LT1306ES8 Linear Technology, LT1306ES8 Datasheet
LT1306ES8
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LT1306ES8 Summary of contents
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... Automatic Burst Mode Operation at Light Loads Quiescent Current: 160 A Shutdown Current Typ U APPLICATIO S Satellite Phones Portable Instruments Personal Digital Assistants Palmtop Computers , LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. U TYPICAL APPLICATION 1-CELL Li-Ion ...
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... Duty Cycle = 0.8 (Note 0V OUT 2.2V OUT 0V 7V 7.2V, V OUT IN SW CAP U W INFORMATION ORDER PART NUMBER TOP VIEW 1 8 S/S LT1306ES8 CAP PART MARKING S8 PACKAGE 8-LEAD PLASTIC SO 1306 = 125 open unless otherwise noted. C MIN TYP MAX 1.22 1.24 1.26 0.002 0 150 220 5 7 ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER S/S Pin Current Shutdown Pin Input High Voltage Shutdown Pin Input Low Voltage Shutdown Delay Synchronization Frequency Range Operating Supply Current Quiescent Supply Current Shutdown Supply Current CAP Pin Leakage ...
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LT1306 W U TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Supply Current vs Input Voltage – ...
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W U TYPICAL PERFORMANCE CHARACTERISTICS Rectifier Saturation Voltage vs Current 0 0.6 0.5 0 – 0.3 0.2 0.1 0 0.5 1.0 2.0 0 1.5 RECTIFIER CURRENT ...
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LT1306 PIN FUNCTIONS V (Pin 1): Compensation Pin for Error Amplifier the output of the transconductance error amplifier. Loop frequency compensation is done by connecting an RC network from the V pin to ground. C ...
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U OPERATIO The LT1306 is a fixed frequency current mode PWM regulator with integrated power transistor Q1 and syn- chronous rectifier Q2. In the Block Diagram, Figure 2, the PWM control circuit is enclosed within the dashed line. It consists ...
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LT1306 U OPERATIO In boost operation, X5 drives the rectifier Q2 into satura- tion. The voltage across the rectifier is V inductor current decreases, Q2’s base drive also de- creases. X5 ceases supplying base current to Q2 when the inductor ...
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U U APPLICATIONS INFORMATION Output Voltage Setting The output voltage of the LT1306 is set with a resistive divider, R1 and R2 (Figure 1 and Figure 5), from the output to ground. The divider tap is tied to the FB ...
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LT1306 U U APPLICATIONS INFORMATION Since a boost converter produces high output current ripple, one also needs to consider the maximum ripple current rating of the output capacitor. Capacitor reliability will be affected if the ripple current exceeds the maximum ...
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U U APPLICATIONS INFORMATION where Output Voltage R Maximum Load L Maximum DC Load Current D Maximum Converter Duty Cycle MAX V – MIN ( ) There is also ...
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LT1306 U U APPLICATIONS INFORMATION GAIN (dB) AMOUNT OF MIDBAND GAIN NEEDED (R3)( LOOP GAIN CROSSOVER FREQUENCY Figure 6. Gain Asymptotes of the Control-to-Output Figure ...
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U U APPLICATIONS INFORMATION GROUND PLANE V OUT Figure 8. Recommended Component Placement for LT1306. Notice That the Input and the Output Capacitors Are Grounded at the Same Point. A Ground Plane Under the DC/DC Converter Is Highly Recommended. Use ...
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LT1306 U TYPICAL APPLICATIO IN1 0.1 F CERAMIC 14 2-Cell NiMH to 3.3V Output 4 CAP IN 2V/500kHz S/S OUT R1 LT1306 + 412k C IN2 ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... Internal Switch, V Efficiency 4. 3. 100 1000 2000 LOAD CURRENT (mA) 1306 F10a Q , Operate with V as Low as 1. 36V/350mA Internal Switch Low as 1. 1.19V to 30V in Stepdown 3.5V to 36V IN as Low as 1.5V IN 1306f LT/TP 0400 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 ...