component
SGM2209-ADJXN5G
Public Made by Adomby adom
SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
SGM2209-ADJXN5G
SGMICRO · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
SGM2209-ADJXN5G from SGMICRO, 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 | GND | power_in | Ground pin for the regulator. |
| 2 | VIN | power_in | Input voltage supply pin; the datasheet recommends a 2.2μF or larger ceramic capacitor from VIN to ground, placed as close as possible to the pin, and the input range is -2.7V to -24V. |
| 3 | EN | input | Enable pin: drive EN 2.0V above or below ground to turn the regulator on and drive it to ground to turn it off; connect EN to VIN for automatic startup. |
| 4 | ADJ | input | Adjustable input (adjustable version only): connect to the midpoint of an external resistor divider to set the output voltage, with the resistors placed as close as possible to this pin. |
| 5 | VOUT | power_out | Regulator output; the datasheet recommends a ceramic capacitor of 1.5μF to 10μF placed as close as possible to the VOUT pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| 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 |
|---|---|---|---|---|---|---|---|
| VIN to GND (absolute maximum) | VIN | -25 | 0.3 | V | 4 | ||
| VOUT to GND (absolute maximum, upper limit) | VOUT | 0.3 | V | lower limit printed as VIN - 0.3V | 4 | ||
| EN to GND (absolute maximum, upper limit) | EN | 5 | V | lower limit printed as VIN - 0.3V | 4 | ||
| EN to VIN (absolute maximum) | EN | -0.3 | 25 | V | 4 | ||
| ADJ to GND (absolute maximum, upper limit) | ADJ | 0.3 | V | lower limit printed as VOUT | 4 | ||
| Junction Temperature (absolute maximum) | TJ | 150 | ℃ | 4 | |||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 4 | ||
| Lead Temperature (Soldering) | 260 | ℃ | soldering, 10s | 4 | |||
| Input Voltage Range (recommended) | VIN | -2.7 | -24 | V | 4 | ||
| Operating Junction Temperature Range (recommended) | TJ | -40 | 125 | ℃ | 4 | ||
| Input Capacitance, CIN (recommended) | CIN | 1.5 | μF | MIN | 4 | ||
| Output Capacitance, COUT (recommended) | COUT | 1.5 | 10 | μF | 4 | ||
| Input Voltage Range | VIN | -2.7 | -24 | V | IOUT = -250mA, +25℃ | 6 | |
| Input Voltage Range | VIN | -3 | -24 | V | IOUT = -350mA, +25℃ | 6 | |
| Input Voltage Range | VIN | -3.3 | -24 | V | IOUT = -500mA, +25℃ | 6 | |
| Under-Voltage Lockout Threshold, VIN falling | VUVLO | -2.42 | -2.5 | V | VIN falling, -40℃ to +125℃ | 6 | |
| Under-Voltage Lockout Threshold, VIN rising | VUVLO | -2.24 | -2.33 | V | VIN rising, -40℃ to +125℃ | 6 | |
| Operating Supply Current | IGND | -42 | -83 | µA | IOUT = 0µA, -40℃ to +125℃ | 6 | |
| Operating Supply Current | IGND | -1.2 | -2.1 | mA | IOUT = -500mA, -40℃ to +125℃ | 6 | |
| Shutdown Current | ISHDN | -1.1 | -3 | µA | VEN = GND, -40℃ to +125℃ | 6 | |
| Shutdown Current | ISHDN | -1.2 | -10 | µA | VEN = GND, VIN = -24V, -40℃ to +125℃ | 6 | |
| ADJ Pin Input Bias Current | IADJ | -3.5 | 3.5 | nA | VADJ = -1.3V, VIN = -2.7V to -24V, -40℃ to +125℃ | 6 | |
| Output Voltage Accuracy | VOUT | -1 | 1 | % | IOUT = -10mA, +25℃ | 6 | |
| Output Voltage Accuracy | VOUT | -1.5 | 1.5 | % | VIN = (VOUT(NOM) - 0.5V) to -24V, IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 | |
| Feedback Voltage | VADJ | -1.188 | -1.2 | -1.212 | V | IOUT = -10mA, +25℃ | 6 |
| Feedback Voltage | VADJ | -1.182 | -1.218 | V | VIN = (VOUT(NOM) - 0.5V) to -24V, IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 | |
| Line Regulation | ΔVOUT/ΔVIN | 0.001 | 0.03 | %/V | VIN = (VOUT(NOM) - 0.5V) to -24V, -40℃ to +125℃ | 6 | |
| Load Regulation | ΔVOUT/VOUT | 0.03 | 0.8 | % | IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 | |
| Output Current Limit | ILIM | -0.68 | -1.05 | A | VIN = MIN(VOUT(NOM) - 1V, -4V), +25℃ | 6 | |
