LT1610 Linear Technology, LT1610 Datasheet
LT1610
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LT1610 Summary of contents
Page 1
... No-load quiescent current of the LT1610 and the internal NPN power switch handles a 300mA current with a voltage drop of 300mV. The LT1610 is available in 8-lead MSOP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. ...
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... ( ( ( ORDER PART TOP VIEW NUMBER COMP 8 LT1610CS8 GND 7 LT1610IS8 PART MARKING S8 PACKAGE 1610 8-LEAD PLASTIC SO = 125 C, = 120 C/W 1610I JA = 1.5V unless otherwise noted. IN SHDN IN MIN ...
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... Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT1610C is guaranteed to meet specified performance from and is designed, characterized and expected to meet these extended temperature limits, but is not tested at – and 85 C. The LT1610I is guaranteed to meet the extended temperature limits ...
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... LT1610 W U TYPICAL PERFOR A CE CHARACTERISTICS V vs Current CESAT 600 500 400 300 T = – 200 100 0 100 200 300 400 500 600 SWITCH CURRENT (mA) 1610 G01 Oscillator Frequency vs Input Voltage 2. 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0. ...
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... COMP pin is used for com- pensation 40k + – COMP 30k R4 + 140k – BIAS COMPARATOR – RAMP A2 GENERATOR + 1.7MHz OSCILLATOR Figure 2. LT1610 Block Diagram LT1610 3 SHUTDOWN SHDN 7 GND ENABLE DRIVER 0. – 4 PGND 1610 F02 C 5 ...
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... A1’s output goes high. If the load is light, the output voltage (and FB voltage) will increase until A1’s output goes low, turning off the rest of the LT1610. Low fre- quency ripple voltage appears at the output. The ripple frequency is dependent on load current and output capaci- tance ...
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... C1, C2: AVX TAJA226M006 C3: AVX 1206YC105 (X7R) SHUTDOWN D1: MOTOROLA MBR0520 L1, L2: MURATA LQH3C220 (UNCOUPLED) OR SUMIDA CLS62-220 (COUPLED) Figure 4. Li-Ion to 3.3V SEPIC DC/DC Converter LT1610 OUT LT1610 D1 V OUT 3.3V 120mA • 6.3V 1610 F04 L2 1610 F05 7 ...
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... Capacitors The input capacitor must be placed physically close to the LT1610. ESR is not critical for the input. In most cases inexpensive tantalum can be used. The choice of output capacitor is far more important. The quality of this capacitor is the greatest determinant of the output voltage ripple ...
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... All Ceramic, Low Profile Design Large value ceramic capacitors that are suitable for use as 1610 F07 the main output capacitor of an LT1610 regulator are now available. These capacitors have very low ESR and there- fore offer very low output ripple in a small package. ...
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... This zero may not be effective because the ceramic capacitor’s ESR is very low. Most current mode switching regulators (including the LT1610) can easily be compensated without this zero. Any design should be tested for stability at the extremes of operating temperatures ...
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... F 7 1610 TA02 D1 V OUT 3.3V 70mA 604k 1610 TA04 SHUTDOWN V OUT 12V 100mA 115k 1610 TA06 LT1610 Efficiency 1. 0 100 1000 LOAD CURRENT (mA) 1610 TA03 Efficiency 90 3.3V OUT 1.5V IN ...
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... LT1610 U TYPICAL APPLICATIONS 5V to 9V/150mA Boost Converter LT1610 COMP SHDN GND PGND 7 C1: AVX TAJA156M010 C2: AVX TAJB156M016 D1: MOTOROLA MBR0520 L1: MURATA LQH3C100M24 200mV/DIV LOAD CURRENT INDUCTOR CURRENT 200mA/DIV OUT 9V 150mA ...
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... GND PGND 100k 48. 51pF TFT LCD Bias Supply Transient Response OFF 70mA 25mA 200 s/DIV V LOAD = 5mA ON V LOAD = 5mA OFF LT1610 V OFF – 8V 5mA 24V 5mA 70mA C2 4.7 F 1610 TA18 1610 TA19 13 ...
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... OUTPUT VOLTAGE (V) 14 Single Cell Super Cap Charger COMP SHDN + + C2 C1 LT1610 GND PGND 15k 7 4 3.3nF Super Cap Charger Output Power vs Output Voltage 4.5 5.0 1610 TA12 OUT 4 ...
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... MSOP (MS8) 1197 TYP 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157** (3.810 – 3.988 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) TYP SO8 0996 LT1610 15 ...
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... OR SUMIDA CLS62-220 (COUPLED) 4-Cell to 5V/120mA SEPIC DC/DC Converter • CELLS 22 F LT1610 6.3V 8 COMP SHDN GND PGND 7 4 C1, C2: AVX TAJB226M006 C3: AVX 1206YC105 (X7R) D1: MOTOROLA MBR0520 L1, L2: MURATA LQH3C220 (UNCOUPLED) OR SUMIDA CLS62-220 (COUPLED) RELATED PARTS PART NUMBER DESCRIPTION ® ...