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LP3220SAB5F

Public Made by Adom

by adom

LOWPOWER DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lp3220sab5f: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lp3220sab5f-etched.fit.json lp3220sab5f: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3220sab5f-etched.glb lp3220sab5f: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3220sab5f-etched.step lp3220sab5f: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3220sab5f.glb Publish 0.1.0 · Ray
lp3220sab5f.kicad_mod Publish 0.1.0 · Ray
lp3220sab5f.kicad_sym Publish 0.1.0 · Ray
lp3220sab5f.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lp3220sab5f.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lp3220sab5f: specified limits as data (metadata.characteristics, 30 rows from the datasheet) · Ray
README.md lp3220sab5f: specified limits as data (metadata.characteristics, 30 rows from the datasheet) · Ray

LP3220SAB5F

LOWPOWER · DC-DC Converters · SOT-23-5

LP3220SAB5F from LOWPOWER, in a SOT-23-5. 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 EN input Enable pin, active high. Pull high (VEN(H) >= 1.4V) to enable the converter; pull low (VEN(L) <= 0.4V) to force the device into low-power shutdown (<1uA total input current). Input low current 1uA max at VEN=5V.
2 GND power_in Device ground. Return for internal control circuitry and the low-side synchronous rectifier MOSFET source. Must be tied to the system ground plane with low-impedance connection.
3 LX output Switch node connection to the external inductor. Connects to the drains of the internal main P-channel and synchronous N-channel power MOSFETs. Absolute max 8.0V to GND; keep trace short to minimize EMI.
4 VIN power_in Supply input, 2.2V to 5.5V (abs max 8.0V). Powers the internal control circuitry and the high-side P-channel MOSFET drain. Must be closely decoupled to GND with a 10uF or greater ceramic capacitor.
5 FB/Vout input Feedback input. On the adjustable LP3220SAB5F variant this pin senses the divided output voltage against the internal 0.6V reference (VOUT = 0.6V x (1 + R1/R2)). On fixed-voltage variants (-12/-18/-33) this pin is tied directly to VOUT for internal feedback.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LP3220SAB5F
  • LP3220SAB5F-12B5F
  • LP3220SAB5F-18B5F
  • LP3220SAB5F-33B5F

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage VIN 2.2 5.5 V 5
Output Voltage Range (LP3220SAB5F) VOUT 0.61 V 5
Feedback Threshold Voltage Accuracy VFB 0.588 0.6 0.612 V 5
Input Over Voltage Protection VIN_OVP 6.2 V 5
Input OVP Hysteresis VIN_OVPHYS 0.2 V 5
UVLO Threshold VUVLO 2 V VIN Rising 5
UVLO Hysteresis VUV-HYS 0.1 V 5
Quiescent Current IQ 70 µA 5
Shutdown Current ISHDN 1 µA VEN = GND 5
P-Channel Current Limit ILIM 2 A 5
High-Side Switch On Resistance RDS(ON)_H 300 mΩ 5
Low-Side Switch On Resistance RDS(ON)_L 200 mΩ 5
FB Leakage Current IFB 10 nA VFB = 1.0V 5
Oscillator Frequency FOSC 1.5 MHz 5
Startup Time TS 110 µs From Enable to Output Regulation 5
Over-Temperature Shutdown Threshold TSD 150 ℃ 5
Enable Threshold Low VEN(L) 0.4 V 5
Enable Threshold High VEN(H) 1.4 V 5
Input Low Current IEN 1 µA VEN = 5.0V 5
Input Voltage to GND VIN 8 V 4
LX Voltage to GND 8 V 4
Output Voltage to GND VOUT 6 V 4
Other Pin Voltage to GND 6 V 4
Maximum Junction Temperature 150 ℃ 4
Operating Ambient Temperature Range TA -40 85 ℃ 4
Maximum Soldering Temperature 260 ℃ at leads, 10 sec 4
ESD HBM (Human Body Model) 2 KV 4
ESD MM (Machine Model) 200 V 4
Maximum Power Dissipation (SOT23-5) PD 0.45 W TA=25℃ 4
Thermal Resistance (SOT23-5) θJA 250 ℃/W 4

CAD (KiCad official)

  • Symbol: LP3220SAB5F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lp3220sab5f-etched.step / lp3220sab5f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp3220sab5f.step / lp3220sab5f.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lp3220sab5f.step 85 KB You want the bare part, or you mark your own boards.
lp3220sab5f-etched.step 2.3 MB You want the part with LP3220SAB5F already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 555 faces against 102 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: LOWPOWER datasheet (11 pp, sha256 f568f91ecbf3261b, 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