| Positive Enable High-Level Voltage | VEN(+HI) | 1.22 | V | -40℃ to +125℃ | 7 | ||
| Positive Enable Low-Level Voltage | VEN(+LO) | 0.3 | V | -40℃ to +125℃ | 7 | ||
| Negative Enable High-Level Voltage | VEN(-HI) | -2 | V | -40℃ to +125℃ | 7 | ||
| Negative Enable Low-Level Voltage | VEN(-LO) | -0.55 | V | -40℃ to +125℃ | 7 | ||
| EN Positive Input Current | IEN_P | 0.9 | 3 | µA | VEN = 5V, VIN = -19V, -40℃ to +125℃ | 7 | |
| EN Negative Input Current | IEN_N | -0.1 | -1 | µA | VEN = -24V, VIN = -24V, -40℃ to +125℃ | 7 | |
| Output Current Limit Short-Circuit Current | ISHORT | -360 | mA | VOUT = 0V, VIN = MIN(VOUT(NOM) - 1V, -4V), +25℃ | 6 | ||
| Power Supply Rejection Ratio (adjustable, 1kHz) | PSRR | -71 | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 1kHz, +25℃ | 7 | ||
| Power Supply Rejection Ratio (adjustable, 10kHz) | PSRR | -60 | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 10kHz, +25℃ | 7 | ||
| Power Supply Rejection Ratio (adjustable, 100kHz) | PSRR | -44 | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 100kHz, +25℃ | 7 | ||
| Thermal Shutdown Temperature | TSHDN | 160 | ℃ | 7 | |||
| Thermal Shutdown Hysteresis | ΔTSHDN | 20 | ℃ | 7 | |||
| Thermal Resistance Junction-to-Ambient, SOT-23-5 | θJA | 186 | ℃/W | SOT-23-5 | 4 | ||
| Thermal Resistance Junction-to-Board, SOT-23-5 | θJB | 45 | ℃/W | SOT-23-5 | 4 | ||
| Thermal Resistance Junction-to-Case, SOT-23-5 | θJC | 74 | ℃/W | SOT-23-5 | 4 |
CAD (KiCad official)
- Symbol:
SGM2209-ADJXN5G - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
sgm2209-adjxn5g-etched.step/sgm2209-adjxn5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sgm2209-adjxn5g.step/sgm2209-adjxn5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SGMICRO datasheet (20 pp, sha256
7475c1f0b0904b30, retrieved 2026-10-18, 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).
# SGM2209-ADJXN5G
**SGMICRO** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
SGM2209-ADJXN5G from SGMICRO, 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 | GND | power_in | Ground pin for the regulator. |
| 2 | VIN | power_in | Input voltage supply pin; the datasheet recommends a 2.2μF or larger ceramic capacitor from VIN to ground, placed as close as possible to the pin, and the input range is -2.7V to -24V. |
| 3 | EN | input | Enable pin: drive EN 2.0V above or below ground to turn the regulator on and drive it to ground to turn it off; connect EN to VIN for automatic startup. |
| 4 | ADJ | input | Adjustable input (adjustable version only): connect to the midpoint of an external resistor divider to set the output voltage, with the resistors placed as close as possible to this pin. |
| 5 | VOUT | power_out | Regulator output; the datasheet recommends a ceramic capacitor of 1.5μF to 10μF placed as close as possible to the VOUT pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| 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 |
|---|---|---|---|---|---|---|---|
| VIN to GND (absolute maximum) | VIN | -25 | | 0.3 | V | | 4 |
| VOUT to GND (absolute maximum, upper limit) | VOUT | | | 0.3 | V | lower limit printed as VIN - 0.3V | 4 |
| EN to GND (absolute maximum, upper limit) | EN | | | 5 | V | lower limit printed as VIN - 0.3V | 4 |
| EN to VIN (absolute maximum) | EN | -0.3 | | 25 | V | | 4 |
| ADJ to GND (absolute maximum, upper limit) | ADJ | | | 0.3 | V | lower limit printed as VOUT | 4 |
| Junction Temperature (absolute maximum) | TJ | | | 150 | ℃ | | 4 |
| Storage Temperature Range | TSTG | -65 | | 150 | ℃ | | 4 |
| Lead Temperature (Soldering) | | | | 260 | ℃ | soldering, 10s | 4 |
| Input Voltage Range (recommended) | VIN | -2.7 | | -24 | V | | 4 |
| Operating Junction Temperature Range (recommended) | TJ | -40 | | 125 | ℃ | | 4 |
| Input Capacitance, CIN (recommended) | CIN | 1.5 | | | μF | MIN | 4 |
