LT1963A 1.5A、低噪声、快速瞬态响应 LDO 稳压器

LT®1963A 系列是低压差稳压器,专为实现快速瞬态响应而优化。这些器件可提供 1.5A 的输出电流和一个 340mV 的压差电压。工作静态电流为 1mA,并在停机模式中降至 1μA 以下。静态电流处于良好受控状态,与采用其他许多稳压器不同,它在压降条件下并不上升。除了快速瞬态响应之外,LT1963A 稳压器还具有非常低的输出噪声,因而使其非常适合于敏感的 RF 电源应用。

输出电压范围为 1.21V 至 20V。LT1963A 稳压器可在采用低至 10μF 的输出电容器时实现稳定。内部保护电路包括反向电池保护、电流限制、热限制和反向电流保护。该器件可提供 1.5V、1.8V、2.5V、3.3V 的固定输出电压,并可用作一款具 1.21V 基准电压的可调型器件。LT1963A 稳压器采用 5 引脚 TO-220、DD、3 引脚 SOT-223、8 引脚 SO 和 16 引脚 TSSOP 封装。

产品特点 Features
  • 专为实现快速瞬态响应而优化
  • 输出电流:1.5A
  • 压差电压:340mV
  • 低噪声:40μVRMS (10Hz 至 100kHz)
  • 1mA 静态电流
  • 无需保护二极管
  • 压降条件下的受控静态电流
  • 固定输出电压:1.5V、1.8V、2.5V、3.3V
  • 可调输出范围:1.21V 至 20V
  • 停机模式中的静态电流 <1μA
  • 采用 10μF 输出电容器时可稳定
  • 采用陶瓷电容器时可稳定
  • 反向电池保护
  • 无反向电流
  • 热限制功能
  • 5 引线 TO-220、DD、3 引线 SOT-223 和 8 引线 SO 封装
应用
  • 3.3V 至 2.5V 逻辑电源
  • 用于开关电源的后置稳压器
典型应用图
LT1963A 典型应用
参数
LT1963A 参数
LT1963A 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LT1963AEFE TSSOP 16 E $3.57  $2.50 
LT1963AEFE#PBF TSSOP 16 E $3.57  $2.50 
LT1963AEFE#TR TSSOP 16 E $2.62 
LT1963AEFE#TRPBF TSSOP 16 E $2.62 
LT1963AEFE-1.5 TSSOP 16 E $3.57  $2.50 
LT1963AEFE-1.5#PBF TSSOP 16 E $3.57  $2.50 
LT1963AEFE-1.5#TR TSSOP 16 E $2.62 
LT1963AEFE-1.5#TRPBF TSSOP 16 E $2.62 
LT1963AEFE-1.8 TSSOP 16 E $3.57  $2.50 
LT1963AEFE-1.8#PBF TSSOP 16 E $3.57  $2.50 
LT1963AEFE-1.8#TR TSSOP 16 E $2.62 
LT1963AEFE-1.8#TRPBF TSSOP 16 E $2.62 
LT1963AEFE-2.5 TSSOP 16 E $3.57  $2.50 
LT1963AEFE-2.5#PBF TSSOP 16 E $3.57  $2.50 
LT1963AEFE-2.5#TR TSSOP 16 E $2.62 
LT1963AEFE-2.5#TRPBF TSSOP 16 E $2.62 
LT1963AEFE-3.3 TSSOP 16 E $3.57  $2.50 
LT1963AEFE-3.3#PBF TSSOP 16 E $3.57  $2.50 
LT1963AEFE-3.3#TR TSSOP 16 E $2.62 
LT1963AEFE-3.3#TRPBF TSSOP 16 E $2.62 
LT1963AEQ DD PAK 5 E $3.57  $2.50 
LT1963AEQ#PBF DD PAK 5 E $3.57  $2.50 
LT1963AEQ#TR DD PAK 5 E $2.62 
LT1963AEQ#TRPBF DD PAK 5 E $2.62 
LT1963AEQ-1.5 DD PAK 5 E $3.57  $2.50 
LT1963AEQ-1.5#PBF DD PAK 5 E $3.57  $2.50 
LT1963AEQ-1.5#TR DD PAK 5 E $2.62 
LT1963AEQ-1.5#TRPBF DD PAK 5 E $2.62 
LT1963AEQ-1.8 DD PAK 5 E $3.57  $2.50 
LT1963AEQ-1.8#PBF DD PAK 5 E $3.57  $2.50 
LT1963AEQ-1.8#TR DD PAK 5 E $2.62 
LT1963AEQ-1.8#TRPBF DD PAK 5 E $2.62 
LT1963AEQ-2.5 DD PAK 5 E $3.57  $2.50 
LT1963AEQ-2.5#PBF DD PAK 5 E $3.57  $2.50 
