LM78L
- For lower cost alternative, see the UA78L
- Input voltage up to 30 V
- Output voltage tolerances of ±5% over the temperature range
- Available output voltages: 5 V, 6.2 V, 8.2 V, 9 V, 12 V, and 15 V
- Output current of 100 mA
- Output transistor safe area protection
- Internal thermal overload protection
- Internal short-circuit current limit
- No external components
- Available in tiny DSBGA package
- Available in 3-pin TO-92 and 8-pin SOIC low profile packages
The LM78L series (LM78Lxx throughout this document) of three terminal positive regulators is available with several fixed output voltages, making them useful in a wide range of applications. Used as a Zener-diode and resistor combination replacement, the LM78Lxx usually provides an effective output impedance improvement of two orders of magnitude and lower quiescent current. These regulators can provide local, on-card regulation, eliminating distribution problems associated with single-point regulation. The available voltages allow the LM78Lxx to be used in logic systems, instrumentation, HiFi, and other solid-state electronic equipment.
The LM78Lxx is available in the plastic TO-92 (LP) package, the SOIC (D) package, and a chip-sized package (8-Bump DSBGA) using TI’s DSBGA package technology. With adequate heat sinking, the regulator can deliver 100-mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation is too high for the heat sinking provided, the thermal shutdown circuit prevents the IC from overheating.
See the AN-1112 DSBGA Wafer Level Chip Scale Package application note for DSBGA considerations. For more information on the TO-92 package, see the TO-92 Packing Options/Ordering Instructions application report.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM78L 100-mA Fixed Output Linear Regulator datasheet (Rev. L) | PDF | HTML | 2020年 6月 10日 |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
| Application note | AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) | 2013年 5月 6日 | ||
| Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 2013年 5月 6日 | ||
| More literature | Die D/S LM78L05 MWC 3-Terminal Positive Regulators | 2012年 9月 28日 | ||
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 2010年 6月 23日 | ||
| Application note | Packaging Limits Range of Linear Regulators | 2010年 5月 8日 | ||
| Application note | Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) | 2008年 6月 4日 | ||
| Application note | Understanding the Terms and Definitions of LDO Voltage Regulators | 1999年 10月 21日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| DSBGA (YPB) | 8 | 檢視選項 |
| SOIC (D) | 8 | 檢視選項 |
| TO-92 (LP) | 3 | 檢視選項 |
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