参数资料
型号: MAX1962EEP+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 VM 20-QSOP
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: 1
频率 - 最大: 1.12MHz
占空比: 90%
电源电压: 2.35 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
ELECTRICAL CHARACTERISTICS
(V VCC = 3.3V, Circuits of Figures 9–12, T A = -40°C to +85°C , unless otherwise noted.) (Note 2)
PARAMETER
V CC Input Voltage Range
V CC Input Voltage UVLO
V DD Input Voltage UVLO
Rising or falling
Rising or falling
CONDITIONS
MIN
2.35
1.95
3.90
TYP
MAX
5.50
2.3
4.45
UNITS
V
V
V
Output Voltage
MAX1960/MAX1962 (measured at FB)
SEL = GND
0.8
0.795
1.492
0.805
1.508
V
DC Output Accuracy
MAX1961/MAX1962
(FB = V DD ),
measured at output
SEL = REF
SEL not connected
1.789
2.482
1.809
2.517
V
SEL = V DD
3.272
3.339
Positive Voltage-Margining Shift
Negative Voltage-Margining Shift
MAX1960/MAX1961
MAX1960/MAX1961
3.8
-3.8
4.2
-4.2
%
%
FB Input Bias Current
Feedback Transconductance
COMP Discharge Resistance
In shutdown
-0.2
1
+0.2
3
100
μA
mS
?
Switching Frequency
SYNC Frequency Range
Maximum Duty Cycle
Maximum Duty Cycle
Quiescent Supply Current
Shutdown Supply Current
V DD Output Voltage
Reference Voltage (No Load)
Positive Current-Limit Threshold
(V CS - V OUT )
Negative Current-Limit Threshold
(V OUT - V CS )
CS Bias Current
OUT Bias Current
Current-Limit Threshold (Positive
Direction, Fixed, V PGND - V LX )
Current-Limit Threshold (Negative
Direction, Fixed, V LX - V PGND )
Current-Limit Threshold (Positive
Direction, Adjustable, V PGND - V LX )
FSET/SYNC = GND
FSET/SYNC = V CC
f = 1MHz
f = 500kHz
2.7V ≤ V VCC ≤ 5.5V, I LOAD = 1mA to 50mA
2.35V ≤ V VCC ≤ 2.7V, I LOAD = 1mA to 35mA,
C1 = 4.7μF, C6 = 22μF
2.35V ≤ V VCC ≤ 3.6V with tripler, I LOAD = 1mA
to 50mA (circuit of Figure 12)
MAX1962, V OUT = 2V
MAX1962, V OUT = 2V
MAX1962, V CS = 3.3V
MAX1961/MAX1962, V OUT = 3.3V
MAX1960/MAX1961, ILIM = V DD
MAX1960/MAX1961, ILIM = V DD
MAX1960/MAX1961, R ILIM = 160k ?
R ILIM = 400k ?
450
880
450
80
90
4.75
4.45
4.75
1.267
45
42
58
50
100
250
550
1120
1200
15
15
5.25
5.25
5.25
1.291
56
64
50
50
90
85
135
306
kHz
kHz
%
%
mA
μA
V
V
mV
mV
μA
μA
mV
mV
mV
4
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