LM317BT

Description：IC REG LINEAR POS ADJ 1.5A TO220
Series：-
Mfr：onsemi
Package：Tube

SKU:2077b9d6c343 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: onsemi

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Product introduction

LM317BT is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR POS ADJ 1.5A TO220. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LM317BT

Description：IC REG LINEAR POS ADJ 1.5A TO220
Series：-
Mfr：onsemi
Package：Tube
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.2V
Voltage - Output (Max)：37V
Voltage Dropout (Max)：-
Current - Output：1.5A
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：80dB ~ 65dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LM317BT

LM317BT

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LM317BT is an adjustable three-terminal positive voltage regulator manufactured by onsemi. It delivers output currents exceeding 1.5 A across a voltage range of 1.2 V to 37 V. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220 package (Case 221AB). Key electrical characteristics include a typical line regulation of 0.01 %/V, load regulation of 0.1% VO, and ripple rejection of 80 dB at 120 Hz without external adjustment capacitance.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

Internal thermal overload protection safeguards against excessive heat
Integrated short circuit current limiting remains constant with temperature
Output transistor safe-area compensation ensures operational reliability
Floating operation capability supports high voltage applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

Local on-card regulation
Programmable output regulators
Precision current regulators

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'BT' corresponds to the required operating temperature range (-40°C to +125°C) and TO-220 package configuration. Confirm RoHS compliance status for the specific manufacturing lot. Ensure input-output voltage differentials remain within the 40 Vdc maximum rating during system design.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when fixed voltage regulators are impractical due to varying supply requirements. The device eliminates the need to stock multiple fixed voltage parts. Consider thermal resistance values when designing heatsinking solutions for continuous high-current loads above 1.5 A.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LM317 family of monolithic integrated circuits designed as positive adjustable voltage regulators. The series provides flexibility in power management designs through simple two-resistor programming. Variants exist in surface mount packages like D2PAK-3 alongside standard leaded transistor packages.