Datasheet

4. Electrical Characteristics
Note:
1. VDD is the I/O voltage for a particular power domain of pins.
2. V
OH
and V
OL
are measured using high-impedance load.
4.4 Current Consumption Characteristics
With 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-
S2 Datasheet.
Table 7: Current Consumption Depending on RF Modes
Work mode Description Average Peak
Active (RF working)
TX
802.11b, 20 MHz, 1 Mbps, @19.5 dBm 190 mA 310 mA
802.11g, 20 MHz, 54 Mbps, @15 dBm 145 mA 220 mA
802.11n, 20 MHz, MCS7, @13 dBm 135 mA 200 mA
802.11n, 40 MHz, MCS7, @13 dBm 120 mA 160 mA
RX
802.11b/g/n, 20 MHz 63 mA 63 mA
802.11n, 40 MHz 68 mA 68 mA
Note:
• 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 50% duty cycle.
• The current consumption figures for in RX mode are for cases when the peripherals are disabled and the CPU idle.
Table 8: Current Consumption Depending on Work Modes
Work mode Description Current consumption (Typ)
Modem-sleep
The CPU is
powered on
240 MHz 22 mA
160 MHz 17 mA
Normal speed: 80 MHz 14 mA
Light-sleep — 550 µA
Deep-sleep
The ULP co-processor is powered on. 235 µA
ULP sensor-monitored pattern 22 µA @1% duty
RTC timer + RTC memory 25 µA
RTC timer only 20 µA
Power off CHIP_PU is set to low level, the chip is powered off. 1 µA
Note:
• The current consumption figures in Modem-sleep mode are for cases where the CPU is powered on and the cache
idle.
• When Wi-Fi is enabled, the chip switches between Active and Modem-sleep modes. Therefore, current consump-
Espressif Systems 14
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ESP32-S2-WROOM & ESP32-S2-WROOM-I Datasheet V1.1