ISL8502 Intersil Corporation, ISL8502 Datasheet - Page 6

• Manufacturer Part Number: ISL8502
• Description: 2.5A Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

Electrical Specifications
Ramp Amplitude
Modulator Gain
Maximum Duty Cycle
Maximum Duty Cycle
REFERENCE VOLTAGE
Reference Voltage
System Accuracy
FB Pin Bias Current
SOFT-START
Soft-Start Current
Enable Soft-Start Threshold
Enable Soft-Start Threshold Hysteresis
Enable Soft-Start Voltage High
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Maximum Output Voltage
Slew Rate
INTERNAL MOSFETS
Upper MOSFET r
Lower MOSFET r
PGOOD
PGOOD Threshold
PGOOD Rising Delay
PGOOD Leakage Current
PGOOD Low Voltage
PGOOD Sinking Current
PROTECTION
Positive Current Limit
Negative Current Limit
Undervoltage Level
Thermal Shutdown Setpoint
Thermal Recovery Setpoint
PARAMETER
DS(ON)
DS(ON)
6
Refer to Block and Simplified Power System Diagrams and Typical Application Schematics. Operating
Conditions Unless Otherwise Noted: Vin = 12V, or V
T
A
= +25°C. (Continued)
t
PGOOD_DELAY
V
V
V
r
r
SYMBOL
VIN
V
DS_Upper
DS_Lower
I
ΔV
FB/
FB
PGOOD
GBWP
D
D
PGOOD
V
I
I
T
T
POC
NOC
I
/ΔV
SR
MAX
MAX
REF
SS
/V
OSC
SD
SR
V
REF
REF
OSC
V
By Design
f
f
Note 3
Note 3
VCC = 5V
VCC = 5V
Rising Edge Hysteresis 1%
Falling Edge Hysteresis 1%
f
V
Note 3
Note 3
VCC = 5V, IOC from PHASE to PGND.
Notes 3, 6
VCC = 5V, IOC from VIN to PHASE.
Notes 3, 6
Note 3
Note 3
ISL8502
OSC
OSC
OSC
IN
PGOOD
= 5V
= 500kHz
= 1.2MHz
= 500kHz
= 5.5V
TEST CONDITIONS
CC
= 5V
±10%, T
A
= -40°C to +85°C. Typical are at
MIN
-1.0
107
0.8
2.8
3.9
2.8
2.2
88
76
20
86
76
0.470
0.600
TYP
0.10
±80
180
250
150
130
111
1.0
3.2
4.4
3.5
3.0
30
12
88
15
90
90
80
8
5
MAX
±200
+1.0
115
1.2
3.8
0.5
4.0
3.5
40
93
84
5
January 17, 2007
UNITS
MHz
V/μs
FN6389.0
mΩ
mΩ
mV
mA
ms
nA
μA
dB
μA
°C
°C
%
%
%
%
%
%
V
V
V
V
V
V
A
A
-