LT1762 150mA, Low Noise, LDO Micropower Regulators
The LT1762 series are micropower, low noise, low dropout regulators. The devices are capable of supplying 150mA of output current with a dropout voltage of 300mV. Designed for use in battery-powered systems, the low 25µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. A key feature of the LT1762 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µVRMS over a 10Hz to 100kHz bandwidth. The LT1762 regulators are stable with output capacitors as low as 2.2µF. Small ceramic capacitors can be used without the series resistance required by other regulators. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The parts come in fixed output voltages of 2.5V, 3V, 3.3V and 5V, and as an adjustable device with a 1.22V reference voltage. The LT1762 regulators are available in the 8-lead MSOP package
产品特点 Features
- Low Noise: 20µVRMS(10Hz to 100kHz)
- Low Quiescent Current: 25µA
- WideInput Voltage Range: 1.8V to 20V
- Output Current: 150m
- Very Low Shutdown Current: < 1µA
- Low Dropout Voltage: 270mV
- No Protection Diodes Needed
- Fixed Output Voltages: 2.5V, 3V, 3.3V, 5V
- Adjustable Output from 1.22V to 20V
- Stable with 2.2µF Output Capacitor
- Stable with Aluminum, Tantalum or Ceramic Capacitors
- Reverse Battery Protection
- No Reverse Current
- Overcurrent and Overtemperature Protected
- 8-Lead MSOP Package
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应用
- Cellular Phones
- Battery-Powered Systems
- Frequency Synthesizers
- Noise-Sensitive Instrumentation Systems
典型应用图
参数
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LT1762 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) * |
| LT1762EMS8 |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8#PBF |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8#TR |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8#TRPBF |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-2.5 |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-2.5#PBF |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-2.5#TR |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-2.5#TRPBF |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-3 |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-3#PBF |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-3#TR |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-3#TRPBF |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-3.3 |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-3.3#PBF |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-3.3#TR |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-3.3#TRPBF |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-5 |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-5#PBF |
MSOP |
8 |
E |
$1.30 |
$1.10 |
| LT1762EMS8-5#TR |
MSOP |
8 |
E |
|
$1.16 |
| LT1762EMS8-5#TRPBF |
MSOP |
8 |
E |
|
$1.16 |
演示电路板
| 器件型号 |
描述 |
| DC279A-B |
LTC1736, LTC1772, LTC1762 | Low Cost VRM (Intel), 7.5 to 24Vin, 1.3V to 1.6Vout @ 14A, 1.5Vout @ 0.12 to 2.5A, 2.5Vout @ 0.15A |
| DC339A-A |
LT1762EMS8 | Low Noise LDO Regulator, 2.3-20Vin, Jmpr Sel. Vout @ 150mA, 1.22,2.5,3.0,3.3,or 5Vout |
LT1762 数据手册及相关资料下载
- 数据手册(英文) : LT1762 - 150mA, Low Noise, LDO Micropower Regulators.PDF
- 应用指南 (英文) : AN83 - Performance Verification of Low Noise, Low Dropout Regulators.PDF
- 设计要点 (英文) : DN220 - Lowest Noise SOT-23 LDOs Have 20µA Quiescent Current, 20µVrms Noise.PDF
- 可靠性数据 : R386 Reliability Data .PDF
