參數(shù)資料
型號: ISL8011
廠商: Intersil Corporation
英文描述: 1.2A Integrated FETs, High Efficiency Synchronous Buck Regulator(1.2A集成FETs, 高效同步降壓調(diào)節(jié)器)
中文描述: 1.2A的集成FET,高效率同步降壓穩(wěn)壓器(1.2A的集成FET的高效同步降壓調(diào)節(jié)器)
文件頁數(shù): 3/10頁
文件大?。?/td> 296K
代理商: ISL8011
3
FN9254.1
November 6, 2007
POR
Output Low Voltage
Sinking 1mA, FB = 0.7V
-
-
0.3
V
Delay Time
150
200
275
ms
POR Pin Leakage Current
POR = V
CC
= 3.6V
-
0.01
0.1
μA
Minimum Supply Voltage for Valid POR Signal
1.2
-
-
V
Internal PGOOD Low Rising Threshold
Percentage of Nominal Regulation Voltage
89.5
92
94.5
%
Internal PGOOD Low Falling Threshold
Percentage of Nominal Regulation Voltage
85
88
91
%
Internal PGOOD High Rising Threshold
Percentage of Nominal Regulation Voltage
105.5
108
110.5
%
Internal PGOOD High Falling Threshold
Percentage of Nominal Regulation Voltage
102
105
108
%
Internal PGOOD Delay Time
-
50
-
μs
EN
Logic Input Low
-
-
0.4
V
Logic Input High
1.4
-
-
V
Logic Input Leakage Current
Pulled up to 5.5V
-
0.1
1
μA
Thermal Shutdown
-
150
-
°C
Thermal Shutdown Hysteresis
-
25
-
°C
Electrical Specifications
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specification are measured at the following conditions: T
A
= +25°C, V
PVIN
= V
VCC
= 3.6V,
EN = V
CC
, L = 1.8μH, C
1
= 10μF, C
2
= 10μF, I
OUT
= 0A (see “Typical Applications” on page 6).
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Typical Operating Performance
FIGURE 1. EFFICIENCY vs LOAD CURRENT (V
IN
= 5.0V)
FIGURE 2. V
OUT
vs LOAD CURRENT (V
IN
= 5V)
60
70
80
90
100
50
200
350
500
650
800
950
1100
LOAD CURRENT (mA)
E
V
OUT
= 3.3V
V
OUT
= 1.8V
V
OUT
= 2.5V
2.40
2.45
2.50
2.55
2.60
50
250
450
LOAD CURRENT (mA)
650
850
1050
V
O
ISL8011
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