# TPS70151PWPR

**Texas Instruments** · Linear Voltage Regulators (LDO) · HTSSOP-20-EP

TPS70151PWPR from Texas Instruments, in a HTSSOP-20-EP. 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 connection |
| 2 | VIN1 | power_in | Input voltage for regulator 1; internal bias voltages powered from VIN1 |
| 3 | VIN1 | power_in | Input voltage for regulator 1; internal bias voltages powered from VIN1 |
| 4 | MR1 | input | Manual reset input 1, active low, internally pulled up with 6mA current source to VIN1 |
| 5 | MR2 | input | Manual reset input 2, active low, internally pulled up with 6mA current source to VIN1 |
| 6 | EN | input | Active low enable input; high voltage shuts down the device, low voltage enables the device |
| 7 | SEQ | input | Power-up sequence control input with internal 6mA pull-up to VIN1; SEQ high or open causes VOUT2 to power up first, SEQ low causes VOUT1 to power up first |
| 8 | GND | power_in | Ground |
| 9 | VIN2 | power_in | Input voltage for regulator 2 |
| 10 | VIN2 | power_in | Input voltage for regulator 2 |
| 11 | NC | unconnected | No connection |
| 12 | VOUT2 | power_out | Output voltage of regulator 2 |
| 13 | VOUT2 | power_out | Output voltage of regulator 2 |
| 14 | VSENSE2/FB2 | input | Regulator 2 output voltage sense input for fixed configurations or feedback input for adjustable configurations |
| 15 | RESET | output | Open drain SVS/power-on reset output, active low; goes to high impedance when VOUT2 reaches 95% of regulated voltage after 120ms delay |
| 16 | PG1 | output | Open drain power good output for regulator 1; goes to high impedance when VOUT1 reaches 95% of regulated voltage, otherwise pulled low |
| 17 | VSENSE1/FB1 | input | Regulator 1 output voltage sense input for fixed configurations or feedback input for adjustable configurations |
| 18 | VOUT1 | power_out | Output voltage of regulator 1 |
| 19 | VOUT1 | power_out | Output voltage of regulator 1 |
| 20 | NC | unconnected | No connection |
| 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-EP |
| Category | Power Supply Chip |
| Pins | 21 |

## CAD (KiCad official)

- Symbol: `TPS70151PWPR`
- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`
- 3D model: HTSSOP-20-EP, 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: `tps70151pwpr-etched.step` / `tps70151pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps70151pwpr.step` / `tps70151pwpr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps701) (44 pp, sha256 `d80cbe16566ccbe6`, retrieved 2026-10-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).

[Datasheet PDF](docs/tps70151pwpr-datasheet.pdf)