参数资料
型号: MAX15002ATL+T
厂商: Maxim Integrated Products
文件页数: 4/29页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 40-TQFNEP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 2
频率 - 最大: 2.2MHz
电源电压: 5.5 V ~ 23 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
MAX15002
Dual-Output Buck Controller with
Tracking/Sequencing
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 5.5V to 23V or V IN = V REG = 4.5V to 5.5V, V DREG_ = V REG , V PGND_ = V SYNC = V PHASE = V SEL = 0V, C REG = 2.2μF, R RT = 100k ? ,
C CT = 0.1μF, R ILIM_ = 60k ? , T A = T J = -40°C to +125°C, unless otherwise noted. Typical values are at V IN = 12V, T A = T J = +25°C.)
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PGOOD_, RESET OUTPUTS
FB_ for PGOOD_ Threshold
FB_ falling
0.54
0.555
0.57
V
RESET , PGOOD_ Output Low
Level
RESET , PGOOD_ Leakage
Sinking 3mA
-1
0.1
+1
V
μA
CT Charging Current
CT Output Low
Sinking 3mA
1.8
2
2.2
0.1
μA
V
CT Threshold for RESET Delay
CT rising
CT falling
1.8
1.2
2.6
V
OSCILLATOR
Switching Frequency Range
(Each Converter)
Switching Frequency Accuracy
(Each Converter)
Phase Delay
RT Voltage
Minimum Controllable On-Time
Minimum Off-Time
f SW
V RT
t ON(MIN)
t OFF(MIN)
V SYNC = 0V, f SW = 1.5 x 10 11 /R RT + 2k
f SW ≤ 1500kHz
f SW > 1500kHz
V PHASE = 0V (DH1 rising to DH2 rising)
V PHASE = V REG (DH1 rising to DH2 rising)
40k ? < R RT < 500k ?
200
-5
-7
180
0
2
75
150
2200
+5
+7
kHz
%
Degrees
Degrees
V
ns
ns
SYNC High-Level Voltage
SYNC Low-Level Voltage
2
0.8
V
V
SYNC Internal Pulldown Resistor
50
100
200
k ?
SYNC Frequency Range
SYNC Minimum On-Time
SYNC Minimum Off-Time
PWM Ramp Amplitude
(Peak-Peak)
PWM Ramp Valley
(Note 4)
0.4
30
30
2
1
4.6
MHz
ns
ns
V
V
Note 2: 100% production tested at T A = T J = +25°C and T A = T J = +125°C. Limits at other temperatures are guaranteed by design.
Note 3: For 5V applications, connect REG directly to IN.
Note 4: The switching frequency is 1/2 of the SYNC frequency.
4
Maxim Integrated
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