component
TPS70251PWPR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, HTSSOP-20. 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
markdownTPS70251PWPR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · HTSSOP-20
TPS70251PWPR from Texas Instruments, in a HTSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No internal connection; leave unconnected. |
| 2 | VIN1 | power_in | Input voltage of regulator 1; the UVLO circuit keeps the internal regulators off until VIN1 reaches 2.5 V, and internal bias voltages are powered from VIN1. |
| 3 | VIN1 | power_in | Input voltage of regulator 1; the UVLO circuit keeps the internal regulators off until VIN1 reaches 2.5 V, and internal bias voltages are powered from VIN1. |
| 4 | MR | input | Manual reset input, active low, pulled up internally to VIN1 through a 6 µA pull-up current; pulling it low triggers a POR (RESET). |
| 5 | EN1 | input | Active-low enable for VOUT1; driving it high puts regulator 1 into shutdown/sleep mode. |
| 6 | EN2 | input | Active-low enable for VOUT2; driving it high puts regulator 2 into shutdown/sleep mode. |
| 7 | RESET | output | Open-drain, active-low SVS (power-on reset) output that goes low on an undervoltage condition or MR action and requires a pull-up resistor; it can be left floating if unused. |
| 8 | GND | power_in | Ground reference for the device. |
| 9 | VIN2 | power_in | Input voltage of regulator 2. |
| 10 | VIN2 | power_in | Input voltage of regulator 2. |
| 11 | NC | unconnected | No internal connection; leave unconnected. |
| 12 | VOUT2 | power_out | Output voltage of regulator 2, which supports up to 250 mA. |
| 13 | VOUT2 | power_out | Output voltage of regulator 2, which supports up to 250 mA. |
| 14 | VSENSE2/FB2 | input | Regulator 2 output voltage sense for fixed versions (connect to VOUT2 as close to the device as possible) or feedback input for the adjustable version. |
| 15 | PG2 | output | Open-drain output that goes low when VOUT2 is below 95% of its nominal regulated voltage and requires a pull-up resistor. |
| 16 | PG1 | output | Open-drain output that goes low when VOUT1 is below 95% of its nominal regulated voltage and requires a pull-up resistor. |
| 17 | VSENSE1/FB1 | input | Regulator 1 output voltage sense for fixed versions (connect to VOUT1 as close to the device as possible) or feedback input for the adjustable version. |
| 18 | VOUT1 | power_out | Output voltage of regulator 1, which supports up to 500 mA. |
| 19 | VOUT1 | power_out | Output voltage of regulator 1, which supports up to 500 mA. |
| 20 | NC | unconnected | No internal connection; leave unconnected. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-20 |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
TPS70251PWPR - Footprint:
Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm - 3D model: HTSSOP-20, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
tps70251pwpr-etched.step/tps70251pwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps70251pwpr.step/tps70251pwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
442e41a4a4622bc2, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).