Texas Instruments 3138 155 232931 - Manual (Page 13)

CC2420
SWRS041B Page 13 of 89
6.8 Voltage Regulator
Parameter Min. Typ. Max. Unit Condition / Note
General Note that the internal voltage
regulator can only supply
CC2420 and no external circuitry.
Input Voltage 2.1 3.0 3.6 V On the VREG_IN pin
Output Voltage 1.7 1.8 1.9 V On the VREG_OUT pin
Quiescent current 13 20 29 µA No current drawn from the
VREG_OUT
pin. Min and max
numbers include 2.1 through 3.6
V input voltage
Start-up time 0.3 0.6 ms
6.9 Battery Monitor
Parameter Min. Typ. Max. Unit Condition / Note
Current consumption 6 30 90 µA When enabled
Start-up time 100 µs Voltage regulator already enabled
Settling time 2 µs New toggle voltage programmed
Step size 50 mV
Hysteresis 10 mV
Absolute accuracy -80 80 mV May be software calibrated for
known reference voltage
Relative accuracy -50 50 mV
6.10 Power Supply
Parameter Min. Typ. Max. Unit Condition / Note
Current consumption in different
modes (see Figure 25, page 44)
Voltage regulator off (OFF)
Power Down mode (PD)
Idle mode (IDLE)
0.02
20
426 1
µA
µA
µA
Current drawn from VREG_IN,
through voltage regulator
Voltage regulator off
Voltage regulator on
Including crystal oscillator and
voltage regulator
Current Consumption,
receive mode 18.8 mA