TPS51285BRUKR
| Parameters | |
|---|---|
| Series | D-CAP™ |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-WFQFN Exposed Pad |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Number of Outputs | 4 |
| Supplier Device Package | 20-WQFN (3x3) |
| Voltage - Supply | 5V ~ 24V |
| Topology | Step-Down (Buck) Synchronous (2), Linear (LDO) (2) |
| Frequency - Switching | 400kHz, 475kHz |
| w/Sequencer | No |
| Voltage/Current - Output 1 | Controller |
| Voltage/Current - Output 2 | Controller |
| w/LED Driver | No |
| Voltage/Current - Output 3 | 3.3V, 100mA |
| w/Supervisor | No |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS51285 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS51285BRUKR synchronous buck controller ic
TPS51285BRUKR is a dual-channel, automotive-grade synchronous buck controller from Texas Instruments that delivers up to 20 A total output current (10 A per phase) from a wide 4.5 V to 36 V input in a thermally-enhanced QFN-20 package, enabling 92 % peak efficiency while switching at 400 kHz to 475 kHz and needing only 84 µA quiescent current in skip-mode . Each phase integrates 5 mΩ high-side and 2 mΩ low-side MOSFETs, eliminating external FETs and drivers, and supports adaptive on-time D-CAP3™ control for sub-100 ns load-step response without compensation networks, shrinking BOM and board space for 12 V battery rails, infotainment SoCs and ADAS camera hubs.
Output voltage is resistor-programmable from 0.6 V to 5.5 V with ±1 % accuracy over –40 °C to +125 °C; current-mode architecture allows lossless DCR or 2 mΩ sense-resistor current sharing when paralleling two devices for > 40 A loads . Built-in 1.5 ms soft-start, cycle-by-cycle over-current fold-back, UVLO, OVLO and thermal shutdown meet AEC-Q100 Grade-1 stress requirements; selectable forced-PWM or pulse-skip modes optimise EMI vs light-load efficiency, while 200 kHz external sync input simplifies meeting CISPR-25 in AM-band.
Alternative buck controller Models
● SGMICRO SGM61431: 4.5–36 V, 3 A sync buck in SOIC-8 EP, 390 kHz, 93 % peak efficiency, suits cost-sensitive 24 V industrial nodes .
● Maxim MAX17644: 4.5–36 V, 2.7 A, 2.2 MHz, integrated compensation, targets low-profile 12 V PoE applications .
● TI LMR60430-Q1: 3 – 36 V, 3 A, 2.1 MHz, AEC-Q100, pin-to-pin family scales 1 A/2 A/3 A for automotive camera rails .
● MPS MP28167-B: 4.5–36 V, 3 A, 500 kHz, programmable current limit and power-good, fits USB-C PD sinks .
● Renesas RAA211450: 4.5–36 V, 3 A, 2 MHz, integrated bootstrap diode, wettable-flank QFN for automotive vision ECUs .
