Power Consumption (ESP32-S2)

Operating Modes

Operating Mode	Nominal Value	Unit
Modem Sleep (CPU active, Freq = 240 MHz, all RTC peripherals active)	32	mA
Modem Sleep (CPU active, Freq = 240 MHz, all RTC peripherals inactive)	23	mA
Modem Sleep (CPU idle, Freq = 240 MHz, all RTC peripherals active)	28	mA
Modem Sleep (CPU idle, Freq = 240 MHz, all RTC peripherals inactive)	20	mA
Modem Sleep (CPU active, Freq = 160 MHz, all RTC peripherals active)	24	mA
Modem Sleep (CPU active, Freq = 160 MHz, all RTC peripherals inactive)	16	mA
Modem Sleep (CPU idle, Freq = 160 MHz, all RTC peripherals active)	21	mA
Modem Sleep (CPU idle, Freq = 160 MHz, all RTC peripherals inactive)	14	mA
Modem Sleep (CPU active, Freq = 80 MHz, all RTC peripherals active)	20	mA
Modem Sleep (CPU active, Freq = 80 MHz, all RTC peripherals inactive)	12	mA
Modem Sleep (CPU idle, Freq = 80 MHz, all RTC peripherals active)	18.4	mA
Modem Sleep (CPU idle, Freq = 80 MHz, all RTC peripherals inactive)	10.5	mA
Light Sleep (Wi-Fi and SPI power off, all I/O pins high-impedance)	750	µA
Deep Sleep (ULP active, ULP-FSM)	170	µA
Deep Sleep (ULP active, ULP-RISC-V)	190	µA
Deep Sleep (ULP periodically active, 1% duty cycle)	22	µA
Deep Sleep (RTC timer, RTC memory)	25	µA
Deep Sleep (RTC timer)	20	µA
Power Off	1	µA

In Modem Sleep modes, power consumption may increase depending on flash memory access.
In Deep Sleep (ULP active) modes, while the ULP coprocessor is running, internal peripherals such as GPIO and I2C may continue operating.

All measurements were performed at an ambient temperature of 25 °C with a 3.3 V supply voltage.
Transmit mode measurements were carried out with a 100% duty cycle.
During receive mode measurements, all peripherals were disabled and the CPU was idle.