ST STEVAL-STWINBX1 - Power Management; Figure 15. Power Management of the Stwin.box Core System Board; Figure 16. Power and Protections

• X1, which is a 16 MHz high speed external (HSE) oscillator for the MCU;
•
X2, which is a 32.768 kHz low speed external (LSE) oscillator for the RTC embedded in the MCU.
1.6.3 Power management
The STWIN.box core system board includes a wide range of power management features that enable very low
power consumption in final applications.
The main supply is a lithium ion polymer battery (3.7 V
, 480 mAh) and the integrated battery charger (STBC02)
with V
IN
from 4.8 to 5.5 V.
The STWIN core system board includes a range of power management features that enable very low power
consumption in final applications. The main supply is through a lithium ion polymer battery (3.7 V, 480 mAh) and
the integrated battery charger (STBC02) with Vin [4.8 -5.5 V].
Figure 15. Power management of the STWIN.box core system board
Figure 16. Power and protections
Power management IC
•
U1: EMIF06-MSD02N16 six-line IPAD, EMI filter and ESD protection
• U10: LDLN025PU275R, 250 mA ultra low noise LDO
UM2965
Functional blocks
UM2965 - Rev 1
page 17/58