isl8540 Intersil Corporation, isl8540 Datasheet - Page 3

• Manufacturer Part Number: isl8540
• Description: Dc/dc Power Switching Regulator
• Manufacturer: Intersil Corporation

Electrical Specifications
Max Ramp Amplitude
Modulator Gain
Min OFF Time
REFERENCE AND SOFT-START
Internal Reference Voltage
Soft-Start Current
Soft-Start Threshold
ERROR AMPLIFIER
Transconductance
Gain-Bandwidth Product
Slew Rate
COMP Pin Drive
Internal Feedback Voltage
Internal Feedback Bias Current
OVERCURRENT PROTECTION
Dynamic Current Limit ON Time
Dynamic Current Limit OFF Time
Switch Current Limit
POWER GOOD (OPEN DRAIN)
Power-Good Lower Threshold
PGOOD Leakage Current
PGOOD Voltage Low
MOSFET
Switch ON Resistance
EN#
Input HIGH Level (Asserted)
Input LOW Level (Unasserted)
Input Current HIGH
Input Current LOW
SYNC
Input HIGH Level (Asserted)
Input LOW Level (Unasserted)
Input Current HIGH
Input Current LOW
THERMAL SHUT-DOWN
Thermal Shut-down Temperature
Thermal Shut-down Hysteresis
PARAMETER
3
Unless otherwise specified the specifications listed in the table are tested at T
full Temperature Range, V
V
I
I
SYNCHIGH
SYMBOL
VIN
SYNCLOW
VINHIGH
VINHIGH
VINLOW
VINLOW
I
r
I
t
I
ΔV
ENHIGH
V
I
t
ENLOW
OCOFF
PGLKG
DS(ON)
V
I
V
GBW
COMP
OCON
V
LIMIT
SOFT
V
I
I
/ΔV
g
SR
REF
PG+
SS
FB
PG-
OSC
FB
m
OSC
V
T
T
T
Fraction of the V
Fraction of the V
V
I
I
level
V
V
Rising Threshold
PGOOD
OUT
A
A
A
IN
PULLUP
IN
IN
IN
= -40°C to +85°C, V
= -40°C to +85°C, V
= +25°C
= 9V
= 24V
= 24V
= 2A, V
= 24V, V
ISL8540
= 4mA
= 5.5V
BOOT
TEST CONDITIONS
OUT
OUT
OUT
= V
= 5.0V, I
set point; ~3μs noise filter
set point; ~3μs noise filter
IN
IN
FB
+ 5.0V, Tested at wafer
= 9.0V to 40V
= 1.20V
OUT
= 0A. Typical values are at T
1.194
MIN
111
1.0
3.9
3.2
2.6
2.6
85
8
A
= +25°C and guard band for the
1.210
±200
A
TYP
1.21
0.19
150
±50
150
5.7
4.0
10
15
16
15
1
9
6
4
= +25°C. (Continued)
1.222
0.355
MAX
±100
300
115
7.2
4.8
0.5
1.2
1.2
0.2
0.2
12
89
25
25
September 18, 2007
1
SS cycle
UNITS
pulses
Clock
FN6495.4
MHz
V/μs
mS
V
μA
μA
nA
μA
μA
μA
μA
μA
°C
°C
ns
%
%
Ω
V
V
V
A
V
V
V
V
V
-
P