ISL8500IRZ Intersil, ISL8500IRZ Datasheet - Page 4

• Manufacturer Part Number: ISL8500IRZ
• Description: IC PWM REG 2A BUCK 12-DFN
• Manufacturer: Intersil
• Type: Step-Down (Buck), PWM - Voltage Moder

Specifications of ISL8500IRZ

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 19 V
• Current - Output: 2A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 ~ 25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: 12-DFN
• Voltage - Supply: 4.5 V ~ 25 V
• Frequency-max: 550kHz
• Duty Cycle: 94%
• Pwm Type: Voltage Mode
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
Absolute Maximum Ratings
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 26V
BOOT to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 33V
BOOT to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.03V to 6V
VDD, FB, EN, COMP, PG, SS . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 4.5V to 25V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 2A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . -40°C to +85°
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
SUPPLY VOLTAGE
VIN Voltage Range
VIN Operating Supply Current
VIN Shutdown Supply Current
POWER-ON RESET
VDD POR Threshold
INTERNAL VDD LDO
VDD Output Voltage Range
REFERENCE
Reference Voltage
STANDARD BUCK PWM REGULATOR
FB Line Regulation
FB Leakage Current
OSCILLATOR AND PWM MODULATOR
Nominal Switching Frequency
Modulator Gain
Peak-to-Peak Sawtooth Amplitude
PWM Ramp Offset Voltage
Maximum Duty Cycle
1. θ
2. For θ
3. Test Condition: V
4. Excluding the blanking time.
5. Specifications at -40°C to +85°C are established by +25°C test with margin limits.
Tech Brief TB379 for details.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JC
, the “case temp” location is the center of the exposed metal pad on the package underside. See Tech Brief TB379 for details.
PARAMETER
IN
= 15V, FB forced above regulation point (0.6V), no switching, and power MOSFET gate charging current not included.
4
Unless Otherwise Noted, All Parameter Limits are Established Over the Recommended Operating Conditions
and the Typical Specifications are Measured at the Following Conditions: T
V
IN
(Note 1)
= 5.5V to 25V, Unless Otherwise Noted. Typical Values are at T
SYMBOL
V
DCmax
V
OFFSET
A
V
RAMP
VIN
f
I
I
MOD
SW
OP
SD
FB
VIN connected to VDD
Note 3
V
Rising Edge
Hysteresis
V
V
I
V
V
V
COMP > 4V
OUT
IN
IN
IN
FB
IN
IN
= 15V, EN = GND
= 5.5V to 25V, I
= 5.5V to 25V, I
= 12V (A
= 12V (V
= 0.6V
= 0mA, V
ISL8500
MOD
P-P
IN
TEST CONDITIONS
= V
= 5.5V to 25V
= 8/V
VDD
REF
IN
Thermal Information
Thermal Resistance
Ambient Temperature Range. . . . . . . . . . . . . . . . . . .-40°C to +85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
/8)
QFN Package (Notes 1, 2). . . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
IN
= 0
= 0mA to 30mA
)
A
= +25°C.
A
= -40°C To +85°C (Note 5),
0.594
-0.05
4.00
0.65
0.75
MIN
450
5.5
4.5
4.5
-50
80
-
-
-
-
θ
TYP
4.15
5.00
0.75
JA
500
275
5.0
0.6
1.3
0.8
80
2
0
-
-
-
(°C/W)
39
0.606
MAX
December 10, 2007
4.30
0.05
0.95
0.85
100
550
5.5
2.5
5.5
25
50
-
-
-
θ
JC
FN6611.0
UNITS
(°C/W)
3
kHz
V/V
mA
mV
µA
nA
%
%
V
V
V
V
V
V
V