component
TPS40057PWPR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownTPS40057PWPR
Texas Instruments · DC-DC Converters · TSSOP-16-EP
TPS40057PWPR from Texas Instruments, in a TSSOP-16-EP. 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 | KFF | input | Voltage feedforward and UVLO threshold programming input; connect resistor to VIN to set PWM ramp slope and programmable undervoltage lockout level. |
| 2 | RT | input | Switching frequency programming input; connect resistor to ground per formula fSW = 1/(17.82e-6*RT + 17) kHz. |
| 3 | BP5 | power_out | 5V reference output (4.7-5.2V nominal); bypass to ground with 0.1-µF ceramic capacitor, maximum 1 mA external DC load. |
| 4 | SYNC | input | External clock synchronization input; frequency must be 20-30% above programmed fSW, connect to SGND for free-run operation. |
| 5 | SGND | power_in | Signal ground reference for controller logic circuits; establish single-point connection to PGND for proper grounding separation. |
| 6 | SS/SD | input | Soft-start and shutdown control input; capacitor charged at 2.3 µA, output regulation begins at 0.85V and completes at 1.55V, shutdown below 125 mV. |
| 7 | VFB | input | Inverting input to error amplifier; voltage maintained at 0.7V internal reference for closed-loop output voltage regulation. |
| 8 | COMP | output | Error amplifier output applied to PWM comparator; internally clamped above ramp peak to improve large-signal transient response. |
| 9 | PGND | power_in | Power ground reference for driver circuits; requires low-impedance path to MOSFET source for proper circuit operation. |
| 10 | LDRV | output | Synchronous rectifier N-channel gate driver output (0-10V); rise/fall times 24-96 ns with 2.2 nF load, minimum controllable pulse width 100 ns. |
| 11 | BP10 | power_out | 10V reference output (9-10.3V nominal) for synchronous rectifier gate drive; bypass with 1-µF ceramic capacitor, maximum 1 mA external DC load. |
| 12 | SW | input | Switched node sensing input monitoring VIN-SW voltage across high-side MOSFET during conduction; used for pulse-by-pulse current limit comparison. |
| 13 | HDRV | output | Floating high-side N-channel gate driver output switching between BOOST (on) and SW (off); rise/fall times 36-96 ns with 2.2 nF load. |
| 14 | BOOST | power_out | Boosted gate drive supply output (BOOST = SW + 9V nominal ±1.5V); 0.1-µF ceramic bypass capacitor to SW required for charge storage. |
| 15 | VIN | power_in | Main supply voltage input (8-40V operating range); quiescent current 1.5-3 mA with output drivers not switching and VFB ≥ 0.75V. |
| 16 | ILIM | input | Overcurrent threshold programming input; internal current sink (8.5-11.5 µA) through external resistor to VIN sets pulse-by-pulse current limit. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16-EP |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
TPS40057PWPR - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: TSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
tps40057pwpr-etched.step/tps40057pwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps40057pwpr.step/tps40057pwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
8efd3db408deb44b, 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).