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TPS272C45ARHFR
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Texas Instruments Power Distribution Switches, VQFN-24(4x5). 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
markdownTPS272C45ARHFR
Texas Instruments · Power Distribution Switches · VQFN-24(4x5)
TPS272C45ARHFR from Texas Instruments, in a VQFN-24(4x5). 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 | OUT1 | output | Channel 1 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 2 | OUT1 | output | Channel 1 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 3 | OUT1 | output | Channel 1 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 4 | NC | unconnected | No connect pin; leave unconnected. |
| 5 | OUT2 | output | Channel 2 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 6 | OUT2 | output | Channel 2 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 7 | OUT2 | output | Channel 2 high-side power output, rated for up to 4.0 A continuous with one channel enabled at TAMB = 85°C (3.0 A with two channels enabled). |
| 8 | VS | power_in | Primary supply input, recommended operating range 4.5 V to 36 V (absolute maximum 60 V continuous to GND); connect through vias to a power plane together with pins 9, 23 and 24. |
| 9 | VS | power_in | Primary supply input, recommended operating range 4.5 V to 36 V (absolute maximum 60 V continuous to GND); connect through vias to a power plane together with pins 8, 23 and 24. |
| 10 | FLT | output | Open-drain output with pulldown that signals a fault on either channel (active low) in Version A; FLT pin voltage is rated -1 V to 36 V. |
| 11 | SNS | output | Analog current output proportional to the load current of the channel selected by SEL; connect a resistor to GND to convert it to a voltage, with SNS pin voltage rated -1 V to 7 V. |
| 12 | DIA_EN | input | Enables diagnostic functionality; with it held low, analog current sense, open-load and short-to-supply diagnostics are not available. Voltage rated -1 V to 36 V. |
| 13 | SEL | input | SEL = 0 routes the SNS pin to channel 1 load current or fault output; SEL = 1 routes it to channel 2. Voltage rated -1 V to 36 V. |
| 14 | LATCH | input | Sets retry behavior: LATCH = 0 gives auto-retry after faults, LATCH = 1 latches the output off after faults. Voltage rated -1 V to 36 V. |
| 15 | EN2 | input | Enables channel 2 output current; enable voltage rated -1 V to 36 V. |
| 16 | EN1 | input | Enables channel 1 output current; enable voltage rated -1 V to 36 V. |
| 17 | GND | power_in | Device ground; reverse ground current limited to -50 mA when VS < 0 V. |
| 18 | ILIMD | output | Connect RILIMD to GND to set the higher inrush current limit time duration; connecting this pin directly to GND gives a delay time of zero and a constant current limit set by the ILIM1/ILIM2 resistors. |
| 19 | VDD | power_in | Version A: connect to a low voltage supply input (3.0 V to 5.5 V recommended, 3.3 V or 5 V) for lower power dissipation; if used, the external regulator input must be derived from the same VS supply. |
| 20 | ILIM2 | output | Connect RILIM2 to GND to set the channel 2 current limit. |
| 21 | ILIM1 | output | Connect RILIM1 to GND to set the channel 1 current limit. |
| 22 | NC | unconnected | No connect pin; leave unconnected. |
| 23 | VS | power_in | Primary supply input, recommended operating range 4.5 V to 36 V (absolute maximum 60 V continuous to GND); connect through vias to a power plane together with pins 8, 9 and 24. |
| 24 | VS | power_in | Primary supply input, recommended operating range 4.5 V to 36 V (absolute maximum 60 V continuous to GND); connect through vias to a power plane together with pins 8, 9 and 23. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-24(4x5) |
| Category | Power Management (PMIC) |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
TPS272C45ARHFR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x5mm_P0.5mm_EP2.65x3.65mm - 3D model: VQFN-24(4x5) (KiCad packages3D, STEP)
- 3D model files:
tps272c45arhfr-etched.step/tps272c45arhfr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps272c45arhfr.step/tps272c45arhfr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (59 pp, sha256
1dc5a68de539923c, retrieved 2026-10-08, 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 0.3, 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).