component
LM317LBZG
Public Made by Adomby adom
onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM317LBZG
onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
LM317LBZG from onsemi, in a TO-92-3. 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 | Adjust | input | Adjustment terminal; the output is set by R1/R2 with the adjust current IAdj controlled to less than 100 µA and held constant. |
| 2 | Vout | power_out | Regulated output terminal, which sources more than 100 mA over an output range of 1.2 V to 37 V with a maximum input-output differential of 40 Vdc. |
| 3 | Vin | power_in | Unregulated input supply terminal; the input-output voltage differential must not exceed 40 Vdc. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-92-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Line Regulation | Regline | 0.01 | 0.04 | %/V | TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V | 3 | |
| Load Regulation, VO ≤ 5.0 V | Regload | 5 | 25 | mV | TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V | 3 | |
| Load Regulation, VO ≥ 5.0 V | Regload | 0.1 | 0.5 | % VO | TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V | 3 | |
| Adjustment Pin Current | IAdj | 50 | 100 | μA | 3 | ||
| Adjustment Pin Current Change | IAdj | 0.2 | 5 | μA | 2.5 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L | 3 | |
| Reference Voltage | Vref | 1.2 | 1.25 | 1.3 | V | 3.0 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L | 3 |
| Line Regulation (second listed row) | Regline | 0.02 | 0.07 | %/V | 3.0 V ≤ VI − VO ≤ 40 V | 3 | |
| Load Regulation, VO ≤ 5.0 V (second listed row) | Regload | 20 | 70 | mV | 10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V | 3 | |
| Load Regulation, VO ≥ 5.0 V (second listed row) | Regload | 0.3 | 1.5 | % VO | 10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V | 3 | |
| Minimum Load Current to Maintain Regulation | ILmin | 3.5 | 10 | mA | VI − VO = 40 V | 3 | |
| Maximum Output Current | Imax | 100 | 200 | mA | VI − VO ≤ 6.25 V, PD ≤ Pmax, Z Package | 3 | |
| Maximum Output Current | Imax | 20 | mA | VI − VO ≤ 40 V, PD ≤ Pmax, TA = 25°C, Z Package | 3 | ||
| Ripple Rejection | RR | 60 | 80 | dB | VO = 1.2 V, f = 120 Hz | 3 | |
| Ripple Rejection | RR | 80 | dB | CAdj = 10 μF, VO = 10.0 V | 3 | ||
| Long Term Stability | S | 0.3 | 1 | %/1.0 k Hrs. | TJ = Thigh, TA = 25°C for endpoint measurements | 3 | |
| Input-Output Voltage Differential | VI−VO | 40 | Vdc | 2 | |||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Maximum Junction Temperature | TJMAX | 150 | °C | 2 | |||
| Thermal Resistance, Junction-to-Ambient (TO-92, Case 29) | RJA | 160 | °C/W | Case 29 (TO−92) | 2 | ||
| Thermal Resistance, Junction-to-Case (TO-92, Case 29) | RJC | 83 | °C/W | Case 29 (TO−92) | 2 | ||
| Operating Junction Temperature Range (LM317LB family, includes LM317LBZG) | TJ | -40 | 125 | °C | Ordering table group LM317LB; Tlow to Thigh = −40°C to +125°C | 9 | |
| Adjustable Output Voltage Range | VO | 1.2 | 37 | V | Output adjustable between 1.2 V and 37 V (Features) | 1 | |
| Maximum Power Dissipation (Pmax, test-note value) | Pmax | 625 | mW | Note 4: Imax = 100 mA | 3 |
CAD (KiCad official)
- Symbol:
LM317LBZG - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
lm317lbzg-etched.step/lm317lbzg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm317lbzg.step/lm317lbzg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (15 pp, sha256
76fa7633208fd6fc, retrieved 2026-10-19, 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).
