Adding Components

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When selecting the 1 µF X7R 0805 capacitor for VOUT on the ME6211C33M5G-N, consider:
  • Stability and ESR
    • The datasheet requires CIN/COUT ≥ 1 µF, ceramic X5R/X7R dielectric, ESR ≤ 1 Ω for loop stability.
    • X7R maintains capacitance over –55 °C to +125 °C, minimizing output ripple under load transients.
  • Voltage rating
    • Choose a voltage rating ≥ 1.5× your max input (e.g. 16 V or higher) to ensure derating and reliability.
  • Footprint
    • 0805 offers a good balance of capacitance density and PCB assembly ease; ensure it sits as close as possible to the regulator pins.
Component comparisons:

Table

PartVoltage RatingToleranceTypical ESRNotes
C2012X7R1C105K125AA16 V±10 %≤ 0.5 ΩMurata, widely used in power rails
1 µF 0805 Capacitor35 V±10 %≤ 0.7 ΩHigher voltage margin, general purpose
CC0805KKX7R8BB10525 V±10 %≤ 0.6 ΩTDK, good balance of cost and performance
Place your chosen cap right at the regulator’s VOUT pin to minimize trace inductance.
Add Murata cap
Parallel HF bypass
Select VIN input cap
Placement distance
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Files

Schematic

Layout

3D View

R3
Resistance
10kΩ
R1
Resistance
10kΩ
R4
Resistance
100 Ω
R5
Resistance
10kΩ
R2
Resistance
100 Ω
P3
PP5V0
C7
Capacitance
1uF
C13
Capacitance
1uF
C23
Capacitance
.1uF
C9
Capacitance
1uF
C18
Capacitance
1uF
C20
Capacitance
1uF
PP3V3
PP3V3
C10
Capacitance
1uF
PP3V3_SPI
C26
Capacitance
4.7µF
PP3V3
C15
Capacitance
1uF
PP5V0
C5
Capacitance
1uF
PP5V0
PP3V3
C12
Capacitance
1uF
C11
Capacitance
1uF
PP5V0
C24
Capacitance
1uF
PP12V0
C31
Capacitance
.1uF
PP3V3
PP3V3
PG_PP5V0
USBC2.0_D_N
SPI_MISO
I2C_SDA
PG_PP5V0
C2
Manufacturer Part Number
OPT
SPI_SCK
USBC2.0_D_P
I2C_SCL
LOAD_CELL_A1_P
R7
Resistance
100kΩ
SPI_SCK
LOAD_CELL_A1_P
VOS
INT_ADC_DRDY
LOAD_CELL_AI_N
C8
Capacitance
13pF
GPIO_SW1
I2C_SDA
GPIO_SW2
SPI_MISO
C6
Capacitance
1.2pF
SPI_MOSI
LOAD_CELL_AI_N
I2C_SCL
SPI_CS
VOS
SPI_CS
SPI_MOSI
C4
Capacitance
13pF
H4
H1
C25
Capacitance
22uF
Y1
H2
J2
H3
U2
Part Type
Linear Voltage Regulator
C22
Capacitance
10uF
MCU_TXD
C21
Capacitance
10uF
U1
Part Type
Integrated Circuit
Manufacturer Part Number
NAU7802SGI
U3
Part Type
Switching Regulator
Manufacturer Part Number
TPS62130ARGTR
Y2
C30
Capacitance
10uF
C1
Capacitance
10uF
MCU_RXD
C19
Capacitance
10uF
MCU_BOOT
L1
Inductance
2.2nH
R8
Resistance
953kΩ
IC1
Manufacturer Part Number
ESP32-C3
L4
R6
Resistance
180kΩ
L2
Inductance
2.2nH
L3
Inductance
2.2uH
J1
R9
Manufacturer Part Number
0402WGF1002TCE

Auto-Layout Example May 2025