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R1172N331D-TR-FE
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Nisshinbo Micro Devices Inc Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. 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
markdownR1172N331D-TR-FE
Nisshinbo Micro Devices Inc · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
R1172N331D-TR-FE from Nisshinbo Micro Devices Inc, in a SOT-23-5. 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 | VOUT | power_out | Voltage regulator output pin; the absolute maximum output voltage is −0.3 V to VIN+0.3 V. |
| 2 | GND | power_in | Ground pin. |
| 3 | VDD | power_in | Input pin; the input voltage range is 1.4 V to 6.0 V, with an absolute maximum input voltage of 6.5 V. |
| 4 | NC | unconnected | No connection. |
| 5 | CE | input | Chip enable pin; for the D option ("H" active with auto discharge) it is active high, with VCEH minimum 1.0 V and VCEL maximum 0.4 V, and an absolute input range of −0.3 V to 6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nisshinbo Micro Devices Inc |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
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 | 1.4 | 6 | V | 5 | ||
| Supply Current | ISS | 60 | 100 | μA | VIN−VOUT=1.0V, VIN=VCE, IOUT=0A | 6 | |
| Standby Current | Istandby | 0.1 | 1 | μA | VIN=6.0V, VCE=0V | 6 | |
| Output Voltage (multiplier of nominal, 3.3V type, VOUT>1.5V) | VOUT | 0.98 | 1.02 | × | VIN−VOUT=1.0V, IOUT=100mA | 5 | |
| Load Regulation | ΔVOUT/ΔIOUT | -15 | 15 | 30 | mV | VIN−VOUT=0.3V, 1mA<=IOUT<=300mA, If VOUT<=1.1V, then VIN=1.4V | 5 |
| Load Regulation (1A) | ΔVOUT/ΔIOUT | 50 | mV | VIN−VOUT=0.3V, 1mA<=IOUT<=1A, If VOUT<=1.1V, then VIN=1.7V | 5 | ||
| Line Regulation | ΔVOUT/ΔVIN | 0.05 | 0.2 | %/V | IOUT=100mA, VOUT+0.5V<=VIN<=6.0V | 5 | |
| Ripple Rejection | RR | 70 | dB | f=1kHz (VOUT<=4.0V), Ripple 0.5Vp-p, VIN−VOUT=1.0V, IOUT=100mA | 5 | ||
| Output Voltage Temperature Coefficient | ΔVOUT/ΔTopt | -100 | 100 | ppm/°C | IOUT=100mA, −40°C<=Topt<=85°C | 5 | |
| Output Current | ILIM | 1 | A | VIN−VOUT=1.0V | 5 | ||
| Short Current Limit | ISC | 250 | mA | VOUT=0V | 5 | ||
| Pull-down Resistance for CE pin | RPD | 1.9 | 5 | 15 | MΩ | 6 | |
| CE Input Voltage H | VCEH | 1 | 6 | V | 6 | ||
| CE Input Voltage L | VCEL | 0 | 0.4 | V | 6 | ||
| Thermal Shutdown Temperature | TTSD | 150 | °C | Junction Temperature | 6 | ||
| Thermal Shutdown Released Temperature | TTSR | 120 | °C | Junction Temperature | 6 | ||
| Output Noise | en | 30 | μVrms | BW=10Hz to 100kHz | 6 | ||
| Dropout Voltage at 300mA | VDIF | 0.05 | 0.1 | V | 2.6 <= VOUT, IOUT=300mA | 7 | |
| Dropout Voltage at 1A | VDIF | 0.18 | V | 2.6 <= VOUT, IOUT=1A | 7 | ||
| Input Voltage | VIN | 6.5 | V | 4 | |||
| CE Input Voltage (CE or CE input pin) | VCE | -0.3 | 6.5 | V | 4 | ||
| Output Voltage | VOUT | -0.3 | V | Maximum printed as VIN+0.3 | 4 | ||
| Power Dissipation (SOT-23-5) | PD | 420 | mW | 4 | |||
| Operating Temperature Range | Topt | -40 | 85 | °C | 4 | ||
| Storage Temperature Range | Tstg | -55 | 125 | °C | 4 |
CAD (KiCad official)
- Symbol:
R1172N331D-TR-FE - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
r1172n331d-tr-fe-etched.step/r1172n331d-tr-fe-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);r1172n331d-tr-fe.step/r1172n331d-tr-fe.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nisshinbo Micro Devices Inc datasheet (25 pp, sha256
6d74226e1f4dbde7, retrieved 2026-10-20, tier: lcsc) - 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).