Datasheet

LTC3589/LTC3589-1/
LTC3589-2
6
3589ff
For more information www.linear.com/3589
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
LDO Regulator 4 (LDO4)
V
IN_LDO34
V
IN_LDO34
Input Range (LTC3589)
V
IN_LDO34
Input Range (LTC3589-1/LTC3589-2)
l
l
2.35
1.7
V
IN
V
IN
V
V
I
VIN_LDO34
V
IN_LDO34
Quiescent Current
V
IN_LDO34
Shutdown Current
Regulator Enabled
Regulator Disabled
l
l
14
0
24
1
µA
µA
I
VIN
Enabled V
IN
Quiescent Current
l
50 85 µA
V
LDO4
(LTC3589)
LDO 4 Output Voltage I
LDO4
= 1mA, L2DTV2[6:5] = 00
L2DTV2[6:5] = 01
L2DTV2[6:5] = 10
L2DTV2[6:5] = 11
l
l
l
l
2.716
2.425
1.746
3.201
2.8
2.5
1.8
3.3
2.884
2.575
1.854
3.399
V
V
V
V
V
LDO4
(LTC3589-1)
(LTC3589-2)
LDO 4 Output Voltage I
LDO4
= 1mA, L2DTV2[6:5] = 00
L2DTV2[6:5] = 01
L2DTV2[6:5] = 10
L2DTV2[6:5] = 11
l
l
l
l
1.164
1.746
2.425
3.104
1.2
1.8
2.5
3.2
1.236
1.854
2.575
3.296
V
V
V
V
LD04 Line Regulation I
LDO4
=1mA, V
INLDO4
= 2.7V to 5.5V,
V
OUT
= 1.8V
0.01 %/V
LDO4 Load Regulation I
LDO4
= 1mA to 250mA 0.05 %
I
LDO4
LDO4 Available Output Current
l
250 mA
I
LDO4_SC
LDO4 Short-Circuit Current Limit 300 450 600 mA
V
DROP4
LDO4 Dropout Voltage (Note 4) I
LDO4
= 200mA, V
LDO4
= 3.3V
I
LDO4
= 200mA, V
LDO4
= 1.8V
I
LDO4
= 200mA, V
LDO4
= 3.2V (LTC3589-1/
LTC3589-2)
120
190
120
160
250
160
mV
mV
mV
Enable Inputs
V
ENx_THR
Threshold Rising, All Enables Low
l
0.8 1.2 V
V
ENx_THR2
V
ENx_THF2
Threshold Rising, Any Enable High
Threshold Falling, Any Enable High
l
l
0.420
0.5
0.45
0.530 V
V
R
ENX
Input Pull-Down Resistance 4.5 MΩ
VSTB, PWR_ON Inputs
V
VSTB_THR
V
VSTB_THF
VSTB Pin Threshold Rising
VSTB Pin Threshold Falling
l
l
0.4
0.8
0.7
1.2 V
V
R
VSTB
Pull-Down Resistance 4.5 MΩ
V
PWR_ONTHR
V
PWR_ONTHF
PWR_ON Pin Threshold Rising
PWR_ON Pin Threshold Falling
l
l
0.4
0.8
0.7
1.2 V
V
R
PWR_ON
Pull-Down Resistance 4.5 MΩ
I
2
C Port
DV
DD
DV
DD
Input Supply Voltage
l
1.6 5.5 V
I
DVDD
DV
DD
Quiescent Current SCL/SDA = 0kHz 0.5 µA
V
DVDD_UVLO
DV
DD
UVLO Level 0.8 V
ADDRESS Device Address – Write
Device Address – Read
01101000
01101001
V
IH
SDA, SCL
V
IL
SDA, SCL
SDA and SCL Input Threshold Rising
SDA and SCL Input Threshold Falling
70
30
%DV
DD
%DV
DD
I
IHSCx
I
ILSCx
SDA and SCL Input Current SDA = SCL = 0V to 5.5V –250 250 nA
V
OL
SDA SDA Output Low Voltage I
SDA
= 3mA
l
0.4 V
f
SCL
SCL Clock Operating Frequency 400 kHz
elecTrical characTerisTics
The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
IN
= PV
IN1
= PV
IN2
= PV
IN3
= PV
IN4
= V
IN_LDO2
= V
IN_LDO34
= DV
DD
= 3.8V. All regulators disabled unless otherwise noted.