SLWSTK6020A Datasheet, PDF (18/102 Pages) Silicon Laboratories – EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet

EFR32BG1 Blue Gecko Bluetooth® Smart SoCFamily Data Sheet
Electrical Specifications
4.1.4 DC-DC Converter
Test conditions: L_DCDC=4.7 µH, C_DCDC=1.0 µF (Murata GRM188R71A105KA61D), V_{DCDC_I}=3.3 V, V_{DCDC_O}=1.8 V, I_{DCDC_LOAD}=50
mA, Heavy Drive configuration, F_{DCDC_LN}=8 MHz, unless otherwise indicated.
Table 4.4. DC-DC Converter
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input voltage range
V_{DCDC_I}
Bypass mode, Strong Bypass with TBD
—
PMOS enabled, assumes inductor
DCR of 140 mOhms, I_{DCDC_LOAD}
= 50 mA
3.8
V
Low noise (LN) mode, 1.8 V out-
2.4
—
3.8
V
put, I_{DCDC_LOAD} = 100 mA, or
Low power (LP) mode, 1.8 V out-
put, I_{DCDC_LOAD} = 10 mA
Low noise (LN) mode, 1.8 V out-
TBD
—
put, I_{DCDC_LOAD} = 200 mA
3.8
V
Output voltage programma- V_{DCDC_O}
ble range
1.8V configuration
TBD
1.8
—
V
Regulation DC Accuracy
ACC_DC
Low noise (LN) mode, 1.8 V target TBD
—
TBD
mV
output
Low power (LP) mode,
TBD
—
TBD
mV
LPCMPBIAS¹ = 0, 1.8 V target
output, I_{DCDC_LOAD} = 200 μA
Low power (LP) mode,
TBD
—
TBD
mV
LPCMPBIAS¹ = 3, 1.8 V target
output, I_{DCDC_LOAD} = 10 mA
Steady-state output ripple V_R
Radio disabled.
—
3
—
mVpp
Output voltage under/over- V_OV
shoot
CCM Mode (LNFORCECCM¹ =
—
1), Load changes between 0 mA
and 100 mA
—
150
mV
DCM Mode (LNFORCECCM¹ =
—
0), Load changes between 0 mA
and 10 mA
—
150
mV
DC line regulation
V_REG
Input changes between 3.8 V and
—
0.1
—
%
2.4 V
DC load regulation
I_REG
Load changes between 0 mA and
—
0.1
—
%
100 mA in CCM mode
Max load current
I_{LOAD_MAX}
Low noise (LN) Heavy Drive²
—
—
200
mA
Low noise (LN) mode, Medium
—
Drive²
—
100
mA
Low noise (LN) mode, Light
Drive²
—
—
50
mA
Low power (LP) mode,
LPCMPBIAS¹ = 3
—
—
10
mA
DCDC output capacitor
C_DCDC
25% tolerance
TBD
1
TBD
μF
DCDC output inductor
L_DCDC
20% tolerance
—
4.7
—
μH
silabs.com | Smart. Connected. Energy-friendly.
Preliminary Rev. 0.9 | 17