# LM317LBZG
**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
LM317LBZG from onsemi, in a TO-92-3. 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 | Adjust | input | Adjustment terminal; the output is set by R1/R2 with the adjust current IAdj controlled to less than 100 µA and held constant. |
| 2 | Vout | power_out | Regulated output terminal, which sources more than 100 mA over an output range of 1.2 V to 37 V with a maximum input-output differential of 40 Vdc. |
| 3 | Vin | power_in | Unregulated input supply terminal; the input-output voltage differential must not exceed 40 Vdc. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-92-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Line Regulation | Regline | | 0.01 | 0.04 | %/V | TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V | 3 |
| Load Regulation, VO ≤ 5.0 V | Regload | | 5 | 25 | mV | TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V | 3 |
| Load Regulation, VO ≥ 5.0 V | Regload | | 0.1 | 0.5 | % VO | TA = 25°C, 10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V | 3 |
| Adjustment Pin Current | IAdj | | 50 | 100 | μA | | 3 |
| Adjustment Pin Current Change | IAdj | | 0.2 | 5 | μA | 2.5 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L | 3 |
| Reference Voltage | Vref | 1.2 | 1.25 | 1.3 | V | 3.0 V ≤ VI − VO ≤ 40 V, PD ≤ Pmax, 10 mA ≤ IO ≤ Imax − LM317L | 3 |
| Line Regulation (second listed row) | Regline | | 0.02 | 0.07 | %/V | 3.0 V ≤ VI − VO ≤ 40 V | 3 |
| Load Regulation, VO ≤ 5.0 V (second listed row) | Regload | | 20 | 70 | mV | 10 mA ≤ IO ≤ Imax − LM317L, VO ≤ 5.0 V | 3 |
| Load Regulation, VO ≥ 5.0 V (second listed row) | Regload | | 0.3 | 1.5 | % VO | 10 mA ≤ IO ≤ Imax − LM317L, VO ≥ 5.0 V | 3 |
| Minimum Load Current to Maintain Regulation | ILmin | | 3.5 | 10 | mA | VI − VO = 40 V | 3 |
| Maximum Output Current | Imax | 100 | | 200 | mA | VI − VO ≤ 6.25 V, PD ≤ Pmax, Z Package | 3 |
| Maximum Output Current | Imax | 20 | | | mA | VI − VO ≤ 40 V, PD ≤ Pmax, TA = 25°C, Z Package | 3 |
| Ripple Rejection | RR | 60 | | 80 | dB | VO = 1.2 V, f = 120 Hz | 3 |
| Ripple Rejection | RR | 80 | | | dB | CAdj = 10 μF, VO = 10.0 V | 3 |
| Long Term Stability | S | | 0.3 | 1 | %/1.0 k Hrs. | TJ = Thigh, TA = 25°C for endpoint measurements | 3 |
| Input-Output Voltage Differential | VI−VO | | | 40 | Vdc | | 2 |
| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |
| Maximum Junction Temperature | TJMAX | | | 150 | °C | | 2 |
| Thermal Resistance, Junction-to-Ambient (TO-92, Case 29) | RJA | | 160 | | °C/W | Case 29 (TO−92) | 2 |
| Thermal Resistance, Junction-to-Case (TO-92, Case 29) | RJC | | 83 | | °C/W | Case 29 (TO−92) | 2 |
| Operating Junction Temperature Range (LM317LB family, includes LM317LBZG) | TJ | -40 | | 125 | °C | Ordering table group LM317LB; Tlow to Thigh = −40°C to +125°C | 9 |
| Adjustable Output Voltage Range | VO | 1.2 | | 37 | V | Output adjustable between 1.2 V and 37 V (Features) | 1 |
| Maximum Power Dissipation (Pmax, test-note value) | Pmax | | | 625 | mW | Note 4: Imax = 100 mA | 3 |
## CAD (KiCad official)
- Symbol: `LM317LBZG`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files: `lm317lbzg-etched.step` / `lm317lbzg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm317lbzg.step` / `lm317lbzg.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588890158103584768) (15 pp, sha256 `76fa7633208fd6fc`, retrieved 2026-10-19, 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/lm317lbzg-datasheet.pdf)