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参数资料
| 型号： | MAX1623 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches |
| 中文描述： | 3A、低电压、降压型稳压器，内置同步整流与开关 |
| 文件页数： | 3/12页 |
| 文件大小： | 164K |
| 代理商： | MAX1623 |
M
_______________________________________________________________________________________
3
3A, Low-Voltage, Step-Down Regulator with
Synchronous Rectification and Internal Switches
ELECTRICAL CHARACTERISTICS
(V
IN
= V
CC
= +5V, FBSEL unconnected, R
TOFF
= 110k
,
T
A
= -40°C to +85°C
, unless otherwise noted.) (Note 3)
Note 1:
Guaranteed by design, not production tested.
Note 2:
Idle Mode threshold is defined as the transition point in the load-current range between Idle Mode and constant-off-time
operation.
Note 3:
Specifications to -40°C are guaranteed by design, not production tested.
SHDN
= GND or V
CC
V
IN
= 4.5V to 5.5V,
I
LOAD
= 0 to 3A
FBSEL = GND, adjustable output mode, V
FB
= 1.2V
V
CC
falling, 100mV hysteresis
V
IN
= 4.5V
Does not include switching losses
V
IN
= 5.5V, V
LX
= 5.5V or 0
SHDN
= GND
V
IN
= 4.5V
V
FBSEL = GND or REF (Note 1)
I
REF
= 0
CONDITIONS
V
0.8
FBSEL = unconnected
FBSEL = V
CC
FBSEL = GND or REF
SHDN
Input Low Voltage
SHDN
Input High Voltage
μA
-1
1
SHDN
Input Current
2.2
μs
0.85
1.25
Off-Time Default Period
μs
0.55
4
Off-Time Adjustment Range
nA
-50
50
FB Input Bias Current
V
4.0
4.3
Undervoltage Lockout Threshold
μA
-20
20
LX Leakage Current
μA
10
Shutdown Supply Current
μA
600
No-Load Supply Current
2.450
1.075
V
REF
1.075
2.550
1.110
3.8
1.110
V
3.234
3.366
V
4.5
5.5
Input Voltage Range
Output Voltage
0.1
NMOS Switch On-Resistance
0.1
PMOS Switch On-Resistance
A
3.5
4.75
Current-Limit Threshold
V
V
Output Adjustment Range
Reference Output Voltage
UNITS
MIN
TYP
MAX
PARAMETER
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1623EAP | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EA-P | 制造商:Maxim Integrated Products 功能描述: |
| MAX1623EAP+ | 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EAP+T | 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EAP-T | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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