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| 型号： | MAX1831EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 3A 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 1.5V，2.5V，3.3V，可调 |
| 输入电压： | 3 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-QSOP |
| 产品目录页面： | 1410 (CN2011-ZH PDF) |
3A, 1MHz, Low-Voltage, Step-Down Regulators with
Synchronous Rectification and Internal Switches
ABSOLUTE MAXIMUM RATINGS
V CC , IN, SHDN to GND ............................................-0.3V to +6V
IN to V CC .............................................................................±0.3V
GND to PGND.....................................................................±0.3V
COMP, FB, TOFF, FBSEL, REF to GND .....-0.3V to (V CC + 0.3V)
LX Current (Note 1) ...............................................................5.1A
REF Short Circuit to GND Duration ............................Continuous
ESD Protection .....................................................................±2kV
Continuous Power Dissipation (T A = +70°C)
16-Pin QSOP (derate 14mW/°C above +70°C;
part mounted on 1in 2 of 1oz copper) .............................1.12W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Note 1: LX has internal clamp diodes to PGND and IN. Applications that forward bias the diode should take care not to exceed the IC ’ s
package power dissipation.
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 IN = V CC = +3.3V, FBSEL = GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Input Voltage
SYMBOL
V IN , V CC
CONDITIONS
MIN
3.0
TYP
MAX
5.5
UNITS
V
FBSEL = V CC
2.487
2.525
2.563
V IN = +3V to +5.5V,
FBSEL =
unconnected
1.492
1.515
1.538
Preset Output Voltage
V OUT
I LOAD = 0 to 3A,
V FB = V OUT
FBSEL = REF
(MAX1830)
1.791
1.818
1.845
V
FBSEL = GND
1.084
1.100
1.117
V IN = +3.7V to +5.5V,
I LOAD = 0 to 3A,
V FB = V OUT
FBSEL = REF
(MAX1831)
3.283
3.333
3.383
Adjustable Output Voltage Range
AC Load Regulation Error
DC Load Regulation Error
V CC = V IN = +3V to +5.5V, I LOAD = 0,
FBSEL = GND
V REF
2
0.4
V IN
V
%
%
Dropout Voltage
Reference Voltage
Reference Load Regulation
Current-Limit Threshold
V DO
V REF
? V REF
I LIMIT
V CC = V IN = +3V, I LOAD = 3A
I REF = -1μA to +10μA
1.089
4.0
150
1.100
0.5
4.8
330
1.111
2
5.4
mV
V
mV
A
Maximum Output RMS Current
I OUT(RMS) (Note 4)
3.4
A
Idle Mode Current Threshold
I IM
0.2
0.6
1.0
A
PMOS Switch On-Resistance
NMOS Switch On-Resistance
Switching Frequency
No-Load Supply Current
R ON , P
R ON , N
f
I IN + I CC
I LX = 0.5A
I LX = 0.5A
(Note 2)
V FB = 1.2V
V IN = 4.5V
V IN = 3V
V IN = 4.5V
V IN = 3V
45
50
55
55
325
90
110
95
100
1
750
m ?
MHz
μA
2
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