参数资料
型号: MAX15022ATI+T
厂商: Maxim Integrated
文件页数: 4/28页
文件大小: 0K
描述: IC REG QD BCK/LINEAR SYNC 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
拓扑: 降压(降压)同步(2),线性(LDO)(2)
功能: 任何功能
输出数: 4
频率 - 开关: 500kHz ~ 4MHz
电压/电流 - 输出 1: 0.6 V ~ 5.5 V,4A
电压/电流 - 输出 2: 0.6 V ~ 5.5 V,2A
电压/电流 - 输出 3: 控制器
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers
ELECTRICAL CHARACTERISTICS (continued)
(V AVIN = V PVIN_ = V DVDD_ = 3.3V, V PGND_ = V SGND = 0V, R T = 25k ? , and T A = T J = -40°C to +125°C, unless otherwise noted.
Typical values are at T A = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ENABLE/SEL
EN_ Threshold
V EN_ rising
1.207
1.225
1.243
V
EN_ Hysteresis
0.12
V
EN_ Input Current
-2.5
+2.5
μA
SEL High Threshold
SEL Low Threshold
0.85 x V AVIN
0.2 x V AVIN
V
V
SEL Input Bias Current
Present only during startup
-100
+100
μA
OSCILLATOR
Switching Frequency Range
f SW
f SW = 4MHz x [V RT (V)/1.067(V)] (Note 4)
4000
kHz
Oscillator Accuracy
Phase Shift Between Regulators
f SW ≤ 1500kHz
f SW > 1500kHz
-6
-10
180
+6
+10
%
Degrees
RT Current
RT Voltage Range
V RT
0 < V RT < 1.067V
31.30
0.130
32.00
32.58
1.067
μA
V
Minimum Controllable On-Time
Minimum Controllable Off-Time
PWM Ramp Amplitude
PWM Ramp Valley
THERMAL SHUTDOWN
60
60
V AVIN /4
0.3
ns
ns
V
V
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Temperature rising
+160
15
°C
°C
Note 3: Specifications are 100% production tested at T A = +25°C and T A = +125°C. Maximum and minimum specifications over
temperature are guaranteed by design.
Note 4: When operating with V AVIN = 2.5V, the maximum operating frequency should be derated to 3MHz.
4
_______________________________________________________________________________________
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