ISL6455EVAL1Z Intersil, ISL6455EVAL1Z Datasheet - Page 6

• 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