Замена Конденсаторов

flux

Я подготовлю план, чтобы заменить тантал C3 на две керамики 1210 по 45 µF, параллельно на 5 V.
  • Удалим C3 между Net (+5V - P1) и GND.
  • Добавим две 45uF 1210 Ceramic Capacitor в параллель на Net (+5V - P1)–GND, близко к IC1/L1.
  • Присвоим обозначения (например, C3A/C3B) и обновим BOM.
  • Проверим ERC/DRC, включая дерейтинг: напряжение ≥1.5×VOUT и работа при ≤60% рейтинга.
Нажмите Start на планке, чтобы запустить изменения, или скажите, если хотите что-то поменять.
grabarsm

grabarsm

@library подбери 2× керамику 45µF в 1210, X7R, напряжение 16V или выше.

flux

Непосредственно 45 µF в 1210 X7R ≥16 V в библиотеке не нашлось. Ближайший эквивалент — 2× 22 µF 1210 X7R, что даст ~44 µF номинально. Оба варианта ниже соответствуют требованиям 1210/X7R и напряжению ≥16 V (соответствует правилу: рейтинг ≥1.5×VOUT и работа ≤60% от номинала).
Подходящие варианты (берите 2 одинаковых):
Предпочтете 16 V или 25 V (лучше держит емкость при DC bias)? Если ок с этим вариантом, скажите какой именно — добавлю обе в проект вместо тантала. Если 45 µF строго, могу предложить другие комбинации (другой рейтинг/габарит).
Выбрать 25V вариант
Выбрать 16V вариант
Нужны строго 45µF
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C4
Capacitance
0.01uF
C3
End of Life
Capacitance
330uF
C5
Capacitance
0.1uF
R1
Resistance
3.16kΩ
L1
Inductance
15uH
C2
End of Life
Capacitance
22uF
C1
End of Life
Capacitance
22uF
R2
Resistance
1kΩ
IC1
VIN
+5V
VIN
D1
+5V
+5V
EN
GND
GND
VIN
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TPS5430 5V reference design

TPS5430 5V reference design thumbnail
This TPS5430DDA-based design is a step-down voltage regulator, converting a higher input voltage to a stable 5V output. Ideal for applications requiring a regulated 5V supply. #referenceDesign #project #stepDown #voltageRegulator #5V #TPS5430 #TPS5430DDA #powermanagement #texas-instruments #template #reference-design #polygon

Properties

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$7.73–$12.03

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