参数资料
| 型号： | MAX1945REUI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 6A 28TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 1.8V，2.5V，可调 |
| 输入电压： | 2.6 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 400kHz ~ 1.2MHz |
| 电流 - 输出： | 6A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 28-TSSOP 裸露焊盘 |
1MHz, 1% Accurate, 6A Internal Switch
Step-Down Regulators
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V CC = V CTL1 = V CTL2 = V DD = 3.3V, SYNC = GND, FBSEL = High-Z, V FB = 0.7V, C REF = 0.22μF, T A = 0°C to +85°C , unless
otherwise noted. Typical values are at +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
THERMAL SHUTDOWN
Thermal-Shutdown Hysteresis
20
° C
Thermal-Shutdown Threshold
When LX stops switching
165
° C
ELECTRICAL CHARACTERISTICS
(V IN = V CC = V CTL1 = V CTL2 = V DD = 3.3V, SYNC = GND, FBSEL = High-Z, V FB = 0.7V, C REF = 0.22μF, T A = -40°C to +85°C , unless
otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IN/V CC
Input Voltage
V IN
2.6
5.5
V
IN Supply Current
V CC Supply Current
V DD Supply Current
I IN
I CC
I DD
SYNC = V CC (1MHz),
no load
SYNC = V CC (1MHz)
SYNC = V CC (1MHz)
V IN = 3.3V
V CC = 3.3V
V DD = 3.3V
20
4
8
mA
mA
mA
Total Shutdown Current from IN,
V CC , and V DD
I TOTAL
V IN = V CC = V DD = V BST - V LX = 5.5V,
CTL1 = CTL2 = GND
500
μA
V CC Undervoltage Lockout
Threshold
V UVLO
When LX starts/stops
switching
V CC rising
V CC falling
2.20
2.55
V
V DD
V DD Shutdown Supply Current
I VDD
V IN = V DD = V BST = 5.5V, V LX = 5.5V or 0,
CTL1 = CTL2 = GND
10
μA
BST
BST Shutdown Supply Current
I BST
V IN = V DD = V BST = 5.5V, V LX = 5.5V or 0,
CTL1 = CTL2 = GND
10
μA
REF
REF Voltage
REF Shutdown Resistance
V REF
I REF = 0, V IN = 2.6V to 5.5V
From REF to GND, CTL1 = CTL2 = GND
1.96
2.04
100
V
?
COMP
FBSEL = High-Z
30
85
COMP Transconductance
From FB to COMP,
V COMP = 1.25V
FBSEL = GND
FBSEL = V CC
13.3
9.6
37.8
27.2
μS
COMP Clamp Voltage Low
COMP Clamp Voltage High
COMP Shutdown Resistance
V LOW_
CLAMP
V HIGH_
CLAMP
V IN = 2.6V to 5.5V, V FB = 0.9V
V IN = 2.6V to 5.5V, V FB = 0.7V
From COMP to GND, CTL1 = CTL2 = GND
0.5
1.90
1.1
2.40
100
V
V
?
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5
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相关代理商/技术参数 |
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| MAX1945SEUI | 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 |
| MAX1945SEUI+ | 功能描述:直流/直流开关调节器 1MHz 1% 6A Step-Down PWM 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 |
| MAX1945SEUI+T | 功能描述:直流/直流开关调节器 1MHz 1% 6A Step-Down PWM 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 |
| MAX1945SEUI-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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