参数资料
型号: MAX8686ETL+T
厂商: Maxim Integrated Products
文件页数: 4/23页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 25A 40TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
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: 0.7 V ~ 5.5 V
输入电压: 4.5 V ~ 20 V
PWM 型: 电流模式
频率 - 开关: 300kHz ~ 1MHz
电流 - 输出: 25A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 40-TQFN-EP(6x6)
Single/Multiphase, Step-Down,
DC-DC Converter Delivers Up to 25A Per Phase
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V INA = 12V, VL = AVL, V REFIN = 1V, V RS+ - V RS- = 1V, V RS- = 0V, V EN/SLOPE = 1.25V, V CS+ = V CS- = 1V, R ILIM = 122k Ω , C VL = 1μF,
C AVL = 0.22μF, C FREQ = 270pF, T A = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR (FREQ)
Source Current
Switching Frequency
V FREQ = 2V, T A = -40°C to +85°C
C FREQ = 180pF
C FREQ = 580pF
480
0.8
240
500
1
300
520
1.2
360
μA
MHz
kHz
Minimum On-Time
100
ns
FREQ Discharge Resistance
10
50
Ω
Ramp Peak Voltage
2.60
V AVL /2
2.85
V
SLOPE COMPENSATION (EN/SLOPE)
V SLOPE Range
1.25
2.50
V
SLOPE Source Current
8
10
12
μA
THERMAL PROTECTION
Thermal Shutdown
Thermal-Shutdown Hysteresis
Rising temperature
160
30
°C
°C
POWER-OK (POK)
POK Threshold
POK Output Voltage Low
POK Leakage Current
V OUT rising
V OUT falling
V RS+ - V RS- = 0.8V, I POK = 2mA
V POK = 5.5V
87
90
87
25
0.001
93
200
1
%V OUT
mV
μA
OVERVOLTAGE OUTPUT PROTECTION (OVP)
Overvoltage Fault Trip Level
V REFIN = 3.3V, V RS+ rising, percentage of V OUT in
regulation
115
120
125
%
ENABLE (EN/SLOPE)
EN Logic-High
EN Logic-Low
BST
Internal PMOS On-Resistance
Note 2: Specifications to T A = -40°C are guaranteed by design and not production tested.
1.2
8
0.7
V
V
Ω
4
_______________________________________________________________________________________
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