| Output Capacitance, COUT (recommended) | COUT | 1.5 | | 10 | μF | | 4 |
| Input Voltage Range | VIN | -2.7 | | -24 | V | IOUT = -250mA, +25℃ | 6 |
| Input Voltage Range | VIN | -3 | | -24 | V | IOUT = -350mA, +25℃ | 6 |
| Input Voltage Range | VIN | -3.3 | | -24 | V | IOUT = -500mA, +25℃ | 6 |
| Under-Voltage Lockout Threshold, VIN falling | VUVLO | -2.42 | | -2.5 | V | VIN falling, -40℃ to +125℃ | 6 |
| Under-Voltage Lockout Threshold, VIN rising | VUVLO | -2.24 | | -2.33 | V | VIN rising, -40℃ to +125℃ | 6 |
| Operating Supply Current | IGND | | -42 | -83 | µA | IOUT = 0µA, -40℃ to +125℃ | 6 |
| Operating Supply Current | IGND | | -1.2 | -2.1 | mA | IOUT = -500mA, -40℃ to +125℃ | 6 |
| Shutdown Current | ISHDN | | -1.1 | -3 | µA | VEN = GND, -40℃ to +125℃ | 6 |
| Shutdown Current | ISHDN | | -1.2 | -10 | µA | VEN = GND, VIN = -24V, -40℃ to +125℃ | 6 |
| ADJ Pin Input Bias Current | IADJ | -3.5 | | 3.5 | nA | VADJ = -1.3V, VIN = -2.7V to -24V, -40℃ to +125℃ | 6 |
| Output Voltage Accuracy | VOUT | -1 | | 1 | % | IOUT = -10mA, +25℃ | 6 |
| Output Voltage Accuracy | VOUT | -1.5 | | 1.5 | % | VIN = (VOUT(NOM) - 0.5V) to -24V, IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 |
| Feedback Voltage | VADJ | -1.188 | -1.2 | -1.212 | V | IOUT = -10mA, +25℃ | 6 |
| Feedback Voltage | VADJ | -1.182 | | -1.218 | V | VIN = (VOUT(NOM) - 0.5V) to -24V, IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 |
| Line Regulation | ΔVOUT/ΔVIN | | 0.001 | 0.03 | %/V | VIN = (VOUT(NOM) - 0.5V) to -24V, -40℃ to +125℃ | 6 |
| Load Regulation | ΔVOUT/VOUT | | 0.03 | 0.8 | % | IOUT = -1mA to -500mA, -40℃ to +125℃ | 6 |
| Output Current Limit | ILIM | -0.68 | -1.05 | | A | VIN = MIN(VOUT(NOM) - 1V, -4V), +25℃ | 6 |
| Positive Enable High-Level Voltage | VEN(+HI) | 1.22 | | | V | -40℃ to +125℃ | 7 |
| Positive Enable Low-Level Voltage | VEN(+LO) | | | 0.3 | V | -40℃ to +125℃ | 7 |
| Negative Enable High-Level Voltage | VEN(-HI) | | | -2 | V | -40℃ to +125℃ | 7 |
| Negative Enable Low-Level Voltage | VEN(-LO) | -0.55 | | | V | -40℃ to +125℃ | 7 |
| EN Positive Input Current | IEN_P | | 0.9 | 3 | µA | VEN = 5V, VIN = -19V, -40℃ to +125℃ | 7 |
| EN Negative Input Current | IEN_N | | -0.1 | -1 | µA | VEN = -24V, VIN = -24V, -40℃ to +125℃ | 7 |
| Output Current Limit Short-Circuit Current | ISHORT | | -360 | | mA | VOUT = 0V, VIN = MIN(VOUT(NOM) - 1V, -4V), +25℃ | 6 |
| Power Supply Rejection Ratio (adjustable, 1kHz) | PSRR | | -71 | | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 1kHz, +25℃ | 7 |
| Power Supply Rejection Ratio (adjustable, 10kHz) | PSRR | | -60 | | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 10kHz, +25℃ | 7 |
| Power Supply Rejection Ratio (adjustable, 100kHz) | PSRR | | -44 | | dB | VIN = -16V, VOUT(NOM) = -15V, ΔVRIPPLE = 0.2VP-P, adjustable mode, CNR = 100nF, RNR = 13kΩ, RFB1 = 150kΩ, RFB2 = 13kΩ, f = 100kHz, +25℃ | 7 |
| Thermal Shutdown Temperature | TSHDN | | 160 | | ℃ | | 7 |
| Thermal Shutdown Hysteresis | ΔTSHDN | | 20 | | ℃ | | 7 |
| Thermal Resistance Junction-to-Ambient, SOT-23-5 | θJA | | 186 | | ℃/W | SOT-23-5 | 4 |
| Thermal Resistance Junction-to-Board, SOT-23-5 | θJB | | 45 | | ℃/W | SOT-23-5 | 4 |
| Thermal Resistance Junction-to-Case, SOT-23-5 | θJC | | 74 | | ℃/W | SOT-23-5 | 4 |
## CAD (KiCad official)
- Symbol: `SGM2209-ADJXN5G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `sgm2209-adjxn5g-etched.step` / `sgm2209-adjxn5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sgm2209-adjxn5g.step` / `sgm2209-adjxn5g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SGMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835078579744768) (20 pp, sha256 `7475c1f0b0904b30`, retrieved 2026-10-18, 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/sgm2209-adjxn5g-datasheet.pdf)