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ISL6236IRZA-T View Datasheet(PDF) - Intersil

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Description
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ISL6236IRZA-T Datasheet PDF : 35 Pages
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ISL6236
Electrical Specifications
No load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C. Boldface
limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
Undervoltage-Lockout Fault Threshold
Rising edge of PVCC
4.35
4.5
V
Falling edge of PVCC
3.9
4.05
LDO 5V Bootstrap Switch Threshold to BYP Rising edge at BYP regulation point
LDOREFIN = GND
4.53
4.68
4.83
V
LDO 3.3V Bootstrap Switch Threshold to
BYP
Rising edge at BYP regulation point
LDOREFIN = VCC
3.0
3.1
3.2
V
LDO 5V Bootstrap Switch Equivalent
Resistance
LDO to BYP, BYP = 5V, LDOREFIN > (VCC -1V) (Note 5)
0.7
1.5
Ω
LDO 3.3V Bootstrap Switch Equivalent
Resistance
LDO to BYP, BYP = 3.3V, LDOREFIN < 0.3V (Note 5)
1.5
3.0
Ω
VREF3 Output Voltage
No external load, VCC > 4.5V
3.235 3.300 3.365
V
No external load, VCC < 4.0V
3.220 3.300 3.380
V
VREF3 Load Regulation
VREF3 Current Limit
0 < ILOAD < 5mA
VREF3 = GND
10
mV
10
17
mA
REF Output Voltage
No external load
1.980 2.000 2.020
V
REF Load Regulation
REF Sink Current
0 < ILOAD < 50µA
REF in regulation
10
mV
10
µA
VIN Operating Supply Current
VIN Standby Supply Current
VIN Shutdown Supply Current
Quiescent Power Consumption
FAULT DETECTION
Both SMPSs on, FB1 = SKIP = GND, REFIN2 = VCC
VOUT1 = BYP = 5.3V, VOUT2 = 3.5V
VIN = 5.5V to 25V, both SMPSs off, EN LDO = VCC
VIN = 4.5V to 25V, EN1 = EN2 = EN LDO = 0V
Both SMPSs on, FB1 = SKIP = GND, REFIN2 = VCC,
VOUT1 = BYP = 5.3V, VOUT2 = 3.5V
25
50
µA
180
250
µA
20
30
µA
5
7
mW
Overvoltage Trip Threshold
FB1 with respect to nominal regulation point
+8
+11
+14
%
REFIN2 with respect to nominal regulation point
+12
+16
+20
%
Overvoltage Fault Propagation Delay
FB1 or REFIN2 delay with 50mV overdrive
10
µs
POK Threshold
FB1 or REFIN2 with respect to nominal output, falling
-12
-9
-6
%
edge, typical hysteresis = 1%
POK Propagation Delay
Falling edge, 50mV overdrive
10
µs
POK Output Low Voltage
POK Leakage Current
ISINK = 4mA
High state, forced to 5.5V
0.2
V
1
µA
Thermal-Shutdown Threshold
+150
°C
Out-Of-Bound Threshold
FB1 or REFIN2 with respect to nominal output voltage
5
%
Output Undervoltage Shutdown Threshold FB1 or REFIN2 with respect to nominal output voltage
65
70
75
%
Output Undervoltage Shutdown Blanking
Time
From EN signal
10
20
30
ms
INPUTS AND OUTPUTS
FB1 Input Voltage
Low level
0.3
V
High level
VCC - 1.0
V
REFIN2 Input Voltage
OUT2 Dynamic Range, VOUT2 = VREFIN2
Fixed OUT2 = 1.05V
0.5
2.50
V
3.0
VCC - 1.1 V
Fixed OUT2 = 3.3V
VCC - 1.0
V
5
FN6373.6
April 29, 2010
 

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