EFR32BG1B232 Datasheet, PDF (24/163 Pages) Silicon Laboratories – EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet

EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet
Electrical Specifications
4.1.4 DC-DC Converter
Test conditions: L_DCDC=4.7 µH (Murata LQH3NPN4R7MM0L), 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}=7 MHz, unless otherwise indicated.
Table 4.4. DC-DC Converter
Parameter
Input voltage range
Symbol
V_{DCDC_I}
Output voltage programma-
ble range¹
Regulation DC Accuracy
V_{DCDC_O}
ACC_DC
Regulation Window²
WIN_REG
Steady-state output ripple V_R
Output voltage under/over- V_OV
shoot
DC line regulation
DC load regulation
V_REG
I_REG
Test Condition
Bypass mode, I_{DCDC_LOAD} = 50
mA
Low noise (LN) mode, 1.8 V out-
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-
put, I_{DCDC_LOAD} = 200 mA
Min
1.85
2.4
2.6
1.8
Low noise (LN) mode, 1.8 V target
1.7
output
Low power (LP) mode,
LPCMPBIAS³ = 0, 1.8 V target
output, I_{DCDC_LOAD} ≤ 75 μA
Low power (LP) mode,
LPCMPBIAS³ = 3, 1.8 V target
output, I_{DCDC_LOAD} ≤ 10 mA
Radio disabled.
1.63
1.63
—
CCM Mode (LNFORCECCM³ =
—
1), Load changes between 0 mA
and 100 mA
DCM Mode (LNFORCECCM³ =
—
0), Load changes between 0 mA
and 10 mA
Overshoot during LP to LN
—
CCM/DCM mode transitions com-
pared to DC level in LN mode
Undershoot during BYP/LP to LN
—
CCM (LNFORCECCM³ = 1) mode
transitions compared to DC level
in LN mode
Undershoot during BYP/LP to LN
—
DCM (LNFORCECCM³ = 0) mode
transitions compared to DC level
in LN mode
Input changes between
—
V_{VREGVDD_MAX} and 2.4 V
Load changes between 0 mA and
—
100 mA in CCM mode
Typ
—
—
Max
V_{VREGVDD_}
MAX
V_{VREGVDD_}
MAX
Unit
V
V
—
V_{VREGVDD_}
V
MAX
—
V_VREGVDD
V
—
1.9
V
—
2.2
V
—
2.1
V
3
—
mVpp
—
150
mV
—
150
mV
200
—
mV
50
—
mV
125
—
mV
0.1
—
%
0.1
—
%
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