MIC2827 Datasheet, PDF (7/27 Pages) Micrel Semiconductor – Triple Output PMIC with HyperLight Load™ DCDC, two LDOs, and I2C Control

Micrel, Inc.
Typical Characteristics
Thermal Shutdown
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4 ^DVIN ^{= 3.6V}
V_IN = 3.6V
0.2 _{VOUT = 1.8V}
0.0
-40 0 40 80 120 160 200
T EM PERAT URE (°C)
LDO Input Voltage PSRR
90
80
70
60
50
40
30 _{DVIN = 5.5V}
20 ^VIN ^{= 3.6V}
V_OUT = 1.2V
10 C_OUT = 1µF
Load = 150mA
0
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
FREQUENCY (Hz)
Dropout Voltage
vs. Temperature
250
225 _{L = 150mA}
200
175
150
125
L = 100mA
100
75
50
25
0
-40
L = 50mA
D_VIN = 5.5V
VLDO = 2V
C_OUT = 1µF
-20 0 20 40 60 80 100 120
T EM PERAT URE (°C)
1.250
1.240
1.230
1.220
1.210
1.200
1.190
1.180
1.170
1.160
1.150
0
LDO Output Voltage
vs. Load Current
D_VIN = 5.0
V_IN = 3.6V
C_OUT = 1µF
25 50 75 100 125 150
LOAD CURRENT (mA)
July 2009
Enable Threshold
vs. Temperature
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40 -20
D_VIN = V_IN = 3.6V
0 20 40 60 80 100 120
T EM PERAT URE (°C)
LDO Output Noise
Spectral Density
10
1
0.1
D_VIN = V_IN = 5.5V
0.01 ^VOUT ^{= 1.0V}
C_OUT = 1µF
Load = 10mA
Noise = (10Hz to 100kHz)=44.77µV_RMS
0.001
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
FREQUENCY (Hz)
Dropout Voltage
vs. Temperature
200
175
L = 150mA
150
125
100
75
L = 100mA
50
25
0
-40
L = 50mA
D_VIN = 5.5V
VLDO = 3V
C_OUT = 1µF
-20 0 20 40 60 80 100 120
T EM PERAT URE (°C)
LDO Output Voltage
v s. Input Voltage
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
D_VIN = 5.5V
0.4
VLDO = 1.8V
0.2
C_OUT = 1µF
Load = 100µA
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
INPUT VO LT AG E (V)
7
MIC2827
Enable Threshold
v s. Input Voltage
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VO LT AGE (V)
Dropout Voltage
vs. Load Current
250
200
VLDO = 2V
150
VLDO = 3V
100
50
0
0
D_VIN = 5.5V
C_OUT = 1µF
25 50 75 100 125 150
LO AD CURRENT (mA)
LDO Output Voltage
vs. Temperature
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
-40 -20
D_VIN = V_IN = 3.6V
V_OUT = 1.2V
C_OUT = 1µF
Load = 100µA
0 20 40 60 80 100 120
TEM PERATURE (°C)
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
2
LDO Current Limit
v s. Input Voltage
D_VIN =5.5V
C_OUT = 1µF
2.5 3 3.5 4 4.5 5 5.5
INPUT VOLT AGE (V)
M9999-072709-A