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LMZ34202RVQT Arkusz danych(PDF) 4 Page - Texas Instruments |
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LMZ34202RVQT Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 31 page 4 LMZ34202 SNVSAJ2 – MARCH 2016 www.ti.com Product Folder Links: LMZ34202 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Pin Functions (continued) PIN TYPE (1) DESCRIPTION NAME NO. PWRGD_PU 21 I An internal 100 k pull-up resistor is connected between this pin and the PWRGD pin. If use of this internal pull-up resistor is desired, connect this pin to an appropriate voltage source that is less than or equal to 12 V. If unused, leave this pin floating. RT 9 I This pin is connected to internal frequency setting circuitry which sets the default switching frequency to 500 kHz. An external resistor can be connected from this pin to AGND to adjust the switching frequency. Refer to application section in datasheet. RTSEL 10 I This pin can be used to adjust the switching frequency to 1 MHz without the need for an external resistor. Connect this pin to AGND to adjust the frequency to 1 MHz. Otherwise, leave this pin floating. SENSE+ 22 I Remote sense connection. This pin must be connected to VOUT at the load or at the device pins. Connect the pin to VOUT at the load for improved regulation. SS/TR 25 I soft-start and tracking pin. Connecting an external capacitor to this pin adjusts the output voltage soft-start ramp above its 4.1 ms default setting. A voltage applied to this pin allows for tracking and sequencing control. VADJ 24 I Connecting a resistor between this pin and AGND adjusts the output voltage. VBSEL 7 I Selectable internal bias supply. For output voltages ≥ 4.5 V, connect this pin to VOUT. For output voltages < 4.5 V, connect this pin to AGND. VERSA- COMP 23 I Connects to internal compensation network. This pin can be left floating or connected to the VADJ pin to select the proper compensation depending on the output voltage. VOUT 13, 14, 15, 16, 17, 18, 43 O Output voltage. These pins are connected to the internal output inductor. Connect these pins to the output load and connect external bypass capacitors between these pins and PGND close to the device. |
Podobny numer części - LMZ34202RVQT |
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Podobny opis - LMZ34202RVQT |
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