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線性與低壓差 (LDO) 穩壓器

UA78L

現行

100-mA 30-V 線性電壓穩壓器

立即訂購
產品規格表

UA78L

現行
產品規格表 立即訂購

產品詳細資料

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, 3.3, 5, 6.2, 8, 9, 10, 12, 15 Rating Catalog Noise (µVrms) 42 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 3.8 Thermal resistance θJA (°C/W) 55 Load capacitance (min) (µF) 0.1 Regulated outputs (#) 1 Accuracy (%) 3.75 Dropout voltage (Vdo) (typ) (mV) 1700 Operating temperature range (°C) -40 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, 3.3, 5, 6.2, 8, 9, 10, 12, 15 Rating Catalog Noise (µVrms) 42 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 3.8 Thermal resistance θJA (°C/W) 55 Load capacitance (min) (µF) 0.1 Regulated outputs (#) 1 Accuracy (%) 3.75 Dropout voltage (Vdo) (typ) (mV) 1700 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-89 (PK) 3 18.4275 mm² 4.5 x 4.095 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • Input voltage range (V I): 4.75 V to 35 V
  • Output voltage range (V O):
    • 2.6 V to 15 V (for legacy chip)
    • 3.3 V to 15 V (for new chip)
  • Output current: Up to 100 mA
  • Quiescent current I Q: 3.8 mA
  • Built-in short-circuit current limiting and thermal protection
  • Stable without any external component
  • Supported temperature range:
    • Legacy chip C and AC versions: 0°C to +125°C
    • Legacy chip AI version: –40°C to +125°C
    • New chip: –40°C to +125°C
  • Packages:
    • 8-pin, 4.9-mm × 3.91-mm SOIC
    • 3-pin, 4.3-mm × 4.3-mm TO-92
    • 3-pin, 4.5-mm × 2.5-mm SOT-89
  • Input voltage range (V I): 4.75 V to 35 V
  • Output voltage range (V O):
    • 2.6 V to 15 V (for legacy chip)
    • 3.3 V to 15 V (for new chip)
  • Output current: Up to 100 mA
  • Quiescent current I Q: 3.8 mA
  • Built-in short-circuit current limiting and thermal protection
  • Stable without any external component
  • Supported temperature range:
    • Legacy chip C and AC versions: 0°C to +125°C
    • Legacy chip AI version: –40°C to +125°C
    • New chip: –40°C to +125°C
  • Packages:
    • 8-pin, 4.9-mm × 3.91-mm SOIC
    • 3-pin, 4.3-mm × 4.3-mm TO-92
    • 3-pin, 4.5-mm × 2.5-mm SOT-89

The UA78L series of fixed-voltage linear regulators is designed for a wide range of applications. The UA78L series can be used for on-card regulation to eliminate the noise and distribution problems associated with single-point regulation. The UA78L can also be used with power-pass elements to make high-current voltage regulators. The UA78L series regulators can deliver up to 100 mA of output current. Additionally, the UA78L does not need an external capacitor for stable operation across the load current range. The internal current-limiting and thermal-shutdown features of these regulators help protect the device from overload.

For the legacy chip, the UA78L00C and UA78L00AC series are characterized for the junction temperature range of 0°C to +125°C and the UA78L05AI device is characterized for the operating junction temperature range of –40°C to +125°C.

For the new chip, the UA78L series is characterized for the junction temperature range of –40°C to +125°C.

The UA78L series of fixed-voltage linear regulators is designed for a wide range of applications. The UA78L series can be used for on-card regulation to eliminate the noise and distribution problems associated with single-point regulation. The UA78L can also be used with power-pass elements to make high-current voltage regulators. The UA78L series regulators can deliver up to 100 mA of output current. Additionally, the UA78L does not need an external capacitor for stable operation across the load current range. The internal current-limiting and thermal-shutdown features of these regulators help protect the device from overload.

For the legacy chip, the UA78L00C and UA78L00AC series are characterized for the junction temperature range of 0°C to +125°C and the UA78L05AI device is characterized for the operating junction temperature range of –40°C to +125°C.

For the new chip, the UA78L series is characterized for the junction temperature range of –40°C to +125°C.
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技術文件

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類型 標題 日期
* Data sheet UA78L Series Positive-Voltage Linear Regulators datasheet (Rev. X) PDF | HTML 2023年 6月 23日
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020年 8月 18日
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

UA78LEVM-075 — 適用於 100-mA 30-V 線性電壓穩壓器的 UA78L 評估模組

UA78L 評估模組 (EVM) 是一款平台，可評估採用 PK 封裝之 UA78L 線性穩壓器的運作與性能。此 EVM 配置包含適合一般應用的單一 100-mA、三端子、低壓差 (LDO) 穩壓器。穩壓器可提供最高達 100-mA 的輸出電流，並具備高達 20 V 的輸入電壓 (VIN) 範圍。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

UA78L PK PSpice Model

SLVME11.ZIP (17 KB) - PSpice Model
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參考設計

PMP15038 — 適用於電池測試系統的 50A、0.05% 電流準確度電源參考設計

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 (...)
Test report: PDF
電路圖: PDF
參考設計

PMP15043 — 適用於電池測試系統的 6A、0.05% 電流準確度電源解決方案的參考設計

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 (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-89 (PK) 3 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
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  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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