Specifications

CC1101
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Reduced Battery Current using
TPS62730
 The TPS62730 [26] is a step down
converter with bypass mode for ultra low
power wireless applications.
 In RX, the current drawn from a 3.6 V
battery is typically less than 11 mA when
TPS62730 output voltage is 2.1 V. When
connecting CC1101 directly to a 3.6 V
battery the current drawn is typically 17
mA (see Figure 1)
 In TX, at maximum output power (+12
dBm), the current drawn from a 3.6 V
battery is typically 22 mA when TPS62730
output voltage is 2.1 V. When connecting
CC1101 directly to a 3.6 V battery the
current drawn is typically 34 mA (see
Figure 2).
 When CC1101 enters SLEEP mode, the
TPS62730 can be put in bypass mode for
very low power down current
 The typical TPS62730 current consumption
is 30 nA in bypass mode.
 The CC1101 is connected to the battery via
an integrated 2.1 Ω (typical) switch in
bypass mode
Figure 1: Typical RX Battery Current vs Battery Voltage
Figure 2: Typical TX Battery Current vs Battery Voltage at Maximum CC1101 Output Power (+12
dBm)