参数资料
型号: MAX1972EEE
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 稳压器
英文描述: Fixed-Point Digital Signal Processor 532-FCBGA
中文描述: 0.75 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO16
封装: QSOP-16
文件页数: 4/20页
文件大小: 371K
代理商: MAX1972EEE
M
Dual, 180° Out-of-Phase, 1.4MHz, 750mA Step-
Down Regulator with POR and RSI/PFO
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
CC
= V
EN
= 5V, R
POR
= 100k
to IN, R
PFO
= 100k
to IN, V
RSI
= 0, C
REF
= 0.1μF, FBSEL1 = unconnected, FBSEL2 =
unconnected,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
PFO
(MAX1970 and MAX1972 Only)
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
rising
V
CC
falling
4.04
3.94
4.12
PFO Trip Threshold
IN = V
CC
3.86
-1
V
PFO Output Current, High
PFO Output Voltage, Low
EN AND RSI
(MAX1971 Only)
PFO = IN
I
PFO
= 1mA, V
IN
= 4.3V
1
μA
V
0.01
0.05
V
IL
V
IH
0.4
0.95
1.0
10
Logic Input Thresholds
IN = 2.6V to 5.5V
1.6
20
1
1
V
RSI Input Resistance
Internal pullup resistor to IN
5
-1
-1
k
V
IL
V
IH
EN Logic Input Current
Logic input at 0 or
5.5V, V
IN
= 5.5V
μA
ELECTRICAL CHARACTERISTICS
(V
IN
= V
CC
= V
EN
= 5V, V
FB1
= V
FB2
= 1.15V, R
POR
= 100k
to IN, R
PFO
= 100k
to IN, RSI = 0, C
VCC
= 0.1μF, C
REF
= 0.1μF,
FBSEL1 = unconnected, FBSEL2 = unconnected,
T
A
= -40
°
C to +85
°
C.
) (Note 2)
PARAMETER
IN AND V
CC
IN Voltage Range
CONDITIONS
MIN
TYP
MAX
UNITS
2.6
5.5
10
20
20
100
2.55
V
MAX1971
MAX1970/MAX1972
MAX1970/MAX1972
MAX1971
IN Supply Current
Switching with no load
V
IN
= 3.3V
mA
IN Shutdown Current
V
IN
= 5.5V, V
EN
= 0
μA
V
CC
rising
V
CC
falling
V
CC
Undervoltage
Lockout Threshold
2.20
V
REF
REF Voltage
REF Shutdown Resistance
REF Soft-Start Current
FB1 AND FB2
I
REF
= 0, V
IN
= 2.6V to 5.5V
REF to GND, V
EN
=0
V
REF
= 1V
1.185
1.212
25
30
V
μA
20
FB_ Regulation Voltage
FBSEL_ = unconnected, OUT1 = FB1, OUT2 = FB2,
V
COMP_
= 1.20V to 1.80V, V
IN
= 2.6V to 5.5V
FBSEL_ = unconnected
V
IN
= 2.6V to 5.5V
V
IN
= 4.5V to 5.5V
1.185
1.212
V
OUT_ Voltage Range
1.2
1.778
3.259
1.481
2.469
750
V
IN
1.818
3.333
1.515
2.525
V
V
COMP1
= 1.2V, FBSEL1= GND
V
COMP1
= 1.2V, FBSEL1 = V
CC
V
COMP2
= 1.2V, FBSEL2 = GND
V
COMP2
= 1.2V, FBSEL2 = V
CC
OUT1 Regulation Voltage
V
OUT2 Regulation Voltage
V
IN
= 2.6V to 5.5V
V
Maximum Output Current
Guaranteed by design (Note 1)
mA
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相关代理商/技术参数
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MAX1972EEE+ 功能描述:直流/直流开关调节器 Dual 180 Out 1.4MHz 750mA Step-Down 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
MAX1972EEE+T 功能描述:直流/直流开关调节器 Dual 180 Out 1.4MHz 750mA Step-Down 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
MAX1972EEE-G05 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
MAX1972EEE-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
MAX1972EEE-TG05 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14