LT3032 系列 - 双通道、150mA、正 / 负、低噪声、低压差线性稳压器
LT®3032 是一款双通道、低噪声、正和负低压差电压线性稳压器。每个稳压器可提供高达 150mA 电流和一个 300mV 的典型压差电压。每个稳压器的静态电流很低 (工作时为 30μA，而在停机模式则为 <3μA)，并在压差条件下处于良好受控状态，从而使其成为电池供电型电路的绝佳选择。
LT3032 另一个重要的特点是低输出噪声。给每个稳压器增设一个外部 10nF 旁路电容器，可以将输出噪声降低至 20μVRMS / 30μVRMS (在 10Hz 至 100kHz 的带宽内)。LT3032 能够在采用 2.2μF (最小值) 输出电容器时保持稳定。该稳压器不像其他稳压器所常见的那样需要额外的 ESR。
这些稳压器可提供低至 ±1.22V 基准电压的可调输出，或固定输出在 ±3.3V、±5V、±12V 和 ±15V 。内部保护电路包括反向输出保护、电流限制和热限制。
LT3032 采用一种独特的扁平 14 引脚 4mm x 3mm x 0.75mm DFN 封装，该封装具有用于每个稳压器的裸露背部衬垫，因而实现了最佳的热性能。
特点
典型应用  | 应用
封装信息 |
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|
| LT3032EDE-12#PBF | 4x3 DFN-14 | E | $3.14 | $2.20 |
| LT3032EDE-12#TRPBF | 4x3 DFN-14 | E | $2.26 | |
| LT3032EDE-15#PBF | 4x3 DFN-14 | E | $3.14 | $2.20 |
| LT3032EDE-15#TRPBF | 4x3 DFN-14 | E | $2.26 | |
| LT3032EDE-3.3#PBF | 4x3 DFN-14 | E | $3.14 | $2.20 |
| LT3032EDE-3.3#TRPBF | 4x3 DFN-14 | E | $2.26 | |
| LT3032EDE-5#PBF | 4x3 DFN-14 | E | $3.14 | $2.20 |
| LT3032EDE-5#TRPBF | 4x3 DFN-14 | E | $2.26 | |
| LT3032EDE#PBF | 4x3 DFN-14 | E | $3.14 | $2.20 |
| LT3032EDE#TRPBF | 4x3 DFN-14 | E | $2.26 | |
| LT3032IDE-12#PBF | 4x3 DFN-14 | I | $3.64 | $2.55 |
| LT3032IDE-12#TRPBF | 4x3 DFN-14 | I | $2.61 | |
| LT3032IDE-15#PBF | 4x3 DFN-14 | I | $3.64 | $2.55 |
| LT3032IDE-15#TRPBF | 4x3 DFN-14 | I | $2.61 | |
| LT3032IDE-3.3#PBF | 4x3 DFN-14 | I | $3.64 | $2.55 |
| LT3032IDE-3.3#TRPBF | 4x3 DFN-14 | I | $2.61 | |
| LT3032IDE-5#PBF | 4x3 DFN-14 | I | $3.64 | $2.55 |
| LT3032IDE-5#TRPBF | 4x3 DFN-14 | I | $2.61 | |
| LT3032IDE#PBF | 4x3 DFN-14 | I | $3.64 | $2.55 |
| LT3032IDE#TRPBF | 4x3 DFN-14 | I | $2.61 | |
| LT3032MPDE-12#PBF | 4x3 DFN-14 | MP | $8.50 | $5.95 |
| LT3032MPDE-12#TRPBF | 4x3 DFN-14 | MP | $6.01 | |
| LT3032MPDE-15#PBF | 4x3 DFN-14 | MP | $8.50 | $5.95 |
| LT3032MPDE-15#TRPBF | 4x3 DFN-14 | MP | $6.01 | |
| LT3032MPDE-3.3#PBF | 4x3 DFN-14 | MP | $8.50 | $5.95 |
| LT3032MPDE-3.3#TRPBF | 4x3 DFN-14 | MP | $6.01 | |
| LT3032MPDE-5#PBF | 4x3 DFN-14 | MP | $8.50 | $5.95 |
| LT3032MPDE-5#TRPBF | 4x3 DFN-14 | MP | $6.01 | |
| LT3032MPDE#PBF | 4x3 DFN-14 | MP | $8.50 | $5.95 |
| LT3032MPDE#TRPBF | 4x3 DFN-14 | MP | $6.01 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1622A | LT3032IDE Demo Board | Dual Positive/Negative, Low Noise, Low Dropout Linear Regulator, ±2.3V ≤ VIN ≤ ±20V, Vout = ±1.2/±3.3/±5/±12/±15V @ ±150mA | $125.00 |
- 双输出正/负 ±20VIN、±150mA LDO 的噪声仅为 20uVRMS
- 具 20uVRMS 低噪声的双通道、正/负、±20VIN、±150mA LDO 现可提供高可靠性和 MP 级温度版本
- R386 Reliability Data
- Dual Positive/Negative ±20VIN ±150mA LDO Offers 20µVRMS Noise
- Dual Positive/Negative ±20VIN ±150mA LDO with 20uVRMS Noise Now Offered in High Reliability, MP-Grade Temperature Range
- LT3032 Footprints and Symbols
- Not Your Dad's LDO
- LT3032 Demo Circuit - Dual 150mA Positive/Negative Low Noise LDO Linear Regulator (5V to 3.3V @ 0.15A & -5V to -3.3V @ 0.15A)
- LTC3261/LT3032 Demo Circuit - Dual Polarity Low Noise Power Supply from a Single Input Supply (4.5-20V to ±3.3V @ 20mA)
