LTC1514 LINER [Linear Technology], LTC1514 Datasheet
LTC1514
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LTC1514 Summary of contents
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FEATURES Output Current: 100mA (LT1054) ■ 125mA (LT1054L) Reference and Error Amplifier for Regulation ■ Low Loss: 1.1V at 100mA ■ Operating Range: 3.5V to 15V (LT1054) ■ 3. (LT1054L) External Shutdown ■ External Oscillator Synchronization ■ Can ...
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LT1054/LT1054L ABSOLUTE MAXIMUM RATINGS Supply Voltage (Note 2) LT1054 .................................................................16V LT1054L .................................................................7V Input Voltage Pin 1 ................................................. 0V ≤ V Pin 3 (S Package) ............................. 0V ≤ V Pin 7 .............................................. 0V ≤ V Pin 13 (S Package) ...................... 0V ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER Supply Current Supply Voltage Range Voltage Loss (V – OUT Output Resistance Oscillator Frequency Reference Voltage Regulated Voltage Line Regulation Load Regulation Maximum Switch Current Supply Current ...
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LT1054/LT1054L TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Threshold 0.6 0.5 V PIN1 0.4 0.3 0.2 0.1 0 – 50 – 100 TEMPERATURE (°C) LT1054 • TPC01 Supply Current in Shutdown 120 100 PIN1 80 ...
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TYPICAL PERFORMANCE CHARACTERISTICS Regulated Output Voltage –4.7 –4.8 –4.9 –5.0 –5.1 –11.6 –11.8 –12.0 –12.2 –12.4 –12.6 – –25 TEMPERATURE (°C) PIN FUNCTIONS FB/SHDN (Pin 1): Feedback/Shutdown Pin. This pin has two functions. Pulling Pin 1 below the ...
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LT1054/LT1054L PIN FUNCTIONS transistor must be added as shown in Figure 1. This will prevent V (Pin 5) from being pulled above the ground OUT pin (Pin 3) during start-up. Any small, general purpose transistor such as 2N2222 or 2N2219 ...
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PIN FUNCTIONS is charging, the peak supply current will be approximately equal to 2.2 times the output current. During the time that C is delivering charge to C the supply current drops IN OUT to approximately 0.2 times the output ...
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LT1054/LT1054L APPLICATIONS INFORMATION R3 FB/SHDN CAP + 10µF GND TANTALUM CAP RESTART SHUTDOWN ) ) ) ) | | | | OUT OUT = + 1 ≈ 1.21V REF – ...
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APPLICATIONS INFORMATION where dV = peak-to-peak ripple and f = oscillator frequency. For output capacitors with significant ESR a second term must be added to account for the voltage step at the switch transitions. This step is approximately equal to: ...
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LT1054/LT1054L TYPICAL APPLICATIONS Basic Voltage Inverter + FB/SHDN V + CAP OSC + LT1054 100µF GND V REF – CAP V OUT Negative Voltage Doubler + FB/SHDN V + CAP OSC + LT1054 V GND V IN REF 100µF – ...
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TYPICAL APPLICATIONS +V OUT OUT –V OUT 5µF FB/SHDN + CAP OSC + LT1054 #1 10µF GND V REF – CAP V OUT 10k INPUT TTL 10k OR CMOS LOW FOR ON 0.022µF 1 ...
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LT1054/LT1054L TYPICAL APPLICATIONS V IN 3.5V TO 5.5V 20k 1N914 1N914 1N914 + 10µ 3. OUT I = 50mA OUT(MAX) FB/SHDN + CAP LT1054 #1 10 GND 10µF 1/2W – CAP + ...
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PACKAGE DESCRIPTION CORNER LEADS OPTION .045 – .068 (1.143 – 1.650) FULL LEAD OPTION .300 BSC (7.62 BSC) .008 – .018 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .400* (10.160) MAX 8 7 ...
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LT1054/LT1054L PACKAGE DESCRIPTION .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD ...
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REVISION HISTORY (Revision history begins at Rev F) REV DATE DESCRIPTION F 12/10 The LTC1054MJ8 is now available. Changes reflected throughout the data sheet Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility ...
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