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参数资料
| 型号： | MAX5081ATE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1A 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.23 V ~ 32 V |
| 输入电压： | 7.5 V ~ 40 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 250kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
1A, 40V, MAXPower Step-Down
DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
IN, ON/ OFF to SGND..............................................-0.3V to +45V
LX to SGND .................................................-0.3V to (V IN + 0.3V)
BST to SGND ................................................-0.3V to (V IN + 12V)
BST to LX................................................................-0.3V to +12V
PGND to SGND .....................................................-0.3V to +0.3V
REG, DVREG, SYNC to SGND ...............................-0.3V to +12V
FB, COMP, SS to SGND ...........................-0.3V to (V REG + 0.3V)
C+ to PGND (MAX5080 only)................(V DVREG - 0.3V) to +12V
C- to PGND (MAX5080 only) ................-0.3V to (V DVREG + 0.3V)
Continuous current through internal power MOSFET (pins 11/12
connected together and pins 13/14 connected together)
T J = +125°C.........................................................................3A
T J = +150°C.........................................................................2A
Continuous Power Dissipation * (T A = +70°C)
16-Pin TQFN (derate 33.3mW/°C above +70°C) ...2666.7mW
16-Pin TQFN ( θ JA )........................................................30°C/W
16-Pin TQFN ( θ JC ).......................................................1.7°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
* As per JEDEC 51 Standard
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 = V ON/ OFF = 12V, V REG = V DVREG , V SYNC = PGND = SGND, T A = T J = -40°C to +125°C, unless otherwise noted. Typical values
are at T A = + 25°C.) (Note 1)
PARAMETER
Input Voltage Range
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Switching Supply Current (PWM
Operation)
SYMBOL
V IN
UVLO
UVLO HYST
I SW
CONDITIONS
MAX5080
MAX5081
V IN rising, MAX5080
V IN rising, MAX5081
MAX5080
MAX5081
V FB = 0V, MAX5080
V FB = 0V, MAX5081
MIN
4.5
7.5
3.9
6.8
TYP
0.4
0.7
10.5
9.5
MAX
40
40
4.2
7.3
UNITS
V
V
V
mA
V IN = 12V, V OUT = 3.3V, I OUT = 1A
84
Efficiency
V IN = 4.5V, V OUT = 3.3V, I OUT = 1A
(MAX5080)
88
%
No-Load Supply Current
(PFM Operation)
MAX5080
MAX5081
1.4
1.3
2.5
2.3
mA
Shutdown Current
I SHDN
V ON/ OFF = 0V, V IN = 40V
200
300
μA
ON/ OFF CONTROL
Input Voltage Threshold
V ON/ OFF
V ON/ OFF rising
1.20
1.23
1.25
V
Input Voltage Hysteresis
0.12
V
Input Bias Current
V ON/ OFF = 0 to 40V
-250
+250
nA
ERROR AMPLIFIER/SOFT-START
Soft-Start Current
Reference Voltage (Soft-Start)
I SS
V SS
8
1.215
15
1.228
24
1.240
μA
V
FB Regulation Voltage
V FB
I COMP = -500μA to +500μA
1.215
1.228
1.240
V
FB Input Range
FB Input Current
0
-250
1.5
+250
V
nA
COMP Voltage Range
Open-Loop Gain
Unity-Gain Bandwidth
I COMP = -500μA to +500μA
0.25
80
1.8
4.50
V
dB
MHz
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5081ATE+ | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5081ATE+T | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5081ATE-T | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5082 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1.5A, 40V, MAXPower Step-Down DC-DC Converters |
| MAX5082ATE | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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