LTC3589_12 Datasheet, PDF (6/50 Pages) Linear Technology – 8-Output Regulator with Sequencing and I2C

LTC3589/LTC3589-1/
LTC3589-2
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.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LDO Regulator 4 (LDO4)
V_{IN_LDO34}
I_{VIN_LDO34}
I_VIN
V_LDO4
(LTC3589)
V_{IN_LDO34} Input Range (LTC3589)
V_{IN_LDO34} Input Range (LTC3589-1/LTC3589-2)
V_{IN_LDO34} Quiescent Current
V_{IN_LDO34} Shutdown Current
Regulator Enabled
Regulator Disabled
Enabled V_IN Quiescent Current
LDO 4 Output Voltage
I_LDO4 = 1mA, L2DTV2[6:5] = 00
L2DTV2[6:5] = 01
L2DTV2[6:5] = 10
L2DTV2[6:5] = 11
l 2.35
l 1.7
V_IN
V
V_IN
V
l
14
24
μA
l
0
1
μA
l
50
85
μA
l 2.716 2.8 2.884
V
l 2.425 2.5 2.575
V
l 1.746 1.8 1.854
V
l 3.201 3.3 3.399
V
V_LDO4
LDO 4 Output Voltage
(LTC3589-1)
(LTC3589-2)
I_LDO4 = 1mA, L2DTV2[6:5] = 00
L2DTV2[6:5] = 01
L2DTV2[6:5] = 10
L2DTV2[6:5] = 11
l 1.164 1.2 1.236
V
l 1.746 1.8 1.854
V
l 2.425 2.5 2.575
V
l 3.104 3.2 3.296
V
I_LDO4
I_{LDO4_SC}
V_DROP4
LD04 Line Regulation
LDO4 Load Regulation
LDO4 Available Output Current
LDO4 Short-Circuit Current Limit
LDO4 Dropout Voltage (Note 4)
I_LDO4 =1mA, V_INLDO4 = 2.7V to 5.5V,
V_OUT = 1.8V
0.01
%/V
I_LDO4 = 1mA to 250mA
0.05
%
l 250
mA
300
450
600
mA
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)
120 160
mV
190 250
mV
120 160
mV
Enable Inputs
V_{ENx_THR} Threshold Rising, All Enables Low
V_{ENx_THR2} Threshold Rising, Any Enable High
V_{ENx_THF2} Threshold Falling, Any Enable High
R_ENX
Input Pull-Down Resistance
VSTB, PWR_ON Inputs
l
0.8
1.2
V
l
0.5 0.530
V
l 0.420 0.45
V
4.5
MΩ
V_{VSTB_THR} VSTB Pin Threshold Rising
V_{VSTB_THF} VSTB Pin Threshold Falling
R_VSTB
Pull-Down Resistance
V_{PWR_ONTHR} PWR_ON Pin Threshold Rising
V_{PWR_ONTHF} PWR_ON Pin Threshold Falling
R_{PWR_ON}
I²C Port
Pull-Down Resistance
l
0.8
1.2
V
l 0.4
0.7
V
4.5
MΩ
l
0.8
1.2
V
l 0.4
0.7
V
4.5
MΩ
DV_DD
I_DVDD
V_{DVDD_UVLO}
ADDRESS
DV_DD Input Supply Voltage
DV_DD Quiescent Current
DV_DD UVLO Level
Device Address – Write
Device Address – Read
SCL/SDA = 0kHz
l 1.6
5.5
V
0.5
μA
0.8
V
01101000
01101001
V_IH SDA, SCL SDA and SCL Input Threshold Rising
V_IL SDA, SCL SDA and SCL Input Threshold Falling
I_IHSCx I_ILSCx SDA and SCL Input Current
V_OL SDA SDA Output Low Voltage
f_SCL
SCL Clock Operating Frequency
SDA = SCL = 0V to 5.5V
I_SDA = 3mA
70
–250
l
%DV_DD
30 %DV_DD
250
nA
0.4
V
400
kHz
3589fe
6