lt3029emse Linear Technology Corporation, lt3029emse Datasheet
lt3029emse
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lt3029emse Summary of contents
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FEATURES n Output Current: 500mA per Channel Low Dropout Voltage: 300mV n n Low Noise: 20μV (10Hz to 100kHz) RMS n Low Quiescent Current: 55μA per Channel Wide Input Voltage Range: 1.8V to 20V (Common or n Independent Input Supply) ...
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... LT3029MPMSE#TRPBF LEAD BASED FINISH TAPE AND REEL LT3029EDE LT3029EDE#TR LT3029IDE LT3029IDE#TR LT3029EMSE LT3029EMSE#TR LT3029IMSE LT3029IMSE#TR LT3029HMSE LT3029HMSE#TR LT3029MPMSE LT3029MPMSE#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Minimum Input Voltage (Notes 3, 11) ADJ1, ADJ2 Pin Voltage (Notes Line Regulation (Note 3) Load Regulation (Note 3) Dropout Voltage OUT(NOMINAL) ...
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LT3029 ELECTRICAL CHARACTERISTICS Note 7: GND pin current is tested with V = 2.437V and a current source IN load. This means the device is tested while operating in its dropout region or at the minimum input voltage specifi cation. ...
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TYPICAL PERFORMANCE CHARACTERISTICS ADJ1 or ADJ2 Pin Voltage 1.239 I = 1mA L 1.233 1.227 1.221 1.215 1.209 1.203 1.197 1.191 –75 –50 – 100 125 150 175 TEMPERATURE (°C) GND Pin Current (per Channel) 1.6 ...
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LT3029 TYPICAL PERFORMANCE CHARACTERISTICS SHDN1 or SHDN2 Pin Threshold (Off-to-On) 1.0 0.9 0.8 0 500mA L 0.6 0 1mA L 0.4 0.3 0.2 0 100 125 150 175 –75 –50 –25 0 ...
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TYPICAL PERFORMANCE CHARACTERISTICS Reverse Current 300 270 1.215V ADJ OUT 240 210 I ADJ 180 150 120 OUT 100 125 150 175 –75 –50 ...
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LT3029 TYPICAL PERFORMANCE CHARACTERISTICS Channel-to-Channel Isolation V OUT1 50mV/DIV V OUT2 50mV/DIV 50μs/DIV C = 10μF OUT1 C = 10μF OUT2 0.01μF BYP1 BYP2 Output Noise Spectral Density 25° 10μF ...
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TYPICAL PERFORMANCE CHARACTERISTICS 10Hz to 100kHz Output Noise 0pF BYP V OUT 100μV/DIV 1ms/DIV C = 10μF OUT I = 500mA OUT 10Hz to 100kHz Output Noise 1000pF BYP V OUT 100μV/DIV ...
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LT3029 TYPICAL PERFORMANCE CHARACTERISTICS Transient Response DEVIATION OUT 200mV/DIV LOAD CURRENT DEVIATION 250mA/DIV 200μs/DIV 100mA 10μ 25° 10μ OUT OUT ...
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PIN FUNCTIONS BYP1/BYP2 (Pin 1/Pin 8): Bypass. Use the BYP1/BYP2 pins to bypass the reference of the LT3029 regulator and achieve low output noise performance. Internal circuitry clamps the BYP1/BYP2 pins to ±0.6V (one V ground. A small capacitor from ...
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LT3029 APPLICATIONS INFORMATION The LT3029 is a dual 500mA/500mA low dropout regulator with independent inputs, micropower quiescent current and shutdown. The device supplies up to 500mA from each channel’s output at a typical dropout voltage of 300mV. The two regulators ...
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APPLICATIONS INFORMATION Bypass Capacitance and Low Noise Performance Using a bypass capacitor connected between a channel’s BYP pin and its corresponding OUT pin signifi cantly low- ers LT3029 output voltage noise, but is not required in all applications. Linear Technology ...
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LT3029 APPLICATIONS INFORMATION 2μF for the applied DC bias voltage and over the operat- ing temperature range. X5R and X7R dielectrics result in more stable characteristics and are more suitable for use as the output capacitor. The X7R type has ...
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APPLICATIONS INFORMATION Thermal Considerations The LT3029’s power handling capability limits the maximum rated junction temperature (125°C, LT3029E/LT3029I/ LT3029MP or 150°C, LT3029H). Two components comprise the power dissipated by each channel: 1. Output current multiplied by the input/output voltage differential: (I ...
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LT3029 APPLICATIONS INFORMATION Calculating Junction Temperature Example: Channel 1’s output voltage is set to 1.8V. Chan- nel 2’s output voltage is set to 1.5V. Each channel’s input voltage is 2.5V. Each channel’s output current range is 0mA to 500mA. The ...
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APPLICATIONS INFORMATION 22V. The output acts like an open circuit, and no current fl ows from the output. However, current fl ows in (but is limited by) the external resistor divider that sets the output voltage. The LT3029 incurs no ...
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LT3029 PACKAGE DESCRIPTION 3.60 ±0.05 2.20 ±0.05 1.70 ± 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (SEE NOTE 6) 0.200 REF NOTE: 1. DRAWING PROPOSED TO BE ...
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... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... LDO with Independent Inputs LT3028 Dual 100mA/500mA, Low Noise, Micropower LDO with Independent Inputs LT3080/ 1.1A, Parallelable, Low Noise LDO LT3080-1 ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● Coincident Tracking Supply Application ...