MIC2827 Datasheet, PDF (6/27 Pages) Micrel Semiconductor – Triple Output PMIC with HyperLight Load™ DCDC, two LDOs, and I2C Control

Micrel, Inc.
MIC2827
Electrical Characteristics - LDO1, LDO2
DVIN = EN = LDO1IN = LDO2IN = 3.6V; DC-DC disabled; LDO C_OUT =1µF, LDO I_OUT = 100µA, T_A = 25°C, unless
otherwise specified. Bold values indicate -40°C≤T_J≤+125°C.
Parameter
Conditions
Min Typ Max Units
Output Voltage Accuracy
Variation from nominal V_OUT
-3.0
+3.0
%
Input voltage
I_OUT = 100µA to 150mA;
2
V
I_OUT = 100µA to 100mA; -20°C to +100°C
1.74
V
Output Voltage DVS Range
Adjustable through I²C Registers
0.8
3.3
V
Line Regulation
LDO1IN, LDO2IN = V_OUT +1V to 5.5V; I_OUT = 100µA
0.014 0.1
%/V
Load Regulation
I_OUT = 100µA to 75mA
4
mV
Dropout Voltage
I_OUT = 50mA; V_OUT = 2V
I_OUT = 150mA; V_OUT = 2V
I_OUT = 50mA; V_OUT = 3V
I_OUT = 150mA; V_OUT = 3V
70
mV
200
350
mV
50
mV
150
mV
Ground Pin Current
EN = DVIN
1 LDO enabled
50
µA
2 LDOs enabled
83
µA
Ripple Rejection
f = up to 1kHz; C_OUT = 1µF; V_OUT = 2.5V
f = 1kHz - 10kHz; C_OUT = 1µF V_OUT = 2.5V
65
dB
45
dB
Current Limit
V_OUT = 0V
190 400
550
mA
Output Voltage Noise
C_OUT = 1µF,10Hz to 100kHz
45
µV_RMS
Auto-Discharge NFET
resistance
280
Ω
Electrical Characteristics – I²C Interface
DVIN = EN = 3.6V, T_A = 25°C, unless otherwise specified. Bold values indicate -40°C≤T_J≤+125°C.
Parameter
Conditions
Min Typ Max Units
LOW-Level Input Voltage
0.2
V
HIGH-Level Input Voltage
1.2
V
SDA Pull-down resistance
Open drain pull-down on SDA during read back
80
Ω
IRQb Pull-down resistance
Open drain pull-down
55
Ω
July 2009
6
M9999-072709-A