Texas Instruments
Automotive 500 mA adjustable low-IQ, high-PSRR LDO with power good and active discharge, 3 x 3 mm VSON-8 wettable flank
The Texas Instruments TPS74501PQWDRBRQ1 is the adjustable-output, active-discharge version of the TPS745-Q1 automotive LDO, in a 3 x 3 mm VSON-8 package with wettable flanks for automated optical inspection. It accepts 1.5 V to 6.0 V input, delivers 500 mA with 25 µA typical quiescent current and adds an open-drain power-good output, enable, foldback current limit and thermal shutdown. It is used for post-regulation and power sequencing in ADAS cameras, infotainment and body electronics. Lead times on automotive TI regulators remain extended; Cerametronics helps buyers locate traceable stock.
Key Specifications
Verify against the original datasheet before quoting.
| Output Voltage / Current | Adjustable 0.55 V to 5.5 V (01 = adjustable); 500 mA |
|---|---|
| Input Voltage Range | 1.5 V to 6.0 V |
| Dropout Voltage | 160 mV max at 500 mA (VOUT 3.3 V to 5.5 V) |
| IQ / Accuracy / PSRR | 25 µA typ IQ; ±1.5% max over temperature; 57 dB typ PSRR at 1 kHz |
| Features | Open-drain power good (150 µs delay), active output discharge (P), enable, foldback current limit, UVLO, thermal shutdown |
| Qualification / Package | AEC-Q100 Grade 1 (-40 to +125 °C ambient, TJ -40 to +150 °C); VSON-8 (DRB) 3 x 3 mm, wettable flanks (W) |
Market Status
Extended Lead Time – Quote on Request Factory lead time is currently around 26 weeks.
Quality & Traceability
Cerametronics is ISO 9001 certified and products are RoHS compliant, with counterfeit screening and full traceability on every shipment. A Certificate of Conformance is available on request. For allocation-sensitive or high-risk lots, independent third-party lab verification can be arranged — just flag it on your RFQ. Any lot that fails incoming inspection is quarantined and never shipped.
FAQ
What does each part of TPS74501PQWDRBRQ1 mean?
Per the TI datasheet: 01 = adjustable output, P = active output discharge, Q = AEC-Q100 Grade 1, W = wettable-flank package, DRB = 8-pin VSON 3 x 3 mm, R = 3,000-piece reel, Q1 = automotive.
Can a fixed-output TPS745-Q1 replace the adjustable version?
Yes, if the board is reworked: the fixed versions do not use the feedback divider. The 2 x 2 mm WSON-6 (DRV) version has a different footprint, so it is not a drop-in for the DRB package.
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