LT1963AEQ-2.5#TR DD PAK 5 E $2.62 
LT1963AEQ-2.5#TRPBF DD PAK 5 E $2.62 
LT1963AEQ-3.3 DD PAK 5 E $3.57  $2.50 
LT1963AEQ-3.3#PBF DD PAK 5 E $3.57  $2.50 
LT1963AEQ-3.3#TR DD PAK 5 E $2.62 
LT1963AEQ-3.3#TRPBF DD PAK 5 E $2.62 
LT1963AES8 SO 8 E $2.60  $2.15 
LT1963AES8#PBF SO 8 E $2.60  $2.15 
LT1963AES8#TR SO 8 E $2.20 
LT1963AES8#TRPBF SO 8 E $2.20 
LT1963AES8-1.5 SO 8 E $2.60  $2.15 
LT1963AES8-1.5#PBF SO 8 E $2.60  $2.15 
LT1963AES8-1.5#TR SO 8 E $2.20 
LT1963AES8-1.5#TRPBF SO 8 E $2.20 
LT1963AES8-1.8 SO 8 E $2.60  $2.15 
LT1963AES8-1.8#PBF SO 8 E $2.60  $2.15 
LT1963AES8-1.8#TR SO 8 E $2.20 
LT1963AES8-1.8#TRPBF SO 8 E $2.20 
LT1963AES8-2.5 SO 8 E $2.60  $2.15 
LT1963AES8-2.5#PBF SO 8 E $2.60  $2.15 
LT1963AES8-2.5#TR SO 8 E $2.20 
LT1963AES8-2.5#TRPBF SO 8 E $2.20 
LT1963AES8-3.3 SO 8 E $2.60  $2.15 
LT1963AES8-3.3#PBF SO 8 E $2.60  $2.15 
LT1963AES8-3.3#TR SO 8 E $2.20 
LT1963AES8-3.3#TRPBF SO 8 E $2.20 
LT1963AEST-1.5 SOT 3 E $2.60  $2.15 
LT1963AEST-1.5#PBF SOT 3 E $2.60  $2.15 
LT1963AEST-1.5#TR SOT 3 E $2.20 
LT1963AEST-1.5#TRPBF SOT 3 E $2.20 
LT1963AEST-1.8 SOT 3 E $2.60  $2.15 
LT1963AEST-1.8#PBF SOT 3 E $2.60  $2.15 
LT1963AEST-1.8#TR SOT 3 E $2.20 
LT1963AEST-1.8#TRPBF SOT 3 E $2.20 
LT1963AEST-2.5 SOT 3 E $2.60  $2.15 
LT1963AEST-2.5#PBF SOT 3 E $2.60  $2.15 
LT1963AEST-2.5#TR SOT 3 E $2.20 
LT1963AEST-2.5#TRPBF SOT 3 E $2.20 
LT1963AEST-3.3 SOT 3 E $2.60  $2.15 
LT1963AEST-3.3#PBF SOT 3 E $2.60  $2.15 
LT1963AEST-3.3#TR SOT 3 E $2.20 
LT1963AEST-3.3#TRPBF SOT 3 E $2.20 
LT1963AET TO-220 5 E $3.57  $2.50 
LT1963AET#06PBF TO-220 5 E $3.57  $2.50 
LT1963AET#PBF TO-220 5 E $3.57  $2.50 
LT1963AET-1.5 TO-220 5 E $3.57  $2.50 
LT1963AET-1.5#06PBF TO-220 5 E $3.57  $2.50 
LT1963AET-1.5#PBF TO-220 5 E $3.57  $2.50 
LT1963AET-1.8 TO-220 5 E $3.57  $2.50 
LT1963AET-1.8#06PBF TO-220 5 E $3.57  $2.50 
LT1963AET-1.8#30 TO-220 5 E $4.02  $2.95 
LT1963AET-1.8#30PBF TO-220 5 E $4.02  $2.95 
LT1963AET-1.8#PBF TO-220 5 E $3.57  $2.50 
LT1963AET-2.5 TO-220 5 E $3.57  $2.50 
LT1963AET-2.5#06PBF TO-220 5 E $3.57  $2.50 
LT1963AET-2.5#30 TO-220 5 E $4.02  $2.95 
LT1963AET-2.5#30PBF TO-220 5 E $4.02  $2.95 
LT1963AET-2.5#PBF TO-220 5 E $3.57  $2.50 
