component

NJW1933F1-AT-TE2

Public Made by Adom

by adom

Nisshinbo Micro Devices Inc. AC-DC Controllers & Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsnjw1933f1-at-te2factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 12d ago
viewers njw1933f1-at-te2: viewers · Ray 12d ago
njw1933f1-at-te2-etched.glb Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2-etched.step njw1933f1-at-te2: factory component page (tier=lcsc) · Ray 12d ago
njw1933f1-at-te2-hero.glb njw1933f1-at-te2: hero GLB from the etched model (keeps the MPN mark) · Ray 12d ago
njw1933f1-at-te2-hero.overlay.json Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2.glb Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2.kicad_mod Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2.kicad_sym Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2.lbr Publish 0.1.0 · Ray 12d ago
njw1933f1-at-te2.step Publish 0.1.0 · Ray 12d ago
package.json Publish 0.1.0 · Ray 12d ago
page.json Set visibility: public · Ray 12d ago
README.md Publish 0.1.0 · Ray 12d ago

NJW1933F1-AT-TE2

Nisshinbo Micro Devices Inc. · AC-DC Controllers & Regulators · SOT-23-6

NJW1933F1-AT-TE2 from Nisshinbo Micro Devices Inc., in a SOT-23-6. 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 N.C. unconnected Unused pin, not connected internally.
2 GND power_in Ground pin.
3 FB input Output voltage detecting pin; connect the output voltage through a resistor divider tap so the FB pin voltage becomes 1.245V (max rating 6V).
4 SHDN input Standby control pin; normal operation at high level (2.3V min to VIN), standby mode at low level (0.3V max) or open.
5 VIN power_in Power supply pin for power line; operating range 4.5V to 40V (45V absolute max).
6 SW output Switch output pin of the power MOSFET; switching current limit 0.8A min, 1.5A max.

Key specifications

Parameter Value
Manufacturer Nisshinbo Micro Devices Inc.
Package SOT-23-6
Category Power Management ICs
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
ON Threshold Voltage VT_ON 4.2 4.35 4.5 V VIN = L→H 4
OFF Threshold Voltage VT_OFF 4.1 4.25 4.4 V VIN = H→L 4
Oscillation Frequency1 fOSC1 400 500 600 kHz VFB=1.1V 4
Feedback Voltage VB 1.245 V ±1.6% (Ta=-40 to 105°C) 4
Feedback Voltage tolerance VB -1.6 1.6 % 4
FB Pin Bias Current IB 10 100 nA VFB=1.3V 4
Maximum Duty Cycle MAXDUTY 88 94 % VFB=1.1V 4
Minimum ON Time tON_min 100 160 ns 4
Switching Current Limit ILIM 0.8 1.1 1.5 A 4
Output ON Resistance RON 1 1.6 Ω ISW=400mA 4
Switch Leakage Current ILEAK 1 µA VSHDN = 0V, VIN=45V, VSW=0V 4
SHDN ON Control Voltage VSHDN(ON) 2.3 V VSHDN = L→H; max VIN 4
SHDN OFF Control Voltage VSHDN(OFF) 0 0.3 V VSHDN = H→L 4
SHDN Bias Current1 ISHDN_BIAS1 5 10 µA VSHDN = 2.3V 4
SHDN Bias Current2 ISHDN_BIAS2 0.01 0.1 µA VSHDN = 0V 4
Quiescent Current1 IDD1 1.6 2.5 mA Not Switching, VFB=1.3V 4
Quiescent Current2 IDD2 2.2 3.2 mA No Load, VFB=1.1V 4
Quiescent Current in SHDN IDD_SHDN 1 µA VSHDN = 0V 4
Input Voltage VIN 4.5 40 V Ta=25ºC 3
Input Voltage VIN -0.3 45 V Ta=25°C 3
VIN-SW pin voltage VV-SW -0.3 45 V Ta=25°C 3
SHDN Voltage VSHDN -0.3 45 V Ta=25°C 3
Feedback Pin Voltage VFB -0.3 6 V Ta=25°C 3
Power Dissipation (2 layers) PD 510 mW 2-layer glass epoxy board (*1) 3
Power Dissipation (4 layers) PD 710 mW 4-layer glass epoxy board (*2) 3
Junction Temperature Tj -40 150 °C 3
Operating Temperature Topr -40 105 °C 3
Storage Temperature Tstg -50 150 °C 3
Junction-to-ambient thermal resistance (2 layers) θja 245 °C/W 2-layer board (*3) 5
Junction-to-ambient thermal resistance (4 layers) θja 175 °C/W 4-layer board (*4) 5
Junction-to-top characterization parameter (2 layers) ψjt 70 °C/W 2-layer board (*3) 5
Junction-to-top characterization parameter (4 layers) ψjt 60 °C/W 4-layer board (*4) 5
Hysteresis Width VHYS 100 mV 4
Oscillation Frequency2 fOSC2 80 kHz VFB=0V 4

CAD (KiCad official)

  • Symbol: NJW1933F1-AT-TE2
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: njw1933f1-at-te2-etched.step / njw1933f1-at-te2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); njw1933f1-at-te2.step / njw1933f1-at-te2.glb are the bare package body.

Provenance

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

  • Datasheet: Nisshinbo Micro Devices Inc. datasheet (21 pp, sha256 45f2a81ec16ce27e, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF