component
RP111N331B-TR-FE
Public Made by Adomby adom
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.
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RP111N331B-TR-FE
Nisshinbo Micro Devices Inc · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
RP111N331B-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 | VDD | power_in | Input pin; the input voltage range is 1.4V to 5.25V, and the absolute maximum input voltage is 6.0V. |
| 2 | GND | power_in | Ground pin. |
| 3 | CE | input | Chip enable pin, active high ("H" active); absolute maximum CE input voltage is -0.3V to 6.0V. |
| 4 | VFB | input | Feedback pin; under normal conditions connect VOUT to VFB, or use this pin to set the output voltage as described in the Adjustable Output Voltage Setting section. |
| 5 | VOUT | power_out | Output pin; output current is rated up to 500mA, with an absolute maximum output current of 510mA. |
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 |
|---|---|---|---|---|---|---|---|
| Output Voltage (Ta=25°C, VOUT ≥ 1.8V) | VOUT | 0.992 | 1.008 | ×VOUT | Ta=25°C, VOUT ≥ 1.8V | 5 | |
| Output Voltage (-40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V) | VOUT | 0.985 | 1.015 | ×VOUT | -40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V | 5 | |
| Output Current | IOUT | 500 | mA | 5 | |||
| Load Regulation | ΔVOUT/ΔIOUT | 1 | 20 | mV | 1mA ≤ IOUT ≤ 500mA | 5 | |
| Load Transient Response (COUT=1µF, tr=tf=0.5µs) | VTRLD | -75 | 45 | mV | IOUT 1mA⇔250mA (tr=tf=0.5µs), COUT=1µF | 5 | |
| Load Transient Response (COUT=2.2µF, tr=tf=0.5µs) | VTRLD | -55 | 35 | mV | IOUT 1mA⇔250mA (tr=tf=0.5µs), COUT=2.2µF | 5 | |
| Load Transient Response (COUT=1µF, tr=tf=5.0µs) | VTRLD | -20 | 15 | mV | IOUT 1mA⇔250mA (tr=tf=5.0µs), COUT=1µF | 5 | |
| Input Transient Response | VTRLN | -1.5 | 1.5 | mV | VIN: Set VOUT+0.5V⇔Set VOUT+1.5V (tr=tf=5.0µs), VIN ≥ 1.4V, IOUT=30mA | 5 | |
| Dropout Voltage | VDIF | 0.22 | 0.32 | V | IOUT=500mA, 3.0 ≤ VOUT ≤ 3.6 | 6 | |
| Supply Current | ISS | 80 | 125 | µA | IOUT=0mA | 5 | |
| Standby Current | Istandby | 0.1 | 1 | µA | VCE=0V | 5 | |
| Line Regulation | ΔVOUT/ΔVIN | 0.02 | 0.1 | %/V | Set VOUT+0.5V ≤ VIN ≤ 5.25V, VIN ≥ 1.4V | 5 | |
| Ripple Rejection | RR | 75 | dB | f=1kHz, Ripple 0.2Vp-p, VIN=Set VOUT+1.0V, IOUT=30mA | 5 | ||
| Input Voltage | VIN | 1.4 | 5.25 | V | 5 | ||
| Output Voltage Temperature Coefficient | ΔVOUT/ΔTa | -30 | 30 | ppm | 40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V | 5 | |
| Short Current Limit | ISC | 50 | mA | VOUT=0V | 5 | ||
| CE Pull-down Current | IPD | 0.3 | 0.6 | µA | 5 | ||
| CE Input Voltage "H" | VCEH | 1 | V | 5 | |||
| CE Input Voltage "L" | VCEL | 0.4 | V | 5 | |||
| Thermal Shutdown Temperature | TTSD | 165 | °C | Junction temperature | 5 | ||
| Thermal Shutdown Released Temperature | TTSR | 100 | °C | Junction temperature | 5 | ||
| Output Noise (VOUT ≥ 1.8V) | en | 20 | µVrms | BW=10Hz~100kHz, VOUT ≥ 1.8V; printed as 20×VOUT | 5 | ||
| Input Voltage (absolute maximum) | VIN | 6 | V | 4 | |||
| CE Pin Input Voltage (absolute maximum) | VCE | -0.3 | 6 | V | CE pin | 4 | |
| Output Voltage (absolute maximum) | VOUT | -0.3 | V | Upper limit printed as VIN+0.3 | 4 | ||
| Output Current (absolute maximum) | IOUT | 510 | mA | 4 | |||
| Power Dissipation (SOT-23-5) | PD | 420 | mW | SOT-23-5 package | 4 | ||
| Operating Temperature Range | Ta | -40 | 85 | °C | 4 | ||
| Storage Temperature Range | Tstg | -55 | 125 | °C | 4 |
CAD (KiCad official)
- Symbol:
RP111N331B-TR-FE - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
rp111n331b-tr-fe-etched.step/rp111n331b-tr-fe-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rp111n331b-tr-fe.step/rp111n331b-tr-fe.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nisshinbo Micro Devices Inc datasheet (45 pp, sha256
3322fdb8e3e2dfe8, 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).
# RP111N331B-TR-FE
**Nisshinbo Micro Devices Inc** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
RP111N331B-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 | VDD | power_in | Input pin; the input voltage range is 1.4V to 5.25V, and the absolute maximum input voltage is 6.0V. |
| 2 | GND | power_in | Ground pin. |
| 3 | CE | input | Chip enable pin, active high ("H" active); absolute maximum CE input voltage is -0.3V to 6.0V. |
| 4 | VFB | input | Feedback pin; under normal conditions connect VOUT to VFB, or use this pin to set the output voltage as described in the Adjustable Output Voltage Setting section. |
| 5 | VOUT | power_out | Output pin; output current is rated up to 500mA, with an absolute maximum output current of 510mA. |
## 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage (Ta=25°C, VOUT ≥ 1.8V) | VOUT | 0.992 | | 1.008 | ×VOUT | Ta=25°C, VOUT ≥ 1.8V | 5 |
| Output Voltage (-40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V) | VOUT | 0.985 | | 1.015 | ×VOUT | -40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V | 5 |
| Output Current | IOUT | 500 | | | mA | | 5 |
| Load Regulation | ΔVOUT/ΔIOUT | | 1 | 20 | mV | 1mA ≤ IOUT ≤ 500mA | 5 |
| Load Transient Response (COUT=1µF, tr=tf=0.5µs) | VTRLD | -75 | | 45 | mV | IOUT 1mA⇔250mA (tr=tf=0.5µs), COUT=1µF | 5 |
| Load Transient Response (COUT=2.2µF, tr=tf=0.5µs) | VTRLD | -55 | | 35 | mV | IOUT 1mA⇔250mA (tr=tf=0.5µs), COUT=2.2µF | 5 |
| Load Transient Response (COUT=1µF, tr=tf=5.0µs) | VTRLD | -20 | | 15 | mV | IOUT 1mA⇔250mA (tr=tf=5.0µs), COUT=1µF | 5 |
| Input Transient Response | VTRLN | -1.5 | | 1.5 | mV | VIN: Set VOUT+0.5V⇔Set VOUT+1.5V (tr=tf=5.0µs), VIN ≥ 1.4V, IOUT=30mA | 5 |
| Dropout Voltage | VDIF | | 0.22 | 0.32 | V | IOUT=500mA, 3.0 ≤ VOUT ≤ 3.6 | 6 |
| Supply Current | ISS | | 80 | 125 | µA | IOUT=0mA | 5 |
| Standby Current | Istandby | | 0.1 | 1 | µA | VCE=0V | 5 |
| Line Regulation | ΔVOUT/ΔVIN | | 0.02 | 0.1 | %/V | Set VOUT+0.5V ≤ VIN ≤ 5.25V, VIN ≥ 1.4V | 5 |
| Ripple Rejection | RR | | 75 | | dB | f=1kHz, Ripple 0.2Vp-p, VIN=Set VOUT+1.0V, IOUT=30mA | 5 |
| Input Voltage | VIN | 1.4 | | 5.25 | V | | 5 |
| Output Voltage Temperature Coefficient | ΔVOUT/ΔTa | -30 | | 30 | ppm | 40°C ≤ Ta ≤ 85°C, VOUT ≥ 1.8V | 5 |
| Short Current Limit | ISC | | 50 | | mA | VOUT=0V | 5 |
| CE Pull-down Current | IPD | | 0.3 | 0.6 | µA | | 5 |
| CE Input Voltage "H" | VCEH | 1 | | | V | | 5 |
| CE Input Voltage "L" | VCEL | | | 0.4 | V | | 5 |
| Thermal Shutdown Temperature | TTSD | | 165 | | °C | Junction temperature | 5 |
| Thermal Shutdown Released Temperature | TTSR | | 100 | | °C | Junction temperature | 5 |
| Output Noise (VOUT ≥ 1.8V) | en | | | 20 | µVrms | BW=10Hz~100kHz, VOUT ≥ 1.8V; printed as 20×VOUT | 5 |
| Input Voltage (absolute maximum) | VIN | | | 6 | V | | 4 |
| CE Pin Input Voltage (absolute maximum) | VCE | -0.3 | | 6 | V | CE pin | 4 |
| Output Voltage (absolute maximum) | VOUT | -0.3 | | | V | Upper limit printed as VIN+0.3 | 4 |
| Output Current (absolute maximum) | IOUT | | | 510 | mA | | 4 |
| Power Dissipation (SOT-23-5) | PD | | | 420 | mW | SOT-23-5 package | 4 |
| Operating Temperature Range | Ta | -40 | | 85 | °C | | 4 |
| Storage Temperature Range | Tstg | -55 | | 125 | °C | | 4 |
## CAD (KiCad official)
- Symbol: `RP111N331B-TR-FE`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `rp111n331b-tr-fe-etched.step` / `rp111n331b-tr-fe-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rp111n331b-tr-fe.step` / `rp111n331b-tr-fe.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Nisshinbo Micro Devices Inc datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590249604823347200) (45 pp, sha256 `3322fdb8e3e2dfe8`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/rp111n331b-tr-fe-datasheet.pdf)