LT1963AET-3.3 TO-220 5 E $3.57  $2.50 
LT1963AET-3.3#06PBF TO-220 5 E $3.57  $2.50 
LT1963AET-3.3#30 TO-220 5 E $4.02  $2.95 
LT1963AET-3.3#30PBF TO-220 5 E $4.02  $2.95 
LT1963AET-3.3#PBF TO-220 5 E $3.57  $2.50 
LT1963AIFE#PBF TSSOP 16 I $3.97  $2.78 
LT1963AIFE#TRPBF TSSOP 16 I $2.84 
LT1963AIQ#PBF DD PAK 5 I $3.97  $2.78 
LT1963AIQ#TRPBF DD PAK 5 I $2.90 
LT1963AIS8#PBF SO 8 I $3.43  $2.40 
LT1963AIS8#TRPBF SO 8 I $2.46 
LT1963AIT#PBF TO-220 5 I $3.97  $2.78 
LT1963AMPQ DD PAK 5 MP $9.64  $6.75 
LT1963AMPQ#PBF DD PAK 5 MP $9.64  $6.75 
LT1963AMPQ#TR DD PAK 5 MP $6.85 
LT1963AMPQ#TRPBF DD PAK 5 MP $6.85 
LT1963AMPS8#PBF SO 8 MP $8.29  $5.80 
LT1963AMPS8#TR SO 8 MP $5.86 
LT1963EFE TSSOP 16 E $3.57  $2.50 
LT1963EFE#PBF TSSOP 16 E $3.57  $2.50 
LT1963EFE#TR TSSOP 16 E $2.62 
LT1963EFE#TRPBF TSSOP 16 E $2.62 
LT1963EFE-1.5 TSSOP 16 E $3.57  $2.50 
LT1963EFE-1.5#PBF TSSOP 16 E $3.57  $2.50 
LT1963EFE-1.5#TR TSSOP 16 E $2.62 
LT1963EFE-1.5#TRPBF TSSOP 16 E $2.62 
LT1963EFE-1.8 TSSOP 16 E $3.57  $2.50 
LT1963EFE-1.8#PBF TSSOP 16 E $3.57  $2.50 
LT1963EFE-1.8#TR TSSOP 16 E $2.62 
LT1963EFE-1.8#TRPBF TSSOP 16 E $2.62 
LT1963EFE-2.5 TSSOP 16 E $3.57  $2.50 
LT1963EFE-2.5#PBF TSSOP 16 E $3.57  $2.50 
LT1963EFE-2.5#TR TSSOP 16 E $2.62 
LT1963EFE-2.5#TRPBF TSSOP 16 E $2.62 
LT1963EFE-3.3 TSSOP 16 E $3.57  $2.50 
LT1963EFE-3.3#PBF TSSOP 16 E $3.57  $2.50 
LT1963EFE-3.3#TR TSSOP 16 E $2.62 
LT1963EFE-3.3#TRPBF TSSOP 16 E $2.62 
LT1963EQ DD PAK 5 E $3.57  $2.50 
LT1963EQ#PBF DD PAK 5 E $3.57  $2.50 
LT1963EQ#TR DD PAK 5 E $2.62 
LT1963EQ#TRPBF DD PAK 5 E $2.62 
LT1963EQ-1.5 DD PAK 5 E $3.57  $2.50 
LT1963EQ-1.5#PBF DD PAK 5 E $3.57  $2.50 
LT1963EQ-1.5#TR DD PAK 5 E $2.62 
LT1963EQ-1.5#TRPBF DD PAK 5 E $2.62 
LT1963EQ-1.8 DD PAK 5 E $3.57  $2.50 
LT1963EQ-1.8#PBF DD PAK 5 E $3.57  $2.50 
LT1963EQ-1.8#TR DD PAK 5 E $2.62 
LT1963EQ-1.8#TRPBF DD PAK 5 E $2.62 
LT1963EQ-2.5 DD PAK 5 E $3.57  $2.50 
LT1963EQ-2.5#PBF DD PAK 5 E $3.57  $2.50 
LT1963EQ-2.5#TR DD PAK 5 E $2.62 
LT1963EQ-2.5#TRPBF DD PAK 5 E $2.62 
LT1963EQ-3.3 DD PAK 5 E $3.57  $2.50 
LT1963EQ-3.3#PBF DD PAK 5 E $3.57  $2.50 
LT1963EQ-3.3#TR DD PAK 5 E $2.62 
LT1963EQ-3.3#TRPBF DD PAK 5 E $2.62 
