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Product details

Parameters

Output options Fixed Output, Negative Output Iout (Max) (A) 0.1 Vin (Max) (V) -7 Vin (Min) (V) -30 Vout (Max) (V) -5 Vout (Min) (V) -15 Fixed output options (V) -5, -12, -15 Noise (uVrms) 400 Iq (Typ) (mA) 2 Thermal resistance θJA (°C/W) 60 Approx. price (US$) 0.20 | 1ku Load capacitance (Min) (µF) 0.1 Rating Catalog Regulated outputs (#) 1 Features Accuracy (%) 4 PSRR @ 100 KHz (dB) 35 Dropout voltage (Vdo) (Typ) (mV) 1700 Operating temperature range (C) 0 to 70 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

DSBGA (YZR) 6 2 mm² 1.066 x 1.854 SOIC (D) 8 19 mm² 4.9 x 3.9 TO-92 (LP) 3 19 mm² 5.2 x 3.68 open-in-new Find other Linear regulators (LDO)

Features

  • Preset Output Voltage Error is Less than ±5% Over Load, Line and Temperature
  • Specified at an Output Current of 100mA
  • Easily Compensated with a Small 0.1μF Output Capacitor
  • Internal Short-Circuit, Thermal and Safe Operating Area Protection
  • Easily Adjustable to Higher Output Voltages
  • Maximum Line Regulation Less than 0.07% VOUT/V
  • Maximum Load Regulation Less than 0.01% VOUT/mA
  • See AN-1112 (SNVA009) for DSBGA Considerations

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Description

The LM79LXXAC series of 3-terminal negative voltage regulators features fixed output voltages of −5V, −12V, and −15V with output current capabilities in excess of 100mA. These devices were designed using the latest computer techniques for optimizing the packaged IC thermal/electrical performance. The LM79LXXAC series, when combined with a minimum output capacitor of 0.1μF, exhibits an excellent transient response, a maximum line regulation of 0.07% VO/V, and a maximum load regulation of 0.01% VO/mA.

The LM79LXXAC series also includes, as self-protection circuitry: safe operating area circuitry for output transistor power dissipation limiting, a temperature independent short circuit current limit for peak output current limiting, and a thermal shutdown circuit to prevent excessive junction temperature. Although designed primarily as fixed voltage regulators, these devices may be combined with simple external circuitry for boosted and/or adjustable voltages and currents. The LM79LXXAC series is available in the 3-lead TO package, the 8-lead SOIC package, and the 6-Bump DSBGA package.

For output voltages other than the pre-set -5V, -12V and -15V, the LM137L series provides an adjustable output voltage range from -1.2V to -47V.

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Technical documentation

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Type Title Date
* Datasheet LM79LXXAC Series 3-Terminal Negative Regulators datasheet (Rev. K) Apr. 09, 2013
Application notes L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. A) Apr. 14, 2020
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
More literature Die D/S LM79L12AC MDA 3-Terminal Negative Regulators Sep. 28, 2012
Application notes TO-92 Packing Options / Ordering Instructions (Rev. A) Jun. 23, 2010

Design & development

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

Reference designs

REFERENCE DESIGNS Download
SAE J1772-compliant electric vehicle service equipment reference design for level 1 and 2 EV charger
TIDA-010071 — This reference design highlights an ultra-low standby isolated AC/DC auxiliary power stage followed by converters and linear regulators, a comparator-based control pilot interface to meet the SAE J1772 standard, an  efficient relay and contactor drive and isolated line voltage sensing across (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DSBGA (YZR) 6 View options
SOIC (D) 8 View options
TO-92 (LP) 3 View options

Ordering & quality

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