Linear Technology DC1216A-B - 122.88MHz High Speed ADC Clock Source DC1216A-B DC1216A-B 数据表

产品代码
DC1216A-B
下载
页码 22
LT1761 Series
1
1761sff
 TYPICAL APPLICATION
 DESCRIPTION
100mA, Low Noise,
LDO Micropower
Regulators in TSOT-23
The LT
®
1761 series are micropower, low noise, low 
dropout regulators. With an external 0.01μF bypass 
capacitor, output noise drops to 20μV
RMS
 over a 10Hz to 
100kHz bandwidth. Designed for use in battery-powered 
systems, the low 20μA quiescent current makes them an 
ideal choice. In shutdown, quiescent current drops to less 
than 0.1μA. The devices are capable of operating over  an 
input voltage from 1.8V to 20V, and can supply 100mA of 
output current with a dropout voltage of 300mV. Quiescent 
current is well controlled, not rising in dropout as it does 
with many other regulators.
The LT1761 regulators are stable with output capacitors as 
low as 1μF. 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 device is available in fi xed output 
voltages of 1.2V, 1.5V, 1.8V, 2V, 2.5V, 2.8V, 3V, 3.3V and 
5V, and as an adjustable device with a 1.22V reference 
voltage. The LT1761 regulators are available in the 5-lead 
TSOT-23 package.
5V Low Noise Regulator
 FEATURES
 APPLICATIONS
n
  Low Noise: 20μV
RMS
 (10Hz to 100kHz)
n
  Low Quiescent Current: 20μA
n
  Wide Input Voltage Range: 1.8V to 20V
n
  Output Current: 100mA
n
  Very Low Shutdown Current: <0.1μA
n
  Low Dropout Voltage: 300mV at 100mA 
n
  Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2V, 2.5V,  
 
2.8V, 3V, 3.3V, 5V
n
  Adjustable Output from 1.22V to 20V
n
  Stable with 1μF Output Capacitor
n
  Stable with Aluminum, Tantalum or
 Ceramic 
Capacitors
n
 Reverse-Battery Protected
n
  No Reverse Current
n
  No Protection Diodes Needed
n
  Overcurrent and Overtemperature Protected
n
  Available in Tiny 5-Lead TSOT-23 Package
n
 Cellular Phones
n
 Pagers
n
 Battery-Powered Systems
n
 Frequency Synthesizers
n
 Wireless Modems
10Hz to 100kHz Output Noise
IN
SHDN
0.01μF
10μF
1761 TA01
OUT
V
IN
5.4V TO
20V
BYP
GND
LT1761-5
5V AT100mA
20μV
RMS
 NOISE
1μF
+
V
OUT
100μV/DIV
20μV
RMS
1761 TA01b
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of Linear Technology Corporation. All other trademarks are the property of their respective 
owners.