ISL8502 データシートの表示（PDF） - Renesas Electronics
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ISL8502 Datasheet PDF : 19 Pages
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ISL8502
Electrical Specifications
PARAMETER
Negative Current Limit
Undervoltage Level
Thermal Shutdown Setpoint
Thermal Recovery Setpoint
Refer to Block and Simplified Power System Diagrams and Typical Application Schematics. Operating
Conditions Unless Otherwise Noted: VIN = 12V, or VCC = 5V ±10%, TA = -40°C to +85°C. Typical are at
TA = +25°C. (Continued)
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
INOC_peak
VFB/VREF
TSD
TSR
IOC from PHASE to PGND (Notes 5, 6)
(TA = 0°C to +85°C)
IOC from PHASE to PGND (Notes 5, 6)
(TA = -40°C to +85°C)
2.2
3.0
3.5
A
1.9
2.8
3.7
A
76
80
84
%
150
°C
130
°C
Typical Performance Curves
100
VIN = 12V, VOUT = 2.5V, IO = 2A, fs = 500kHz, L = 4.7µH, CIN = 20µF, COUT = 100µF + 22µF,
TA = +25° C, unless otherwise noted.
100
90
90
80
70
VOUT = 2.5V
VOUT = 1.8V
VOUT = 3.3V
60
50
80
70
VOUT = 5.0V
VOUT = 3.3V
60
VOUT = 2.5V
VOUT = 1.8V
50
400.0
0.5
1.0
1.5
2.0
2.5
OUTPUT LOAD (A)
FIGURE 3. EFFICIENCY vs LOAD (VIN = 5V)
40
0.0
0.5
1.0
1.5
2.0
2.5
OUTPUT LOAD (A)
FIGURE 4. EFFICIENCY vs LOAD (VIN = 12V)
0.6026
0.6025
0.6024
0.6023
0.6022
14VIN
0.6021
9VIN
0.6020
5VIN
0.6019 0
1
2
OUTPUT LOAD (A)
FIGURE 5. VOUT REGULATION vs LOAD (VOUT = 0.6V, 500kHz)
1.206
1.205
14VIN
1.204
1.203
9VIN
1.202
1.201
5VIN
1.200 0
1
2
OUTPUT LOAD (A)
FIGURE 6. VOUT REGULATION vs LOAD (VOUT = 1.2V, 500kHz)
FN6389 Rev 2.00
June 29, 2010
Page 7 of 19
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