LTC3589 Linear Technology, LTC3589 Datasheet - Page 5

• Manufacturer Part Number: LTC3589
• Description: 8-Output Regulator
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
= DV
SYMBOL
LDO Regulators
t
R
Always-On Regulator (LDO1_STDBY)
V
V
I
I
V
I
LDO Regulator 2 (LDO2)
V
I
I
V
V
V
I
I
V
I
LDO Regulator 3 (LDO3)
V
I
I
V
I
I
V
LDO_SS
LDO1
LDO1_SC
LDO1_FB
VIN_LDO2
VIN
OUT2
SC2
LDO2_FB
VIN_LDO34
VIN
LDO3
LDO3_SC
LDO_PD
LDO1_FB
LDO1
DROP1
IN_LDO2
FB2(MAX)
FB2(LSB)
FB2(MIN)
DROP2
IN_LDO34
LDO3
DROP3
DD
= 3.8V. All regulators disabled unless otherwise noted.
PARAMETER
Soft-Start Time LDO2, LDO3, LDO4
Output Pull-Down Resistance LDO2, LDO3,
LDO4
LDO1 Feedback Voltage
LDO1 Line Regulation
LDO1 Load Regulation
Available Output Current
Short Circuit Output Current Limit
Dropout Voltage (Note 4)
LDO1_FB Input Current
V
V
V
V
LDO2 Maximum Feedback Voltage
LDO2 Feedback LSB Step Size
LDO2 Minimum Feedback Voltage
LDO2 Line Regulation
LDO2 Load Regulation
LDO2 Available Output Current
LDO2 Short-Circuit Current Limit
Dropout Voltage (Note 4)
LDO2_FB Input Current
V
V
V
V
LDO3 Output Voltage
LD03 Line Regulation
LDO3 Load Regulation
LDO3 Available Output Current
LDO3 Short-Circuit Current Limit
LDO3 Dropout Voltage (Note 4)
IN_LDO2
IN_LDO2
IN_LDO2
IN
IN_LDO34
IN_LDO34
IN_LDO34
IN
Quiescent Current
Quiescent Current
Input Voltage Range
Quiescent Current
Shutdown Current
Input Range
Quiescent Current
Shutdown Current
A
= 25°C (Note 2). V
CONDITIONS
LDO Disabled
I
V
I
LDO1_STBY = 3.3V
I
V
EN_LDO2 = High, LDO2_FB = 0.85V
EN_LDO2 = Low
EN_LDO2 = High
L2DTV1 = L2DTV2 = 11111
L2DTV1 = L2DTV2 = 00000
V
I
I
I
I
I
V
EN_LDO3 = High, LDO3_FB = 0.85V
Regulator Disabled
V
I
I
I
I
LDO1_STBY
LDO1
LDO1
LDO2
LDO2
LDO2
LDO2
LDO2
LDO3
LDO3
LDO3
LDO3
The
IN
LDO1_FB
IN_LDO2
LDO2_FB
IN_LDO34
= 2.7V to 5.5V
l
= 0.1mA to 25mA,
= 25mA, LDO1_STBY = 3.3V
= 1mA
=1mA, V
= 1mA to 250mA
= 200mA, V
= 200mA, V
= 1mA
=1mA, V
= 1mA to 250mA
= 200mA, V
denotes the specifi cations which apply over the full operating junction
= V
= 0.85V
= 0.8V
= V
= 1mA, LDO1_STBY = 3.3V,
IN
IN
INLDO2
INLDO34
= 2.7V to 5.5V,
IN
= 2.7V to 5V,
LDO2
LDO2
LDO3
= PV
= 2.7V to 5.5V
= 2.7V to 5.5V
= 2.5V
= 1.2V
= 1.8V
IN1
= PV
IN2
= PV
IN3
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
= PV
0.735
0.351
1.746
0.76
–0.1
–0.1
2.35
MIN
250
300
250
300
1.7
25
IN4
= V
IN_LDO2
0.3625
2000
0.75
12.5
TYP
100
180
420
130
330
420
180
0.8
0.2
0.2
0.1
0.1
1.8
0.1
0.1
65
50
50
14
14
0
0
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LTC3589
= V
IN_LDO34
0.373
0.765
1.854
MAX
0.84
100
280
600
180
500
600
250
V
V
0.1
0.1
80
24
80
19
1
1
IN
IN
UNITS
5
3589p
%/V
%/V
%/V
mA
mA
mA
mA
mA
mA
mV
mV
mV
mV
mV
μA
μA
μA
μA
μA
μA
μA
μA
μs
%
%
%
Ω
V
V
V
V
V
V