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参数资料
| 型号： | MAX8664BEEP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR DUAL OUT 20-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 电源 |
| 电流 - 电源： | 1.4mA |
| 电源电压： | 4.5 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 20-QSOP |
| 包装： | 带卷 (TR) |
Low-Cost, Dual-Output, Step-Down
Controller with Fast Transient Response
ABSOLUTE MAXIMUM RATINGS
IN to GND ...........................................................…-0.3V to +30V
VL to GND...................................................................-0.3 to +8V
IN, BST_ to VL ........................................................-0.3V to +30V
V CC , FB_, PWRGD to GND.......................................-0.3V to +6V
VL to VCC ....................................................................-2V to +8V
PGND to GND .......................................................-0.3V to +0.6V
DL_ to PGND...............................................-0.3V to (V VL + 0.3V)
DH_ to PGND............................................-0.3V to (V BST_ + 0.3V)
BST_ to GND.............................................................-0.3V to 38V
BST_ to LX ................................................................-0.3V to +8V
LX_ to PGND .................-1V (-2.5V for < 50ns transient) to +30V
ILIM_ to GND ...............................................-0.3V to (V IN + 0.3V)
ILIM_ to LX_............................................................-0.6V to +30V
OSC/EN12, REFIN2 to GND .....................-0.3V to (V VCC + 0.3V)
VL Continuous Current ..............................................125mARMS
V CC Continuous Current..............................................10mARMS
Continuous Power Dissipation (T A = +70°C) (Note 1)
20-Pin QSOP (derate 11.0mW/°C above +70°C).........884mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
DH_ to LX_................................................-0.3V to (V BST_ + 0.3V)
Note 1: Package mounted on a multilayer PCB.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = 12V, R OSC/EN12 to GND = 56.1k Ω , REFIN2 = V CC , T A = -40°C to +85°C, unless otherwise noted. Typical values are at
T A = +25°C.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY VOLTAGES
IN Supply Voltage
IN = VL = V CC
7.2
4.5
28.0
5.5
V
VL Output Voltage
V CC Output Voltage
V CC Undervoltage Lockout
(UVLO)
7.2V < V IN < 28V, 0 < I VL < 60mA
7.2V < V IN < 28V, 0 < I CC < 5mA
Rising
Hysteresis
6.10
4.5
3.4
6.6
5.0
3.5
350
6.75
5.5
3.6
V
V
V
mV
Standby Supply Current
Operating Supply Current
OSC/EN12 not
connected
No switching,
V FB_ = 0.65V
V IN = 12V, I IN
V CC = V IN = V VL = 5V, I IN + I VL + I VCC
V IN = 12V, I IN
V CC = V IN = V VL = 5V, I IN + I VL + I VCC
0.095
0.08
1.4
1.1
0.2
0.2
2.5
1.8
mA
mA
REGULATOR SPECIFICATIONS
Reference Accuracy
T A = 0°C to +85°C
T A = -40°C to +85°C
0.5955
0.5930
0.600
0.600
0.6045
0.6070
V
FB_ Regulation Accuracy
V REFIN2 = V VCC
T A = 0°C to +85°C
T A = -40°C to +85°C
0.5952
0.5925
0.600
0.600
0.6048
0.6075
V
V REFIN2 = 1.000V
0.995
1.000
1.005
REFIN2 to Internal Reference
Switchover Threshold
Not to be switched during operation
2
V VCC -
0.7
V VCC -
0.3
V
REFIN2 Maximum Program Voltage
REFIN2 Disable Threshold
1.3
50
V
mV
FB Input Bias Current
REFIN2 Bias Current
FB Propagation Delay
V FB = 0.5V
V REFIN2 = 0.65V
FB rising to DH falling
3
3
90
nA
nA
ns
2
_______________________________________________________________________________________
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