Data Sheet

4 Electrical Characteristics
Table 6 – cont’d from previous page
Symbol Parameter Min Typ Max Unit
I
OH
High-level source current
(VDD
1
= 3.3 V,
V
OH
>= 2.64 V,
output drive strength set
to the maximum)
VDD3P3_CPU
power domain
1, 2
— 40 — mA
VDD3P3_RTC
power domain
1, 2
— 40 — mA
VDD_SDIO power
domain
1, 3
— 20 — mA
I
OL
Low-level sink current
(VDD
1
= 3.3 V, V
OL
= 0.495 V,
output drive strength set to the maximum)
— 28 — mA
R
P U
Resistance of internal pull-up resistor — 45 — kΩ
R
P D
Resistance of internal pull-down resistor — 45 — kΩ
V
IL_nRST
Low-level input voltage of CHIP_PU
to power off the chip
— — 0.6 V
1
Please see Appendix IO MUX of ESP32 Series Datasheet for IO’s power domain. VDD is the I/O voltage
for a particular power domain of pins.
2
For VDD3P3_CPU and VDD3P3_RTC power domain, per-pin current sourced in the same domain is
gradually reduced from around 40 mA to around 29 mA, V
OH
>=2.64 V, as the number of current-
source pins increases.
3
Pins occupied by flash and/or PSRAM in the VDD_SDIO power domain were excluded from the test.
4.4 Current Consumption Characteristics
Owing to the use of advanced power-management technologies, the module can switch between different power
modes. For details on different power modes, please refer to Section RTC and Low-Power Management
in ESP32 Series Datasheet.
Table 7: Current Consumption Depending on RF Modes
Work mode Description Peak (mA)
Active (RF working)
TX
802.11b, 20 MHz, 1 Mbps, @19.5 dBm 368
802.11g, 20 MHz, 54 Mbps, @14 dBm 258
802.11n, 20 MHz, MCS7, @13 dBm 248
802.11n, 40 MHz, MCS7, @13 dBm 250
RX
2
802.11b/g/n, 20 MHz 111
802.11n, 40 MHz 117
1
The current consumption measurements are taken with a 3.3 V supply at 25 °C of ambient
temperature at the RF port. All transmitters’ measurements are based on a 100% duty cycle.
2
The current consumption figures for in RX mode are for cases when the peripherals are dis-
abled and the CPU idle.
Espressif Systems 14
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ESP32-PICO-MINI-02 & PICO-MINI-02U Datasheet v1.0