参数资料
型号: MAX1572ETC180+
厂商: Maxim Integrated Products
文件页数: 4/11页
文件大小: 0K
描述: IC REG BUCK SYNC 1.8V .8A 12TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 1.8V
输入电压: 2.6 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 2MHz
电流 - 输出: 800mA
同步整流器:
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WQFN 裸露焊盘
包装: 管件
供应商设备封装: 12-TQFN-EP(4x4)
800mA, 2MHz, PWM DC-to-DC
Step-Down Converter with RESET
ELECTRICAL CHARACTERISTICS (continued)
(V BATT = 3.6V, T A = -40°C to +85°C , unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
EN_ Logic Input Low
EN_ Logic Input Current
0.4
1
V
μA
RESET Threshold
RESET Timer Delay Time
Percent of nominal, measured at OUT
From V OUT > 90% to RESET = HI
87
170
93
230
%
ms
RESET Output Low Level
RESET Internal Pullup Resistance to OUT
I SINK = 1mA
9
0.2
20
V
k ?
Note 2: Guaranteed by design, not production tested.
Note 3: Specifications to -40°C are guaranteed by design and not production tested.
Typical Operating Characteristics
(V BATT = 3.6V, V OUT = 1.5V, EN1 = GND, EN2 = BATT, T A = +25°C, unless otherwise noted.)
100
90
EFFICIENCY vs. LOAD CURRENT
WITH 2.5V OUTPUT
100
90
EFFICIENCY vs. LOAD CURRENT
WITH 1.8V OUTPUT
100
90
EFFICIENCY vs. LOAD CURRENT
WITH 1.5V OUTPUT
80
70
V IN = 2.6V
V IN = 3.6V
V IN = 5V
80
70
V IN = 2.6   V
V IN = 3.6V
V IN = 5V
80
70
V IN = 2.6   V
V IN = 3.6V
V IN = 5V
60
50
40
60
50
40
60
50
40
1
10
100
1000
1
10
100
1000
1
10
100
1000
100
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
vs. MODE
PULSE-
1.58
1.56
LOAD CURRENT (mA)
OUTPUT VOLTAGE
vs. LOAD CURRENT
1.55
LOAD CURRENT (mA)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
WITH 100mA LOAD
90
GROUP MODE
1.54
T A = +85 ° C
1.53
T A = +85 ° C
80
1.52
1.51
70
PULSE-
SKIP MODE
1.50
1.48
T A = +25 ° C
1.49
T A = -40 ° C
T A = +25 ° C
60
50
40
FORCED-
PWM MODE
1.46
1.44
1.42
1.40
T A = -40 ° C
1.47
1.45
1
10
100
1000
0
200
400
600
800
2.5
3.0
3.5
4.0
4.5
5.0
5.5
LOAD CURRENT (mA)
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
4
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MAX1572ETC180+ 功能描述:直流/直流开关转换器 800mA 2MHz PWM Step-Down w/Reset 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
MAX1572ETC180+T 功能描述:直流/直流开关转换器 800mA 2MHz PWM Step-Down w/Reset 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
MAX1572ETC180-T 功能描述:直流/直流开关转换器 800mA 2MHz PWM Step-Down w/Reset 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
MAX1572ETC250 功能描述:直流/直流开关转换器 800mA 2MHz PWM Step-Down w/Reset 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
MAX1572ETC250+ 功能描述:直流/直流开关转换器 800mA 2MHz PWM Step-Down w/Reset 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