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参数资料
| 型号： | MAX1572ETC250+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 2.5V .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： | 2.5V |
| 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： | 是 |
| 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
ABSOLUTE MAXIMUM RATINGS
ABATT, BATT, EN1, EN2, RESET , OUT,
SS to GND ............................................................-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
LX Current (Note 1) ............................................................. ± 2.1A
Operating Temperature Range ...........................-40 ° C to +85 ° C
Junction Temperature ......................................................+150 ° C
Storage Temperature Range .............................-65 ° C to +150 ° C
Lead Temperature (soldering, 10s) .................................+300 ° C
Output Short-Circuit Duration ............................................Infinite
Continuous Power Dissipation (T A = +70 ° C)
12-Pin Thin QFN (derate 16.9mW/ ° C above +70 ° C)...1349mW
Note 1: LX has internal clamp diodes to PGND and BATT. Applications that forward bias these diodes should take care not to
exceed the IC’s package power dissipation limits.
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 BATT = 3.6V, T A = +0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
BATT Input Voltage
Undervoltage Lockout Threshold
Quiescent Supply Current
Shutdown Supply Current
CONDITIONS
V BATT rising and falling, 1% hysteresis
EN1 = GND, EN2 = BATT, no switching
EN1 = BATT, EN2 = GND, no switching
EN1 = EN2 = GND, T A = +25°C
MIN
2.6
2.20
TYP
2.35
48
700
0.1
MAX
5.5
2.55
80
1
UNITS
V
V
μA
μA
Maximum Output Current
800
mA
OUT Bias Current
No load, EN1 = EN2 = BATT
6
1.2
9
2.7
μA
100mA load
-0.4
+0.8
+2.0
Output-Voltage Accuracy
(Voltage Positioning)
Line Regulation
300mA load
550mA load
800mA load
0
-1
-2
0.3
%
%/V
P-Channel On-Resistance
N-Channel On-Resistance
P-Channel Current-Limit Threshold
I LX = 180mA
I LX = 180mA
V BATT = 3.6V
V BATT = 2.6V
V BATT = 3.6V
V BATT = 2.6V
1.00
0.28
0.33
0.18
0.20
1.25
0.45
0.30
1.65
?
?
A
N-Channel Current-Limit Threshold
N-Channel Zero-Crossing Threshold
LX Output Current
LX Leakage Current
EN1 = EN2 = BATT
EN1 = BATT, EN2 = GND
(Note 2)
EN1 = EN2 = GND
-0.68
15
-0.52
40
0.1
-0.37
65
1.4
10
A
mA
A RMS
μA
Maximum Duty Cycle
100
%
Minimum Duty Cycle
EN1 = BATT, EN2 = GND or
EN1 = GND, EN2 = BATT
EN1 = EN2 = BATT
0
16.7
17.3
%
Switching Frequency
SS Output Impedance
1.8
65
2
100
2.2
150
MHz
k ?
2
_______________________________________________________________________________________
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| 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+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-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 |
| MAX1572EVKIT | 功能描述:电源管理IC开发工具 Evaluation Kit for the MAX1572 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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