(Hong Kong)
Product Summary
The LTC1550LCS8-4.1#TR is a switched capacitor charge pump voltage inverter which includes internal linear post-regulators to minimize output ripple. Output voltages are fixed at -4.1V, -2.5V and -2V with ripple voltages typically below 1mVP-P. The LTC1550LCS8-4.1#TR is also available in an adjustable output voltage version. The device is ideal for use as bias voltage generators for GaAs transmitter FETs in portable RF and cellular telephone applications. The applications of the LTC1550LCS8-4.1#TR include GaAs FET Bias Generators, Negative Supply Generators, Battery-Powered Systems, Single Supply Applications.
Parametrics
LTC1550LCS8-4.1#TR absolute maximum ratings: (1)Supply Voltage: 5.5V; (2)Output Voltage: 0.3V to (VCC - 10.5V); (3)Total Voltage, VCC to CPOUT: 10.8V; (4)Input Voltage (SHDN Pin): -0.3V to (VCC + 0.3V); (5)Input Voltage (REG Pin): -0.3V to 6V; (6)Output Short-Circuit Duration: 30 sec; (7)Commercial Temperature Range: 0℃ to 70℃; (8)Extended Commercial Operating, Temperature Range (Note 3): -40℃ to 85℃; (9)Industrial Temperature Range: -40℃ to 85℃; (10)Storage Temperature Range: -65℃ to 150℃; (11)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC1550LCS8-4.1#TR features: (1)Regulated Negative Voltage from a Single Positive Supply; (2)Low Output Ripple: Less Than 1mVP-P Typ; (3)High Charge Pump Frequency: 900kHz; (4)Small Charge Pump Capacitors: 0.1mF; (5)Requires Only Four External Capacitors; (6)Fixed -4.1V, -2.5V, -2V or Adjustable Output; (7)Shutdown Mode Drops Supply Current to <1mA; (8)High Output Current: Up to 20mA (Depending on VCC to VOUT Range); (9)Output Regulation: 2.5% Over Line, Load and Temperature; (10)Available in 8-Lead MSOP, 8-Lead Narrow SO and 16-Lead Narrow SSOP.
Diagrams
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 LTC1550LCS8-4.1#TR |
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IC REG SWITCHED CAP INV 8SOIC |
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LTC1550LCS8-4.1#TRPBF |
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IC REG SWITCHED CAP INV 8SOIC |
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