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SP3232ECY-L

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by Ray

MaxLinear Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SP3232ECY-L

MaxLinear · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSSOP-16

SP3232ECY-L from MaxLinear, in a TSSOP-16. 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 C1+ passive Positive terminal of the voltage-doubler charge-pump capacitor C1 (typ. 0.1µF). Connect between C1+ (pin 1) and C1- (pin 3).
2 V+ power_out Regulated +5.5V output generated by the internal charge pump. Bypass to GND with a 0.1µF capacitor (can be returned to VCC or GND).
3 C1- passive Negative terminal of the voltage-doubler charge-pump capacitor C1 (typ. 0.1µF).
4 C2+ passive Positive terminal of the inverting charge-pump capacitor C2 (typ. 0.1µF). Connect between C2+ (pin 4) and C2- (pin 5).
5 C2- passive Negative terminal of the inverting charge-pump capacitor C2 (typ. 0.1µF).
6 V- power_out Regulated -5.5V output generated by the internal charge pump. Bypass to GND with a 0.1µF capacitor.
7 T2OUT output RS-232 driver 2 output. Inverted level-shifted output of T2IN, swinging typically ±5.4V (min ±5.0V) into 3kΩ, meeting EIA/TIA-232 levels. Short-circuit and ±15kV ESD protected.
8 R2IN input RS-232 receiver 2 input. Accepts RS-232 line levels (±15V typical range, ±25V absolute max), 5kΩ (typ) input resistance to GND, ~300mV hysteresis.
9 R2OUT output TTL/CMOS receiver 2 output. Inverted logic-level output of R2IN. VOH = VCC - 0.1V (typ) at -1.0mA; VOL ≤ 0.4V at 1.6mA.
10 T2IN input TTL/CMOS driver 2 input. Logic-level input to driver 2; VIL ≤ 0.8V, VIH ≥ 2.0V (VCC = 3.3V) or ≥ 2.4V (VCC = 5.0V). No internal pull-up - tie unused inputs to VCC or GND.
11 T1IN input TTL/CMOS driver 1 input. Logic-level input to driver 1; VIL ≤ 0.8V, VIH ≥ 2.0V (VCC = 3.3V) or ≥ 2.4V (VCC = 5.0V). No internal pull-up - tie unused inputs to VCC or GND.
12 R1OUT output TTL/CMOS receiver 1 output. Inverted logic-level output of R1IN.
13 R1IN input RS-232 receiver 1 input. Accepts RS-232 line levels (±15V typical range, ±25V absolute max), 5kΩ (typ) input resistance to GND, ~300mV hysteresis.
14 T1OUT output RS-232 driver 1 output. Inverted level-shifted output of T1IN, swinging typically ±5.4V (min ±5.0V) into 3kΩ, meeting EIA/TIA-232 levels. Short-circuit and ±15kV ESD protected.
15 GND power_in Ground reference (0V) for the device and the RS-232 signal return.
16 VCC power_in Positive supply voltage, 3.0V to 5.5V (absolute max 6.0V). Bypass to GND with a 0.1µF capacitor placed close to the pin.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package TSSOP-16
Category PMIC
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • SP3232ECY-L
  • SP3232ECY-L/TR
  • SP3232EEY-L
  • SP3232EEY-L/TR
  • SP3232ECA-L
  • SP3232ECA-L/TR
  • SP3232EEA-L
  • SP3232EEA-L/TR
  • SP3232ECN-L
  • SP3232ECN-L/TR
  • SP3232EEN-L
  • SP3232EEN-L/TR
  • SP3232ECT-L/TR
  • SP3232EET-L
  • SP3232EET-L/TR

CAD (KiCad official)

  • Symbol: SP3232ECY-L
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sp3232ecy-l.step 205 KB You want the bare part, or you mark your own boards.
sp3232ecy-l-etched.step 2.6 MB You want the part with SP3232ECY-L already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 643 faces against 255 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MaxLinear datasheet (21 pp, sha256 b228e951dd83f677, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF