参数资料
| 型号： | ISL78205AVEZ |
| 厂商： | Intersil |
| 文件页数： | 6/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20HTSSOP |
| 标准包装： | 740 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 0.8V |
| 输入电压： | 3 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2.2MHz |
| 电流 - 输出： | 2.5A |
| 同步整流器： | 两者兼有 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 20-HTSSOP |
ISL78205
Absolute Maximum Ratings
VIN, PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +44V
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +6.0V
Absolute Boot Voltage, V BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +50.0V
Upper Driver Supply Voltage, V BOOT - V PHASE . . . . . . . . . . . . . . . . . . . +6.0V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Rating
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . 2000V
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
20 Ld HTSSOP Package (Notes 4, 5) . . . . . . . 32 3.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . 1000V
Latch Up Rating (Tested per JESD78B; Class II, Level A) . . . . . . . . . 100mA
Recommended Operating Conditions
Supply Voltage on VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V
Ambient Temperature Range (Automotive). . . . . . . . . . . . . . .-40°C to +105°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
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:
4. 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
5. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Refer to “Block Diagram” on page 4 and Typical Application Schematics on page 5. Operating Conditions
Unless Otherwise Noted: VIN = 12V, or VCC = 4.5V, TA = -40°C to +105°C. Typical are at TA = +25°C. Boldface limits apply over the operating temperature
range, -40°C to +105°C.
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 7)
TYP
(Note 7) UNITS
V IN SUPPLY
V IN Voltage Range
V IN
V IN connected to VCC
3.05
3.05
40
5.5
V
V
Operating Supply Current
I Q
IC Operating, Not Including Driving Current,
V IN = 12V
1.2
mA
Shut Down Supply Current
I IN_SD
EN connected to GND, V IN = 12V
1.8
3
μA
INTERNAL MAIN LINEAR REGULATOR
MAIN LDO V CC Voltage
V CC
V IN > 5V
4.2
4.5
4.8
V
MAIN LDO Dropout Voltage
V CC CURRENT LIMIT of MAIN LDO
V DROPOUT_MAIN V IN = 4.2V, I VCC = 35mA
V IN = 3V, I VCC = 25mA
0.3
0.25
60
0.5
0.3
V
V
mA
POWER-ON RESET
Rising V CC POR Threshold
Falling V CC POR Threshold
V CC POR Hysteresis
V PORH_RISE
V PORL_FALL
V PORL_HYS
2.82
2.9
2.6
0.3
3.05
2.8
V
V
V
ENABLE
Required Enable On Voltage
Required Enable Off voltage
V ENH
V ENL
2
0.8
V
V
EN Pull-Up Current
I EN_PULLUP
V IN = 24V
V IN = 12V
V IN = 5V
0.8
0.5
0.25
μA
μA
μA
6
FN7926.3
February 19, 2014
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