参数资料
型号: ISL8112EVAL1Z
厂商: Intersil
文件页数: 3/27页
文件大小: 0K
描述: EVALUATION BOARD FOR ISL8112
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 2,非隔离
输出电压: 0.7 ~ 5.5 V
电流 - 输出: 200mA
输入电压: 5.5 ~ 25 V
稳压器拓扑结构: 降压
频率 - 开关: 可调式
板类型: 完全填充
已供物品:
已用 IC / 零件: ISL8112
ISL8112
Absolute Voltage Ratings
VIN, EN_LDO to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +27V
BOOT_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_ to PH_ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
VCC, EN_, MODE, FS,
PVCC, PGOOD_ to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
LDO, FB1, OUT2REF, LDOREF to GND . . . . -0.3V to (VCC+0.3V)
VSEN_, VREF2, VREF1 to GND . . . . . . . . . . . -0.3V to (VCC+0.3V
UG_ to PH_ . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
Thermal Information
Thermal Resistance (Typical, Note 1) θ JA (°C/W) θ JC (°C/W)
32 Ld QFN (Notes 1, 2) . . . . . . . . . . . . 32 3.0
Operating Temperature Range . . . . . . . . . . . . . . . .-40°C to +100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
ILIM_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
LG_, BYP to GND . . . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to + 0.3V
LDO, VREF1, VREF2 Short Circuit to GND . . . . . . . . . . Continuous
VCC Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s
LDO Current (Internal Regulator) Continuous . . . . . . . . . . . . 100mA
LDO Current (Switched Over to VSEN1) Continuous . . . . . +200mA
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.
NOTE:
1. θ JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Circuit of Figure 17, and Figure 18, no load on LDO, VSEN1, VSEN2, VREF2, and VREF1, VIN = 12V,
EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, T A = -40°C to +100°C, unless otherwise noted.
Typical values are at T A = +25°C.
MIN
MAX
PARAMETER
CONDITIONS
(Note 3)
TYP
(Note 3)
UNITS
MAIN SMPS CONTROLLERS
V IN Input Voltage Range
LDO in regulation
V IN = LDO, VSEN1 < 4.43V
5.5
4.5
25
5.5
V
V
3.3V Output Voltage in Fixed Mode
1.05V Output Voltage in Fixed Mode
1.5V Output Voltage in Fixed Mode
5V Output Voltage in Fixed Mode
FB1 in Output Adjustable Mode
OUT2REF in Output Adjustable Mode
SMPS1 Output Voltage Adjust Range
SMPS2 Output Voltage Adjust Range
SMPS2 Output Voltage Accuracy
V IN = 5.5V to 25V, OUT2REF > (VCC - 1V), MODE = 5V
V IN = 5.5V to 25V, 3.0 < OUT2REF < (VCC - 1.1V),
MODE = 5V
V IN = 5.5V to 25V, FB1 = VCC, MODE = 5V
V IN = 5.5V to 25V, FB1 = GND, MODE = 5V
V IN = 5.5V to 25V
V IN = 5.5V to 25V
SMPS1
SMPS2
OUT2REF = 0.7V to 2.5V, MODE = VCC
3.285
1.038
1.482
4.975
0.693
0.7
0.70
0.50
-1.0
3.330
1.05
1.500
5.050
0.700
3.375
1.062
1.518
5.125
0.707
2.50
5.50
2.50
1.0
V
V
V
V
V
V
V
V
%
(Referred for OUT2REF)
DC Load Regulation
Line Regulation
Either SMPS, MODE = VCC, 0A to 5A
Either SMPS, MODE = VREF1, 0A to 5A
Either SMPS, MODE = GND, 0A to 5A
Either SMPS, 6V < V IN < 24V
-0.1
-1.7
-1.5
0.005
%
%
%
%/V
Current-Limit Current Source
ILIM_ Adjustment Range
Current-Limit Threshold (Positive, Default)
Temperature = +25°C
ILIM_ = VCC, GND - PH_
4.75
0.2
93
5
100
5.25
2
107
μA
V
mV
(No temperature compensation)
3
FN6396.1
August 10, 2010
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