ISL6455EVAL1Z Intersil, ISL6455EVAL1Z Datasheet - Page 6
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ISL6455EVAL1Z
Manufacturer Part Number
ISL6455EVAL1Z
Description
EVALUATION BOARD FOR ISL6455
Manufacturer
Intersil
Specifications of ISL6455EVAL1Z
Main Purpose
DC/DC, Step Down with LDO
Outputs And Type
3, Non-Isolated
Voltage - Output
1.2V, 1.8V, 2.5V
Current - Output
200mA, 200mA, 200mA
Voltage - Input
5V
Regulator Topology
Buck
Frequency - Switching
750kHz
Board Type
Fully Populated
Utilized Ic / Part
ISL6455
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Electrical Specifications
NOTES:
ENABLE (EN and (EN_LDO)
EN High Level Input Voltage
EN Low Level Input Voltage
RESET BLOCK SPECIFICATIONS
RESET (reset released)
RESET (reset asserted)
RESET Rising Threshold
RESET Falling Threshold
RESET (reset released)
RESET (reset asserted)
RESET Rising Threshold
RESET Falling Threshold
RESET Threshold Hysteresis
RESET Threshold Hysteresis
RESET Active Timeout Period (Note 5)
POWER GOOD (PG_LDO)
Minimum Input Voltage for Valid PG_LDO
PGOOD Threshold (Rising)
PGOOD Threshold (Falling)
PGOOD Output Voltage Low
PGOOD Output Leakage Current
PWM OUTPUT OVERVOLTAGE
Overvoltage Threshold
3. Specifications at -40°C and +85°C are guaranteed by 25°C test with margin limits.
4. This is the V
5. The dropout voltage is defined as V IN - V OUT , when V OUT is 50mV below the value of V OUT for V IN = V OUT + 0.5V.
6. The RESET timeout period is linear with CT at the slope of 2.5ms/nF. Thus, at 10nF (0.01µF) the RESET time is 25ms; at 1000nF (0.1µF) the
7. Guaranteed by design, not production tested.
8. Add the external feedback resistor mismatch error to get initial V
RESET time would be 250ms.
IN
PARAMETER
current consumed when the device is active but not switching. Does not include gate drive current.
6
Recommended operating conditions unless otherwise noted. V
5.0V for the ISL6455A, Compensation Capacitors = 33nF for LDO1 and LDO2. T
values are at T
A
As % of VIN
As % of VIN
ISL6455, ISOURCE = 500µA, VIN = 2.90V
ISL6455, ISINK = 1.2mA, VIN = 2.50V
ISL6455
ISL6455
ISL6455A, ISOURCE = 800µA, VIN = 4.70V
ISL6455A, ISINK = 3.2mA, VIN = 4.10V
ISL6455A
ISL6455A
ISL6455
ISL6455A
C
FB_LDO vs 1.184V Vref
I
PG_LDO = GND or VIN
FB_PWM vs 0.45V Vref
= 25°C. (Continued)
OL
T
= 0.01µF
= 1.2mA
ISL6455, ISL6455A
TEST CONDITIONS
OUT
accuracy.
IN
= V
IN
_LDO = PV
0.8 x
0.8 x
V
2.71
2.69
V
4.19
4.16
MIN
+11
-17
70
28
CC
CC
-
-
-
-
-
-
-
-
-
A
= -40°C to 85° (Note 2), typical
CC
TYP
2.77
2.75
4.27
4.24
0.01
+15
= 3.3V for ISL6455 and
1.2
-15
20
30
25
31
-
-
-
-
-
-
-
MAX
2.84
2.81
4.35
4.32
+17
0.3
0.4
-11
0.4
0.1
30
34
December 21, 2005
-
-
-
-
-
-
-
UNITS
FN9196.0
mV
mV
ms
µA
%
%
%
%
%
V
V
V
V
V
V
V
V
V
V