component
LM46001PWPR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16-EP. 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
markdownLM46001PWPR
Texas Instruments · DC-DC Converters · HTSSOP-16-EP
LM46001PWPR from Texas Instruments, in a HTSSOP-16-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 | SW | output | Switching output of regulator internally connected to both power MOSFETs and connected to power inductor. |
| 2 | SW | output | Switching output of regulator internally connected to both power MOSFETs and connected to power inductor. |
| 3 | CBOOT | power_out | Bootstrap capacitor connection for high-side driver requiring 470-nF capacitor connection from CBOOT to SW. |
| 4 | VCC | power_out | Internal bias supply output for bypassing with bypass capacitor to AGND; do not connect external load or short to ground during operation. |
| 5 | BIAS | power_in | Optional internal LDO supply input tied to VOUT (3.3 V to 28 V) or external 3.3 V/5 V rail with 1-10 µF bypass capacitor, or to ground if VOUT < 3.3 V; do not float. |
| 6 | SYNC | input | Clock input to synchronize switching action to external clock with proper high-speed termination; connect to ground if not used; do not float. |
| 7 | RT | input | Resistor connection to AGND to program switching frequency; leave floating for 500 kHz default switching frequency. |
| 8 | PGOOD | output | Open-drain power-good flag output requiring 10-kΩ to 100-kΩ pullup resistor to logic rail or DC voltage not exceeding 12 V. |
| 9 | FB | input | Feedback sense input connected to midpoint of feedback divider to set VOUT; do not short to ground during operation. |
| 10 | AGND | power_in | Analog ground pin serving as ground reference for internal references and logic. |
| 11 | SS/TRK | input | Soft-start control pin left floating for internal soft-start, or connected to capacitor to extend soft-start time, or connected to external voltage ramp for tracking. |
| 12 | EN | input | Enable input with High = ON and Low = OFF logic; connect to VIN, VIN through resistor divider, or external voltage/logic source; do not float. |
| 13 | VIN | power_in | Supply input pin to internal LDO and high-side power FET; connect to power supply and bypass capacitors CIN with path from VIN to high-frequency bypass CIN and PGND kept as short as possible. |
| 14 | VIN | power_in | Supply input pin to internal LDO and high-side power FET; connect to power supply and bypass capacitors CIN with path from VIN to high-frequency bypass CIN and PGND kept as short as possible. |
| 15 | PGND | power_in | Power ground pin connected internally to low-side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path to CIN kept as short as possible. |
| 16 | PGND | power_in | Power ground pin connected internally to low-side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path to CIN kept as short as possible. |
| 17 | PAD | power_in | Low-impedance connection to AGND serving as major heat dissipation path of die; must be used for heat sinking to ground plane on PCB. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16-EP |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
LM46001PWPR - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
lm46001pwpr-etched.step/lm46001pwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm46001pwpr.step/lm46001pwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (55 pp, sha256
03496a33574d38df, retrieved 2026-10-05, 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-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).