EM250-BBRD-R Ember, EM250-BBRD-R Datasheet - Page 106

• Manufacturer Part Number: EM250-BBRD-R
• Description: EM250 BREAKOUT BOARD
• Manufacturer: Ember
• Type: Transceiver, 802.15.4r

Specifications of EM250-BBRD-R

• Frequency: 2.4GHz
• For Use With/related Products: EM250
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 636-1024

EM250
5.7
120-0082-000S
Integrated Voltage Regulator
The EM250 integrates a low dropout regulator to provide an accurate core voltage at a low quiescent current.
Table 38 lists the specifications for the integrated voltage regulator. With the regulator enabled, the pads
supply voltage VDD_PADS is stepped down to the 1.8V regulator output VREG_OUT. The VREG_OUT signal must
be externally decoupled and routed to the 1.8V core supply pins VDD_24MHZ, VDD_VCO, VDD_RF, VDD_IF,
VDD_PRE, VDD_SYNTH, VDD_PADSA, VDD_CORE, and VDD_FLASH.
In addition, the regulator can be operated with several configurations of external load capacitors and decoup-
ling capacitors. The EM250 Reference Design details the different configurations recommended by Ember.
Spec Point
Supply range for regulator
Regulated output
PSRR
Supplied current
Current
Quiescent current
Table 38. Integrated Voltage Regulator Specifications
Min.
2.1
1.7
0
Typ.
200
1.8
10
Page 106
Max.
- 40
3.6
1.9
50
Units
mA
dB
μA
nA
V
V
Comments
VDD_PADS
@100KHz
No load current (bandgap, regulator,
feedback)