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ZSPM1501ZA1W0 Datasheet(PDF) 36 Page - Integrated Device Technology |
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ZSPM1501ZA1W0 Datasheet(HTML) 36 Page - Integrated Device Technology |
36 / 101 page ZSPM15xx Datasheet © 2016 Integrated Device Technology, Inc. 36 January 27, 2016 4.2. Device-Specific Passive Components Each product in the ZSPM15xx family requires external device-specific passive components. These are listed in the following tables. If specified in the following tables, the feedback divider (R4, R5) is mandatory to achieve the specified output voltage. The control loop has been optimized for the inductance specified, but inductors from different venders can be used. Note: The ZSPM15xx has been optimized for the specific Würth inductors recommended in the following tables depending on the ZSPM15xx product number. If a different inductor is used, its specifications should be comparable to the recommended Würth inductor; otherwise the full optimization provided by the ZSPM15xx might not be achieved. If a different inductor is used, the current sense components (R6, R7, C8) must be recalculated according to section 4.4. Components specified as DNP must not be placed. Table 4.2 Passive Components for the ZSPM1501, ZSPM1502, and ZSPM1503 Reference Designator Component Value Description Feedback divider R4 DNP Output voltage feedback divider bottom resistor. Important: Do not place R4 for the ZSPM1501, ZSPM1502, and ZSPM1503. R5 1.0k Ω Output voltage feedback divider top resistor. Connect between the output terminal and the VFBP pin. Inductor and current sensing L1 L=330nH Recommended inductor: Würth WE-HCM 744301033. R6, R7 1050 Ω DCR current-sense filter resistors. C8, C9 1000nF DCR current-sense filter capacitor. Table 4.3 Passive Components for the ZSPM1504, ZSPM1505, and ZSPM1506 Reference Designator Component Value Description Feedback divider R4 1k Ω Output voltage feedback divider bottom resistor. R5 750 Ω Output voltage feedback divider top resistor. Connect between the output terminal and the VFBP pin. Inductor and current sensing L1 L=470nH Recommended inductor: Würth WE-HCM 744301047. R6, R7 1000 Ω DCR current-sense filter resistors. C8, C9 1000nF DCR current-sense filter capacitor. |
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