LTC1844 150mA, Micropower, Low Noise, VLDO linear Regulator
The LTC®1844 Series are low noise VLDOTM (very low dropout) linear regulators designed for low power/portable applications. These regulators can operate from input voltages as low as 1.6V. Typical output noise is only 30µVRMS and typical dropout for the LTC1844-3.3 is just 90mV at the maximum load current of 150mA, reducing to 30mV at 50mA.
The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 35µA during normal operation, independent of the dropout voltage and load current. The quiescent current falls to a negligible 10nA during shutdown.
Other features include high output voltage accuracy, excellent transient response, stablity with ultralow ESR ceramic capacitors as small as 1µF, reverse-battery and reverse-current protection, short-circuit and thermal overload protection and output current limiting.
The LTC1844 regulators are available in a low profile (1mm) SOT-23 (ThinSOTTM) package
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LTC1844 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) * |
| LTC1844ES5-1.5 | SOT | 5 | E | $1.77 | |
| LTC1844ES5-1.5#PBF | SOT | 5 | E | $1.77 | |
| LTC1844ES5-1.5#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-1.5#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-1.5#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-1.5#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-1.8 | SOT | 5 | E | $1.77 | |
| LTC1844ES5-1.8#PBF | SOT | 5 | E | $1.77 | |
| LTC1844ES5-1.8#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-1.8#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-1.8#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-1.8#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-2.5 | SOT | 5 | E | $1.77 | |
| LTC1844ES5-2.5#PBF | SOT | 5 | E | $1.77 | |
| LTC1844ES5-2.5#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-2.5#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-2.5#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-2.5#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-2.8 | SOT | 5 | E | $1.77 | |
| LTC1844ES5-2.8#PBF | SOT | 5 | E | $1.77 | |
| LTC1844ES5-2.8#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-2.8#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-2.8#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-2.8#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-3.3 | SOT | 5 | E | $1.77 | |
| LTC1844ES5-3.3#PBF | SOT | 5 | E | $1.77 | |
| LTC1844ES5-3.3#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-3.3#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-3.3#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-3.3#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-BYP | SOT | 5 | E | $1.77 | |
| LTC1844ES5-BYP#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-BYP#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-BYP#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-BYP#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-SD | SOT | 5 | E | $1.77 | |
| LTC1844ES5-SD#TR | SOT | 5 | E | $1.77 | $1.21 |
| LTC1844ES5-SD#TRM | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-SD#TRMPBF | SOT | 5 | E | $1.77 | $1.23 |
| LTC1844ES5-SD#TRPBF | SOT | 5 | E | $1.77 | $1.21 |
演示电路板
| 器件型号 | 描述 |
| DC660A | LTC1844ES5-BYP | Low Noise Micropower linear Voltage Regulator, Vin = 1.8V - 6.5V, Vout = 150mA Max. |
LTC1844 数据手册及相关资料下载
- 数据手册(英文) : LTC1844 Series - 150mA, Micropower, Low Noise, VLDO linear Regulator.PDF
- 可靠性数据 : R421 Reliability Data .PDF
