■Overcurrent and Overtemperature Protected 8-Lead MSOP Package
APPLICATIOnS
■Cellular Phones■Noise-Sensitive Instrumentation Systems
DESCRIPTIOn
The LT@1762 series are micropower, low noise, low dropout regulators. The devices are capable of supply-ing 150mA of output current with a dropout voltage of270mV. Designed for use in battery-powered systems, the low 25uA 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 LT1762EMS8-5#PBF regulators is low output noise.With the addition of an external 0.01uF bypass capacitor, output noise drops to 20uVRMS over a 10Hz to 100kHz bandwidth. The LT1762EMS8-5#PBF regulators are stable with output capacitors as low as 2.2uF. Small ceramic capacitors canbe used without the series resistance required by other regulators.
Internal protection circuitry includes reverse battery pro-tection, current limiting, thermal limiting and reverse cur-rent 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 LT1762EMS8-5#PBF regulators are available in the 8-lead MSOP package.
Low Noise: 20µVRMS (10Hz to 100kHz)
Low Quiescent Current: 25µA
Wide Input Voltage Range: 1.8V to 20V
Output Current: 150mA
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
Cellular Phones
Battery-Powered Systems
Frequency Synthesizers
Noise-Sensitive Instrumentation Systems
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage Input (Max)
20V
Voltage Output (Min/Fixed)
5V
Voltage Dropout (Max)
0.4V @ 150mA
Current Output
150mA
PSRR
65dB (120Hz)
Control Features
Enable
Protection Features
Over Current, Over Temperature, Reverse Polarity
Operating Temperature
-40??C ~ 125??C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Supplier Device Package
8-MSOP