component
TPS7A8801RTJR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS7A8801RTJR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · QFN-20-EP(4x4)
TPS7A8801RTJR from Texas Instruments, in a QFN-20-EP(4x4). 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 | IN1 | power_in | Input pin for LDO1 requiring 10 µF or greater input capacitor for robust operation. |
| 2 | IN1 | power_in | Input pin for LDO1 requiring 10 µF or greater input capacitor for robust operation. |
| 3 | GND | power_in | Device ground connected to thermal pad for thermal performance. |
| 4 | IN2 | power_in | Input pin for LDO2 requiring 10 µF or greater input capacitor for robust operation. |
| 5 | IN2 | power_in | Input pin for LDO2 requiring 10 µF or greater input capacitor for robust operation. |
| 6 | EN2 | input | Enable pin for LDO2 that activates regulator when above 1.1 V and deactivates when below 0.4 V. |
| 7 | NR/SS2 | passive | Noise reduction and soft-start capacitor connection for LDO2 that reduces output RMS noise and sets output ramp rate. |
| 8 | SS_CTRL2 | input | Soft-start control pin for LDO2 that selects normal charging (6.2 µA typ) or fast charging (100 µA typ) of noise-reduction capacitor. |
| 9 | PG2 | output | Open-drain power-good indicator pin for LDO2 that pulls low when output voltage falls below 88.9% of target voltage. |
| 10 | FB2 | input | Feedback pin for LDO2 serving as input to control loop error amplifier and sets output voltage via external resistor divider. |
| 11 | OUT2 | power_out | Regulated output 2 requiring 10 µF or greater output capacitor to GND for stability. |
| 12 | OUT2 | power_out | Regulated output 2 requiring 10 µF or greater output capacitor to GND for stability. |
| 13 | GND | power_in | Device ground connected to thermal pad for thermal performance. |
| 14 | OUT1 | power_out | Regulated output 1 requiring 10 µF or greater output capacitor to GND for stability. |
| 15 | OUT1 | power_out | Regulated output 1 requiring 10 µF or greater output capacitor to GND for stability. |
| 16 | FB1 | input | Feedback pin for LDO1 serving as input to control loop error amplifier and sets output voltage via external resistor divider. |
| 17 | PG1 | output | Open-drain power-good indicator pin for LDO1 that pulls low when output voltage falls below 88.9% of target voltage. |
| 18 | SS_CTRL1 | input | Soft-start control pin for LDO1 that selects normal charging (6.2 µA typ) or fast charging (100 µA typ) of noise-reduction capacitor. |
| 19 | NR/SS1 | passive | Noise reduction and soft-start capacitor connection for LDO1 that reduces output RMS noise and sets output ramp rate. |
| 20 | EN1 | input | Enable pin for LDO1 that activates regulator when above 1.1 V and deactivates when below 0.4 V. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-20-EP(4x4) |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
TPS7A8801RTJR - Footprint:
Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm - 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
tps7a8801rtjr-etched.step/tps7a8801rtjr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps7a8801rtjr.step/tps7a8801rtjr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
322cb027ed338f57, retrieved 2026-09-23, 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: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).