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TS3300

A 0.6-4.5VIN, 1.8-5.25VOUT, 3.5 A, HIGH-EFFICIENCY BOOST + LINEAR REGULATOR

Models#:
TS3300
Manufacturer :
Touchstone Semiconductor
Datasheet :
TS3300 PDF
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1
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Stock : 5053
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TS3300
Touchstone Semiconductor
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Estimated Delivery Time: Mar 28 - Apr 02 days (choose Expedited at checkout).
Manufacturer:
Touchstone Semiconductor
Datasheet:
TS3300 PDF

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Product Details

The TS3300 is a 1st-generation Touchstone Semi power management product that combines a high-efficiency boost regulator and a low dropout linear regulator (LDO) in one package. The boost regulator operates from a supply voltage as low as 0.6V and can deliver at least 75mA at 1.2VBI to 3VBO, an industry first. 

The TS3300 LDOs input is connected to the output of the boost regulator, serving as a post-regulator for the boost, enabling a number of useful functions such as a buck-boost function. In power harvesting or peak load buffering applications, the LDO may post-regulate voltage buffered in a large capacitor or supercapacitor at boosts output. Finally, the LDO may be operated simply as an on/off load switch. 

The LDO can deliver up to 100mA output current at a dropout voltage of 255mV and reduce the ripple voltage out of the boost regulator by a factor of 3. The TS3300s boost section includes an anti-crushTM feature to prevent the collapse of the input voltage to the boost regulator when the input is a weak (high impedance) source. If the input voltage drops below a determined voltage threshold (settable by a resistor divider), the boost regulator switching cycles are paused, effectively limiting the minimum input voltage. Anti-crushTM is useful in applications where a buffer capacitor at the boosts output can service burst loads, and the input source exhibits substantial source impedance (such as with an old battery, or at cold temperatures).

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