TPS7A4901DRBT is a Texas Instruments TPS7A4901 +36 V, 150 mA ultralow-noise LDO in 3 × 3 mm VSON-8, 250-piece small reel — 3 V to 36 V input, adjustable 1.194 V to 33 V output, 12.7 microvolt RMS noise, 72 dB PSRR at 120 Hz, 260 mV dropout at 100 mA, enable pin, current-limit and thermal shutdown, −40 °C to +125 °C. The DRBT code is the selection point: the 3 × 3 mm VSON on 250-piece reel — prove the ultralow-noise rail and the VSON thermal layout on prototypes before committing to the 3000-piece DRBR reel. Selection advice: the T versus R suffix is purely a packing choice — same VSON-8 footprint, same silicon, so a design qualified on the DRBT moves to the DRBR for volume with no requalification. The adjustable 1.194 V reference covers any analog rail from near-1.2 V references up to 33 V sensor supplies. Against the HVSSOP DGNT: VSON wins on area, HVSSOP wins on reworkability. Evidence: TI TPS7A4901 documentation confirms VSON-8 3 × 3 mm, 250-piece reel and 1.194–33 V. Match the full TPS7A4901DRBT code.
Ordering-code highlights reviewed against official manufacturer documentation.
TPS7A49 is available in the following manufacturer order codes. They share the same TPS7A49 design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.
| Order code | Package | Packing | Key difference |
|---|---|---|---|
| TPS7A4901DGNR | MSOP-PowerPAD-8 | — | — |
| TPS7A4901DGNT | HVSSOP-8 | SMALL T&R | Same HVSSOP-8 package as TPS7A4901DGNR; this difference alone does not require PCB pad changes; factory packing is SMALL T&R, 250 per pack; TPS7A4901DGNR is LARGE T&R, 2,500 per pack. |
| TPS7A4901DRBR | VSON-8 | LARGE T&R | Package/pins: VSON (DRB), 8 pins; TPS7A4901DGNR is HVSSOP (DGN), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinout; factory packing is LARGE T&R, 3,000 per pack; TPS7A4901DGNR is LARGE T&R, 2,500 per pack. |
| TPS7A4901DRBT | VSON-8 | SMALL T&R | Package/pins: VSON (DRB), 8 pins; TPS7A4901DGNR is HVSSOP (DGN), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinout; factory packing is SMALL T&R, 250 per pack; TPS7A4901DGNR is LARGE T&R, 2,500 per pack. |
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Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
These are order-code variants of the same Texas Instruments series. They share the core design; the ordering code selects the exact configuration — TPS7A4901DGNR (MSOP-PowerPAD-8); TPS7A4901DGNT: Same HVSSOP-8 package as TPS7A4901DGNR; this difference alone does not require PCB pad changes; factory packing is SMALL T&R, 250 per pack; TPS7A4901DGNR is LARGE T&R, 2,500 per pack.; TPS7A4901DRBR: Package/pins: VSON (DRB), 8 pins; TPS7A4901DGNR is HVSSOP (DGN), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinout; factory packing is LARGE T&R, 3,000 per pack; TPS7A4901DGNR is LARGE T&R, 2,500 per pack.. TPS7A4901DRBT itself is the VSON-8 configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.
From the verified technical profile: Package code: VSON (DRB); Pin count: 8; Operating temperature: -40 to 125 °C. These are the catalog-recorded values for TPS7A4901DRBT — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.