isl6236a Intersil Corporation, isl6236a Datasheet - Page 5

• Manufacturer Part Number: isl6236a
• Description: High-efficiency, Quad-output, Main Power Supply Controllers For Notebook Computers
• Manufacturer: Intersil Corporation

Electrical Specifications
LDO Output Current During Switchover
to 3.3V
LDO Short-Circuit Current
Undervoltage-Lockout Fault Threshold
LDO 5V Bootstrap Switch Threshold to BYP Rising edge at BYP regulation point
LDO 3.3V Bootstrap Switch Threshold to
BYP
LDO 5V Bootstrap Switch Equivalent
Resistance
LDO 3.3V Bootstrap Switch Equivalent
Resistance
VREF3 Output Voltage
VREF3 Load Regulation
VREF3 Current Limit
REF Output Voltage
REF Load Regulation
REF Sink Current
VIN Operating Supply Current
VIN Standby Supply Current
VIN Shutdown Supply Current
Quiescent Power Consumption
FAULT DETECTION
Overvoltage Trip Threshold
Overvoltage Fault Propagation Delay
POK_ Threshold
POK_ Propagation Delay
POK_ Output Low Voltage
POK_ Leakage Current
Thermal-Shutdown Threshold
Out-Of-Bound Threshold
Output Undervoltage Shutdown Threshold
Output Undervoltage Shutdown Blanking
Time
INPUTS AND OUTPUTS
FB1 Input Voltage
PARAMETER
5
No load on LDO, OUT1, OUT2, V
VEN_LDO = 5V, T
BYP = 3.3V, V
LDO = GND, BYP = GND
Rising edge of PVCC
Falling edge of PVCC
LDOREFIN = GND
Rising edge at BYP regulation point
LDOREFIN = VCC
LDO to BYP, BYP = 5V, LDOREFIN > (VCC - 1V),
Guaranteed by design
LDO to BYP, BYP = 3.3V, LDOREFIN < 0.3V, Guaranteed
by design
No external load, VCC > 4.5V
No external load, VCC < 4.0V
VREF3 = GND
No external load
REF in regulation
Both SMPSs on, FB1 = SKIP# = GND, REFIN2 = VCC
V
V
Both SMPSs on, FB1 = SKIP# = GND, REFIN2 = VCC,
V
FB1 with respect to nominal regulation point
REFIN2 with respect to nominal regulation point
FB1 or REFIN2 delay with 50mV overdrive
FB1 or REFIN2 with respect to nominal output, falling
edge, typical hysteresis = 1%
Falling edge, 50mV overdrive
I
High state, forced to 5.5V
FB1 or REFIN2 with respect to nominal output voltage
FB1 or REFIN2 with respect to nominal output voltage
From EN signal
Low level
High level
0 < I
0 < I
V
SINK
IN
IN
OUT1
OUT1
= 5.5V to 25V, both SMPSs off, EN LDO = VCC
= 4.5V to 25V, EN1 = EN2 = EN LDO = 0V
LOAD
LOAD
= 4mA
A
= BYP = 5.3V, V
= BYP = 5.3V, V
= -40°C to +100°C, unless otherwise noted. Typical values are at T
< 5mA
< 50µA
IN
= 4.5V to 25V, LDOREFIN > (VCC - 1V)
ISL6236A
CONDITIONS
REF3
OUT2
OUT2
, and REF, V
= 3.5V
= 3.5V
IN
= 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
VCC - 1.0
3.235
3.220
1.980
4.53
MIN
+12
-12
3.9
3.0
10
65
10
+8
3.300
3.300
2.000
+150
TYP
4.35
4.05
4.68
+16
200
180
+11
3.1
0.7
1.5
10
10
10
25
20
10
10
20
-9
70
5
5
A
= +25°C. (Continued)
3.365
3.380
2.020
MAX
4.83
100
400
250
+14
+20
4.5
3.2
1.5
3.0
0.2
0.3
17
50
30
30
-6
75
7
1
June 28, 2007
FN6453.1
UNITS
mW
mV
mA
mV
mA
mA
µA
µA
µA
µA
µA
ms
µs
µs
°C
Ω
Ω
%
%
%
%
%
V
V
V
V
V
V
V
V
V