LTC1754-3.3 LINER [Linear Technology], LTC1754-3.3 Datasheet
LTC1754-3.3
Related parts for LTC1754-3.3
LTC1754-3.3 Summary of contents
Page 1
... IN OUT FLY 3. 3. – 3.25 3.20 2.0 2.5 3.0 3.5 SUPPLY VOLTAGE (V) LTC1754-3.3/LTC1754-5 Micropower, Regulated Shutdown in SOT-23 U ® 1754 is a micropower charge pump DC/DC and V ) make the LTC1754 IN OUT switched capaci- to GND. OUT LTC1754-5 Output Voltage vs Supply Voltage 5. 25mA OUT OUT 5 ...
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... CC V Output Ripple R Efficiency f Switching Frequency OSC t V Turn-On Time ON OUT I Output Short-Circuit Current SC LTC1754-3.3/LTC1754-5 I Shutdown Supply Current SHDN V SHDN Input Threshold (High SHDN Input Threshold (Low SHDN Input Current (High SHDN Input Current (Low) IL Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired ...
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... G04 Output Ripple V OUT AC COUPLED 20mV/DIV s/DIV 1754 G07 OUT I = 20mA OUT LTC1754-3.3/LTC1754-5 LTC1754-3. unless otherwise noted. A Supply Current vs V SHDN OUT 2. 4 ...
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... LTC1754-3.3/LTC1754 TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage vs Output Current 5. OUT 5. FLY 5. 5. 2.7V IN 4.95 4.90 4. 100 OUTPUT CURRENT (mA) 1574-5 G02 V Short-Circuit Current OUT vs Supply Voltage 220 FLY 200 180 160 140 ...
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... W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1754-3.3. LTC1754- unless otherwise noted. A Efficiency vs Supply Voltage 100 FLY 90 80 LTC1754 25mA OUT LTC1754-3 20mA OUT 40 30 2.0 2.5 3.0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 1754 G19 CTIO S V (Pin 1): Regulated Output Voltage. For best perfor- ...
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... LTC1754-3.3/LTC1754 APPLICATIO S I FOR ATIO Operation (Refer To Block Diagram) The LTC1754 uses a switched-capacitor charge pump to boost regulated output voltage. Regulation is IN achieved by sensing the output voltage through an internal resistor divider and enabling the charge pump when the divided output drops below the lower trip point of COMP1. ...
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... Since the LTC1754 spends nearly the entire time in shutdown, the no-load quiescent current is approximately (V . The LTC1754 must be out of shutdown for a minimum OUT duration of 200 s to allow enough time to sense the output voltage and keep it in regulation. A 2Hz, 2% duty cycle LTC1754-3.3/LTC1754 OUT + LTC1754-X ...
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... MODE (2Hz TO 100Hz DUTY CYCLE) Q Figure 2. Ultralow Quiescent Current Regulated Supply OUT FLY LTC1754 LTC1754-3 4.0 2.0 2.5 3.0 3.5 4.5 SUPPLY VOLTAGE (V) Figure 3. No-Load Supply Current vs Supply Voltage for the Circuit Shown in Figure Layout Considerations ...
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... SHDN GND LTC1540 6 10k USB Port to Regulated 5V Power Supply LTC1754 LTC1754-3.3/LTC1754-5 1 LTC1521-3 3.3V OUT I 300mA OUT I 20mA BACKUP 10 F OUT HIGH = BACKUP MODE 175433 TA03 1 V OUT 50mA 1754 TA06 ...
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... LTC1754 SHDN GND 3.3V and 5V Step-Up Generator from – + – OUT LTC1754-3.3 LTC1754 SHDN GND SHDN V OUT 5V 100mA 10 F 1754 TA07 100 100 100 10 F 1754 TA08 V OUT1 3. 20mA 3 ...
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... REF (0.110 – 0.118) 1.50 – 1.75 0.00 – 0.15 (0.059 – 0.069) (0.00 – 0.006) 0.35 – 0.50 0.09 – 0.20 (0.014 – 0.020) (0.004 – 0.008) SIX PLACES (NOTE 2) (NOTE 2) LTC1754-3.3/LTC1754-5 0.95 (0.037) REF 0.90 – 1.45 (0.035 – 0.057) 0.90 – 1.30 (0.035 – 0.051) S6 SOT-23 0898 11 ...
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... LTC1754-3.3/LTC1754-5 U TYPICAL APPLICATIO Low Power Battery Backup with Autoswitchover and No Reverse Current 1N4148 75k 1.43M 475k RELATED PARTS PART NUMBER DESCRIPTION LT1054 High Power Doubler Charge Pump LTC1144 Charge Pump Inverter with Shutdown LTC1262 12V, 30mA Flash Memory Prog. Supply ...