ISL8540IVEZ Intersil, ISL8540IVEZ Datasheet - Page 3

• Manufacturer Part Number: ISL8540IVEZ
• Description: IC REG 2A DC/DC STEP-DN 20HTSSOP
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL8540IVEZ

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.21 ~ 35 V
• Current - Output: 2A
• Frequency - Switching: 100kHz ~ 600kHz
• Voltage - Input: 9 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Power - Output: 3W
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
Oscillation Frequency
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
PARAMETER
3
Unless otherwise specified the specifications listed in the table are tested at T
full Temperature Range, V
with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits
established by characterization and are not production tested. (Continued)
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
f
V
LIMIT
SOFT
V
OSC
I
I
/ΔV
g
SR
REF
PG+
SS
FB
PG-
OSC
FB
m
OSC
V
V
V
T
T
T
Fraction of the V
Fraction of the V
V
I
I
level
V
V
PGOOD
OUT
A
A
A
IN
IN
IN
PULLUP
IN
IN
IN
= -40°C to +85°C, V
= -40°C to +85°C, V
= +25°C
= 9V to 40V, R
= 9V to 40V, R
= 9V
= 24V
= 24V
= 2A, V
= 24V, V
ISL8540
= 4mA
= 5.5V
BOOT
TEST CONDITIONS
OUT
OUT
OUT
T
T
= V
= 5.0V, I
= 100kΩ, C
= 27.4kΩ, C
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
T
= 0A. Typical values are at T
T
= 1200pF
= 220pF
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
725
150
±50
5.7
4.0
60
10
15
16
1
9
6
4
= +25°C. Parameters
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
1
September 9, 2008
SS cycle
UNITS
pulses
Clock
FN6495.5
MHz
V/µs
kHz
kHz
V
µA
ms
µA
nA
µA
µA
µA
µA
µA
ns
%
%
Ω
V
V
V
A
V
V
V
V
V
-
P