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TPS61031 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS61031 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 31 page Anti- Ringing Gate Control PGND Regulator PGND Control Logic Oscillator Temperature Control VOUT PGND FB SW VBAT EN SYNC GND LBI LBO _ + 100 kW 10 pF _ + VREF = 0.5 V GND Error Amplifier _ + _ + GND VREF = 0.5 V Low Battery Comparator TPS61030, TPS61031, TPS61032 www.ti.com SLUS534G – SEPTEMBER 2002 – REVISED MARCH 2015 10 Detailed Description 10.1 Overview The TPS6103x synchronous step-up converter typically operates at a 600 kHz frequency pulse width modulation (PWM) at moderate to heavy load currents. The converter enters Power Save mode at low load currents to maintain a high efficiency over a wide load. The Power Save mode can also be disabled, forcing the converter to operate at a fixed switching frequency. The TPS6103x family is based on a fixed frequency with multiple feed forward controller topology. Input voltage, output voltage, and voltage drop on the NMOS switch are monitored and forwarded to the regulator. The peak current of the NMOS switch is also sensed to limit the maximum current flowing through the switch and the inductor. It can also operate synchronized to an external clock signal that is applied to the SYNC pin. Additionally, TPS6103x integrated the low-battery detector circuit typically used to supervise the battery voltage and to generate an error flag when the battery voltage drops below a user-set threshold voltage. 10.2 Functional Block Diagram Copyright © 2002–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS61030 TPS61031 TPS61032 |
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