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UA78L

ACTIVE

100-mA, 30-V, linear voltage regulator

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Data sheet
100-mA, 30-V, linear voltage regulator

UA78L

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (Max) (A) 0.1 Vin (Max) (V) 30 Vin (Min) (V) 4.75 Vout (Max) (V) 15 Vout (Min) (V) 2.6 Fixed output options (V) 2.6, 5, 6.2, 8, 9, 10, 12, 15 Noise (uVrms) 42 Iq (Typ) (mA) 3.8 Thermal resistance θJA (°C/W) 55 Rating Catalog Load capacitance (Min) (µF) 0.1 Regulated outputs (#) 1 Features — Accuracy (%) 3.75 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 1700 Operating temperature range (C) -40 to 125, 0 to 125
Output options Fixed Output Iout (Max) (A) 0.1 Vin (Max) (V) 30 Vin (Min) (V) 4.75 Vout (Max) (V) 15 Vout (Min) (V) 2.6 Fixed output options (V) 2.6, 5, 6.2, 8, 9, 10, 12, 15 Noise (uVrms) 42 Iq (Typ) (mA) 3.8 Thermal resistance θJA (°C/W) 55 Rating Catalog Load capacitance (Min) (µF) 0.1 Regulated outputs (#) 1 Features — Accuracy (%) 3.75 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 1700 Operating temperature range (C) -40 to 125, 0 to 125
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SOIC (D) 8 19 mm² 3.91 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-89 (PK) 3 18 mm² 4.5 x 4.095 TO-92 (LP) 3 19 mm² 5.2 x 3.68
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  • 3-Terminal Linear Regulators
  • Output Current Up to 100 mA
  • No External Components
  • Internal Thermal-Overload Protection
  • Internal Short-Circuit Current Limiting
  • 3-Terminal Linear Regulators
  • Output Current Up to 100 mA
  • No External Components
  • Internal Thermal-Overload Protection
  • Internal Short-Circuit Current Limiting
open-in-new Find other Linear & low-dropout (LDO) regulators

The UA78L00 series of fixed-voltage linear regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation as well as for voltage regulation in major appliances. In addition, they can be used with power-pass elements to make high-current voltage regulators. One of these regulators can deliver up to 100 mA of output current. The internal limiting and thermal-shutdown features of these regulators help to protect the device from overload.

The UA78L00C and UA78L00AC series devices are characterized for operation over the virtual junction temperature range of 0°C to 125°C. The UA78L05AI device is characterized for operation over the virtual junction temperature range of –40°C to 125°C.

The UA78L00 series of fixed-voltage linear regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation as well as for voltage regulation in major appliances. In addition, they can be used with power-pass elements to make high-current voltage regulators. One of these regulators can deliver up to 100 mA of output current. The internal limiting and thermal-shutdown features of these regulators help to protect the device from overload.

The UA78L00C and UA78L00AC series devices are characterized for operation over the virtual junction temperature range of 0°C to 125°C. The UA78L05AI device is characterized for operation over the virtual junction temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet UA78L00 Series Positive-Voltage Linear Regulators datasheet (Rev. V) 30 Nov 2016
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Reference designs

PMP15043 — 6A, 0.05% Current Accuracy Power Solution for Battery Test Systems Reference Design

This reference design circuit introduces a highly accurate, bi-directional current power solution used in battery test systems (BTS). The maximum current capability is 6A with lower than 0.05% full scale accuracy. Controlling through a logic pin, the circuit can be used to charge or discharge a (...)
document-pdfAcrobat Schematic
Reference designs

PMP15038 — 50A, 0.05% Current Accuracy Power Reference Design for Battery Test Systems

This reference design introduces a large current, highly accurate and bi-directional power solution used in battery test systems (BTS). It includes a LM5170EVM-BIDIR and a signal control board. The LM5170EVM-BIDIR is an evaluation board  to showcase the high performance of the dual-channel (...)
document-pdfAcrobat Schematic
Package Pins Download
SOIC (D) 8 View options
SOT-89 (PK) 3 View options
TO-92 (LP) 3 View options

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