LTC3406B-2 Linear Technology, LTC3406B-2 Datasheet
LTC3406B-2
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LTC3406B-2 Summary of contents
Page 1
... The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The LTC3406B-1.2 is available in a low profile (1mm) ThinSOT package. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners ...
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... OUT I = 100mA –100mA 0V 5V, V RUN ORDER PART TOP VIEW RUN OUT LTC3406BES5-1.2 GND PART MARKING S5 PACKAGE 5-LEAD PLASTIC TSOT-23 = 125°C, θ = 250°C/ W, θ = 90°C/ W JMAX JA JC MIN TYP ● 1.164 1.2 2 ...
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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 LTC3406BE-1.2 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls ...
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... LTC3406B-1.2 TYPICAL PERFOR A CE CHARACTERISTICS (From Figure Input Voltage DS(ON 0 25°C A 0.6 0.5 MAIN SWITCH 0.4 0.3 SYNCHRONOUS SWITCH 0.2 0 INPUT VOLTAGE (V) Dynamic Supply Current vs Temperature 340 LOAD 320 300 280 260 240 220 200 –50 Switch Leakage vs Input Voltage ...
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... I = 0mA TO 600mA LOAD 3406B12 G17 25µs/DIV GND, Pin 2, with a 2.2µF or greater ceramic capacitor. V OUT resistive divider divides the output voltage down for com- parison to the internal reference voltage. LTC3406B-1.2 Load Step V OUT 100mV/DIV AC COUPLED I L 500mA/DIV I LOAD 500mA/DIV 3406B12 G15 25µ ...
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... I voltage will ring. This is discontinuous mode operation, and is normal behavior for the switching regulator. At very light loads, the LTC3406B-1.2 will automatically skip pulses in pulse skipping mode operation to maintain output regu- lation. Refer to LTC3406-1.2 data sheet if Burst Mode op- eration is preferred ...
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... The choice of which style inductor to use often depends more on the price vs size requirements and any radiated field/EMI requirements than on what the LTC3406B-1.2 requires to operate. Table 1 shows some typical surface mount inductors that work well in LTC3406B-1.2 applications. 4 DataSheet U ...
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... Their high ripple current, high voltage rating and low ESR make them ideal for switching regulator applications. Because the LTC3406B-1.2’s control loop does not depend on the output capacitor’s ESR for stable operation, ceramic ca- pacitors can be used freely to achieve very low output ripple and small circuit size ...
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... Thermal Considerations In most applications the LTC3406B-1.2 does not dissi- pate much heat due to its high efficiency. But, in applica- tions where the LTC3406B-1.2 is running at high ambient temperature with low supply voltage, the heat dissipated may exceed the maximum junction temperature of the part. If the junction temperature reaches approximately 150° ...
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... Keep the (–) plates of C OUT can be moni- OUT Design Example As a design example, assume the LTC3406B-1.2 is used in a single lithium-ion battery-powered cellular phone application. The V 4.2V down to about 2.7V. The load current requirement is a maximum of 0.6A but most of the time it will regulator can standby mode, requiring only 2mA ...
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... JEDEC PACKAGE REFERENCE IS MO-193 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. LTC3406B-1.2 † 2.2µH V OUT 1 ...
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... LTC3406B-1.2 RELATED PARTS PART NUMBER DESCRIPTION LT1616 500mA (I OUT DC/DC Converter LT1676 450mA (I OUT DC/DC Converter LTC1701/LT1701B 750mA (I OUT DC/DC Converter LT1776 500mA (I OUT DC/DC Converter LTC1877 600mA (I OUT DC/DC Converter LTC1878 600mA (I OUT DC/DC Converter LTC1879 1. 550kHz, Synchronous Step-Down OUT DC/DC Converter LTC3403 600mA (I OUT DC/DC Converter with Bypass Transistor ...