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| 型号： | MAX15053EWL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/21页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 9WLP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 5.17 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 包装： | * |
| 供应商设备封装： | * |
High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 5V, T A = -40 N C to +85 N C, unless otherwise noted, typical values are at T A = +25 N C.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Low-Side Switch Source Current-
Limit Threshold
4
A
LX Leakage Current
RMS LX Output Current
V EN = 0V
2
10
F A
A
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
f SW
D MAX
850
94
1000
95.8
1150
kHz
%
Minimum Controllable On-Time
Slope Compensation Ramp
Valley
70
1.15
ns
V
Slope Compensation Ramp
Amplitude
V SLOPE
Extrapolated to 100% duty cycle
320
mV
ENABLE
EN Input High Threshold Voltage
EN Input Low Threshold Voltage
EN Input Leakage Current
SKIP Input Leakage Current
V EN rising
V EN falling
V EN = 5V
V SKIP = V EN = 5V
0.4
0.025
25
1.45
V
V
F A
F A
SOFT-START, PREBIAS, REFIN
Soft-Start Current
SS/REFIN Discharge Resistance
SS/REFIN Prebias Mode Stop
Voltage
External Reference Input Range
I SS
R SS
V SS/REFIN = 0.45V, sourcing
I SS/REFIN = 10mA, sinking
V SS/REFIN rising
0
10
8.3
0.58
V IN -
1.8
F A
I
V
V
HICCUP
Number of Consecutive Current-
Limit Events to Hiccup
Timeout
POWER-GOOD OUTPUT
8
1024
Events
Clock
Cycles
PGOOD Threshold
PGOOD Threshold Hysteresis
PGOOD V OL
PGOOD Leakage
V FB rising
V FB falling
I PGOOD = 5mA, V FB = 0.5V
V PGOOD = 5V, V FB = 0.65V
0.535
0.555
28
20
0.013
0.575
60
V
mV
mV
F A
THERMAL SHUTDOWN
Thermal Shutdown Threshold
150
N C
Thermal Shutdown Hysteresis
Temperature falling
20
N C
Note 4: Specifications are 100% production tested at T A = +25 N C. Limits over the operating temperature range are guaranteed by
design and characterization.
_______________________________________________________________________________________
3
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