TPS7A6333QPWPRQ1

@@ -0,0 +1,59 @@+# TPS7A6333QPWPRQ1++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · HTSSOP-14-EP++TPS7A6333QPWPRQ1 from Texas Instruments, in a HTSSOP-14-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VIN | power_in | Unregulated input supply, 7 V to 40 V (transients to 45 V, absolute max 45 V). Bypass to GND with a ceramic capacitor to damp line transients. |+| 2 | nRST | output | Active-low open-drain power-on reset output. Requires an external pull-up resistor to VOUT. Asserted low during startup delay and when VOUT is out of regulation. |+| 3 | NC | unconnected | No internal connection on the TPS7A6333-Q1 fixed-output variant. (This pin is FB on the adjustable TPS7A6x01-Q1 variants.) Leave floating or tie to GND. |+| 4 | GND | power_in | Device signal ground reference. Connect to the system ground plane together with the exposed PowerPAD. |+| 5 | EN | input | Chip enable, high-voltage tolerant (0 V to 40 V) input with internal pull-down. Drive high (VEN >= 4 V) to enable the regulator; tie to VIN for always-on self-bias. Sleep current <2 µA when EN is low. |+| 6 | RDELAY | output | Reset delay timer pin. Programs the power-on reset delay via an external capacitor (CDLY) from this pin to GND; leave open for the fixed ~250 µs default delay. 0 V to 5.25 V operating range. |+| 7 | VOUT | power_out | Regulated 3.3 V output, 300 mA max. Requires a low-ESR ceramic output capacitor from this pin to GND for stability. Includes short-circuit and over-current protection. |+| 8 | NC | unconnected | No internal connection. Leave floating or tie to GND. |+| 9 | WD_FLT | output | Active-low watchdog fault output (open-drain style), requires an external pull-up to VOUT. Asserted when the watchdog window is missed or violated. 0 V to 5.25 V operating range. |+| 10 | WD | input | Watchdog service (kick) input. External MCU pulses this pin within the watchdog window to prevent a fault assertion. 0 V to 5.25 V operating range. |+| 11 | NC | unconnected | No internal connection. Leave floating or tie to GND. |+| 12 | nWD_EN | input | Active-low watchdog enable input with internal pull-down. Leave floating (or drive low) to keep the watchdog enabled; drive high to disable or reinitialize the watchdog. 0 V to 5.25 V operating range. |+| 13 | NC | unconnected | No internal connection. Leave floating or tie to GND. |+| 14 | ROSC | output | Oscillator programming pin. Sets the internal oscillator frequency (and the watchdog window duration) via an external resistor from this pin to GND. Constant-voltage reference (max 7 V). |+| 15 | PAD | passive | Exposed thermal PowerPAD on the underside of the HTSSOP-14 package. Must be soldered to a ground copper pour for thermal dissipation and connected electrically to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-14-EP |+| Category | Power Management (PMIC) |+| Pins | 15 |++## Ordering variants++Same part, different packaging or reel option.++- `TPS7A6333QPWPRQ1`+- `TPS7A6333QPWPRQ1DRKR`+- `TPS7A6333QPWPRQ1DRKT`++## CAD (KiCad official)++- Symbol: `TPS7A6333QPWPRQ1`+- Footprint: `Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps7a63-q1) (None pp, sha256 `fded27fe6d72aad1`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps7a6333qpwprq1-datasheet.pdf)

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