LM5149/ LM5149-Q1 Synchronous step-down DC-DC controller is an 80V, ultra-low I(Q) synchronous step-down DC/DC controller suitable for high-current, single-output applications. The controller uses a peak current mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The LM5149/ LM5149-Q1 can be set to dual-phase mode for precise current sharing and is suitable for high-current applications. If needed, the device can operate at V(IN) as low as 3.5V, almost 100%.
The LM5149/ LM5149-Q1 features two unique EMI reduction features: an active EMI filter and a dual random spread spectrum (DRSS). An active EMI filter senses any noise or ripple voltage on the DC input bus and injects a phase-out canceling signal to reduce interference. DRSS combines low frequency triangles with high frequency random modulation to mitigate low and high frequency EMI. This hybrid technology is consistent with the multi-resolution bandwidth (RBW) Settings specified in industry-standard EMC testing.
Additional features of the LM5149/ LM5149-Q1 include a maximum junction temperature operation of 150°C, user-selectable diode emulation to reduce current consumption under light load conditions, and a leak power good sign for fault reporting and output monitoring. It includes a precision enable input, monotone startup into pre-biased load, integrated V(CC) biased power regulator and bootstrap diode, internal 3ms soft startup time, and thermal shutdown protection with automatic recovery.
The TI LM5149/ LM5149-Q1 controller comes in a 3.5mm × 5.5mm thermal enhanced 24-pin VQFN package with wettable side pins for easy optical inspection during manufacturing. The LM5149-Q1 component is certified for AEC-Q100 automotive applications
I prodotti a cui potresti essere interessato
 |
3429 | SWITCH PUSH SPST-NO WHT 10MA 5V | 6456 More on Order |
 |
751 | FINGERPRINT SENSOR BIOMETRIC | 4680 More on Order |
 |
385 | SENSOR HUMID/TEMP 5V DTL 2% MOD | 17652 More on Order |
 |
3828 | 5 ETAPE LIQUID LEVEL SENSOR WITH | 5526 More on Order |
 |
1525 | SOLAR PANEL LARGE 6V 5.6W | 2358 More on Order |
 |
953 | WIRE EL FLOW EFFECT INV PINK 2M | 4662 More on Order |
 |
948 | WIRE EL FLOW EFFECT INV BLUE 2M | 8622 More on Order |
 |
585 | WIRE STARTER PK EL YLW 2.5M-8.2' | 3456 More on Order |
 |
545 | STARTER PACK EL WIRE AQUA 2.5M | 6354 More on Order |
 |
623 | PANEL ELECTROLUM EL 10X10CM AQUA | 2520 More on Order |
 |
2541 | ADDRESS LED STRIP SERIAL RGB 1M | 7560 More on Order |
 |
2762 | ADDRESS LED DISCR SER RGBW 1=10 | 8460 More on Order |
 |
2538 | ADDRESS LED STRIP SERIAL RGB 1M | 5328 More on Order |
 |
2226 | ADDRESS LED MODULE SERIAL RGB | 7272 More on Order |
 |
2969 | ADDRESS LED STRIP SERIAL RGB 1M | 8244 More on Order |
 |
4245 | FLEXIBLE RGB NEON-LIKE LED STRIP | 6408 More on Order |
 |
3860 | FLEXIBLE SILICONE LED STRIP - 1 | 7776 More on Order |
 |
3866 | FLEXIBLE SILICONE NEON-LIKE LED | 8280 More on Order |
 |
315 | LED RGB DIFF 5MM RND T/H 1=25PC | 7650 More on Order |
|
4040 | DIFFUSED BLUE INDICATOR LED - 15 | 7680 More on Order |
 |
498 | RGB BACKLIGHT NEGATIVE LCD | 8892 More on Order |
 |
2947 | LED CHARLIEPLEXED MATRIX - 9X16 | 7146 More on Order |
 |
1057 | LASER DIODE LINE 650NM 10MM DIA | 21072 More on Order |
 |
812 | BLUE 7-SEGMENT CLOCK DISPLAY | 4554 More on Order |