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TPS562201 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS562201 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 24 page TPS562201, TPS562208 www.ti.com SLVSD91 – DECEMBER 2015 7.4 Device Functional Modes 7.4.1 Normal Operation When the input voltage is above the UVLO threshold and the EN voltage is above the enable threshold, the TPS562200 can operate in their normal switching modes. Normal continuous conduction mode (CCM) occurs when the minimum switch current is above 0 A. In CCM, the TPS562208 operates at a quasi-fixed frequency of 580 kHz. 7.4.2 Eco-mode Operation When the TPS562201 and TPS562208 are in the normal CCM operating mode and the switch current falls to 0 A, the TPS562200 begins operating in pulse skipping Eco-mode. Each switching cycle is followed by a period of energy saving sleep time. The sleep time ends when the VFB voltage falls below the Eco-mode threshold voltage. As the output current decreases, the perceived time between switching pulses increases. 7.4.3 Standby Operation When the TPS562201 and TPS562208 are operating in either normal CCM or Eco-mode, they may be placed in standby by asserting the EN pin low. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS562201 TPS562208 |
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