component
UCD8220QPWPRQ1
Public Made by Adomby adom
Texas Instruments DC-DC Controllers, 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
markdownUCD8220QPWPRQ1
Texas Instruments · DC-DC Controllers · HTSSOP-16-EP
UCD8220QPWPRQ1 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 | NC | unconnected | No internal connection. |
| 2 | CLK | input | Clock input carrying the operating frequency and maximum duty-cycle limit; a high-impedance digital input accepting 3.3-V logic signals up to 2 MHz with an internal Schmitt trigger. |
| 3 | 3V3 | power_out | Regulated 3.3-V rail from the onboard linear regulator, capable of sourcing up to 10 mA, with a 0.22-μF ceramic capacitor to analog ground. |
| 4 | ISET | input | Programs the current that sets the slope compensation in peak current-mode control or the internal capacitor charging in voltage-mode control. |
| 5 | AGND | power_in | Analog ground return for the control circuitry, to which the VDD bypass capacitor returns. |
| 6 | CTRL | input | Error feedback voltage input from the external error amplifier, multiplied by 0.5 and routed to the negative input of the PWM comparator. |
| 7 | CLF | output | Current-limit flag that goes high when CS exceeds ILIM minus 25 mV, forcing the output driver low, and stays latched high until the next rising edge on CLK; also used for start-up handshaking. |
| 8 | ILIM | input | Current-limit threshold set pin, settable from 0.25 V to 1 V, with a default of 0.5 V when left open. |
| 9 | CS | input | Current-sense input to a fast current-limit comparator that provides cycle-by-cycle current limiting to protect the power stage. |
| 10 | PGND | power_in | Power ground return, to be connected close to the source of the power MOSFET. |
| 11 | OUT2 | output | High-current TrueDrive integrated-circuit driver output rated for ±4 A gate current. |
| 12 | OUT1 | output | High-current TrueDrive integrated-circuit driver output rated for ±4 A gate current. |
| 13 | PVDD | power_in | Supply for the output drivers, not connected internally to VDD, with its bypass capacitor returned to PGND; recommended supply range 4.5 V to 15.5 V. |
| 14 | VDD | power_in | Supply input for the control circuitry, recommended 4.5 V to 15.5 V, to be bypassed with at least 4.7 μF returned to AGND. |
| 15 | NC | unconnected | No internal connection. |
| 16 | NC | unconnected | No internal connection. |
| 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-EP |
| Category | Power Supply Chip |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
UCD8220QPWPRQ1 - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
ucd8220qpwprq1-etched.step/ucd8220qpwprq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucd8220qpwprq1.step/ucd8220qpwprq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
395d49e6716ba2ce, 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).