LT1963ES8 SO 8 E $2.60  $2.15 
LT1963ES8#PBF SO 8 E $2.60  $2.15 
LT1963ES8#TR SO 8 E $2.20 
LT1963ES8#TRPBF SO 8 E $2.20 
LT1963ES8-1.5 SO 8 E $2.60  $2.15 
LT1963ES8-1.5#PBF SO 8 E $2.60  $2.15 
LT1963ES8-1.5#TR SO 8 E $2.20 
LT1963ES8-1.5#TRPBF SO 8 E $2.20 
LT1963ES8-1.8 SO 8 E $2.60  $2.15 
LT1963ES8-1.8#PBF SO 8 E $2.60  $2.15 
LT1963ES8-1.8#TR SO 8 E $2.20 
LT1963ES8-1.8#TRPBF SO 8 E $2.20 
LT1963ES8-2.5 SO 8 E $2.60  $2.15 
LT1963ES8-2.5#PBF SO 8 E $2.60  $2.15 
LT1963ES8-2.5#TR SO 8 E $2.20 
LT1963ES8-2.5#TRPBF SO 8 E $2.20 
LT1963ES8-3.3 SO 8 E $2.60  $2.15 
LT1963ES8-3.3#PBF SO 8 E $2.60  $2.15 
LT1963ES8-3.3#TR SO 8 E $2.20 
LT1963ES8-3.3#TRPBF SO 8 E $2.20 
LT1963EST-1.5 SOT 3 E $2.60  $2.15 
LT1963EST-1.5#PBF SOT 3 E $2.60  $2.15 
LT1963EST-1.5#TR SOT 3 E $2.20 
LT1963EST-1.5#TRPBF SOT 3 E $2.20 
LT1963EST-1.8 SOT 3 E $2.60  $2.15 
LT1963EST-1.8#PBF SOT 3 E $2.60  $2.15 
LT1963EST-1.8#TR SOT 3 E $2.20 
LT1963EST-1.8#TRPBF SOT 3 E $2.20 
LT1963EST-2.5 SOT 3 E $2.60  $2.15 
LT1963EST-2.5#PBF SOT 3 E $2.60  $2.15 
LT1963EST-2.5#TR SOT 3 E $2.20 
LT1963EST-2.5#TRPBF SOT 3 E $2.20 
LT1963EST-3.3 SOT 3 E $2.60  $2.15 
LT1963EST-3.3#PBF SOT 3 E $2.60  $2.15 
LT1963EST-3.3#TR SOT 3 E $2.20 
LT1963EST-3.3#TRPBF SOT 3 E $2.20 
LT1963ET TO-220 5 E $3.00  $2.50 
LT1963ET#06PBF TO-220 5 E $3.00  $2.50 
LT1963ET#30PBF TO-220 5 E $3.45  $2.95 
LT1963ET#31PBF TO-220 5 E $3.45  $2.95 
LT1963ET#PBF TO-220 5 E $3.00  $2.50 
LT1963ET-1.5 TO-220 5 E $3.00  $2.50 
LT1963ET-1.5#30PBF TO-220 5 E $3.45  $2.95 
LT1963ET-1.5#PBF TO-220 5 E $3.00  $2.50 
LT1963ET-1.8 TO-220 5 E $3.00  $2.50 
LT1963ET-1.8#30PBF TO-220 5 E $3.45  $2.95 
LT1963ET-1.8#PBF TO-220 5 E $3.00  $2.50 
LT1963ET-2.5 TO-220 5 E $3.00  $2.50 
LT1963ET-2.5#PBF TO-220 5 E $3.00  $2.50 
LT1963ET-3.3 TO-220 5 E $3.00  $2.50 
LT1963ET-3.3#06PBF TO-220 5 E $3.00  $2.50 
LT1963ET-3.3#30PBF TO-220 5 E $3.45  $2.95 
LT1963ET-3.3#PBF TO-220 5 E $3.00  $2.50 
LT1963A 数据手册及相关资料下载
  1. 数据手册(英文) : LT1963A Series - 1.5A, Low Noise, Fast Transient Response LDO Regulators.PDF
  2. 应用指南 (英文) : AN83 - Performance Verification of Low Noise, Low Dropout Regulators.PDF
  3. 可靠性数据 : R386 Reliability Data .PDF