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LM317LBZG

Public Made by Adom

by 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.

componentpower management (pmic)lm317lbzgfactory-2.0.0extractor-text
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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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.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 (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