component
TPS40071PWP
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16. 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
markdownTPS40071PWP
Texas Instruments · DC-DC Converters · HTSSOP-16
TPS40071PWP from Texas Instruments, in a HTSSOP-16. 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 | KFF | input | Resistor connected from this pin to VIN programs feed-forward voltage; internally divided by 25 to control PWM ramp slope and program undervoltage lockout; nominal voltage 400 mV. |
| 2 | RT | input | Resistor connected from this pin to ground sets internal oscillator and switching frequency. |
| 3 | LVBP | output | 4.2-V reference for internal device logic; should be bypassed with 0.1-µF ceramic capacitor; external loads less than 1 mA. |
| 4 | PGD | tri_state | Open-drain output that pulls to ground when soft start is active or when FB pin is outside 10% band around VREF. |
| 5 | SGND | power_in | Signal ground reference for the device. |
| 6 | SS | input | Soft-start programming pin; capacitor connected from this pin to ground programs soft-start time via 10-µA internal current source; voltage ramp used as second non-inverting input to error amplifier. |
| 7 | FB | input | Inverting input to error amplifier; in normal operation voltage on this pin equals internal reference voltage of 0.7 V. |
| 8 | COMP | output | Output of error amplifier and input to PWM comparator; feedback network connected from this pin to FB pin to compensate overall loop; internally clamped to 3.4 V. |
| 9 | PGND | power_in | Power ground reference for device; low-impedance path from this pin to source of lower MOSFET(s). |
| 10 | LDRV | output | Gate drive for N-channel synchronous rectifier MOSFET; switches from DBP (MOSFET on) to ground (MOSFET off); total gate charge less than 50nC recommended. |
| 11 | DBP | output | 8-V reference for gate drive of N-channel synchronous rectifier; should be bypassed to ground with 1.0-µF ceramic capacitor. |
| 12 | SW | bidirectional | Connected to switched node of converter; used for short circuit sensing, gate drive timing information, and return for high-side driver; 1.5-Ω series resistor required for protection against substrate current issues. |
| 13 | HDRV | output | Floating gate drive for high-side N-channel MOSFET; switches from BOOST (MOSFET on) to SW (MOSFET off). |
| 14 | BOOST | output | Gate drive voltage for high-side N-channel MOSFET; voltage is 8 V greater than input voltage; capacitor should be connected from this pin to SW pin. |
| 15 | VDD | power_in | Supply voltage for the device. |
| 16 | ILIM | input | Short circuit protection programming pin; sets overcurrent threshold; internal current sink sets voltage drop across external resistor connected from this pin to VDD. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
TPS40071PWP - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
tps40071pwp-etched.step/tps40071pwp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps40071pwp.step/tps40071pwp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
1aa1fb4f229414d1, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).