参数资料
型号: MAX797HESE+T
厂商: Maxim Integrated Products
文件页数: 3/8页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 16-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 混合物
输出数: 1
频率 - 最大: 330kHz
占空比: 96%
电源电压: 4.5 V ~ 40 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: 16-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
High-Voltage, Step-Down Controller with
Synchronous Rectifier for CPU Power
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, GND = PGND = 0V, IVL = IREF = 0A, T A = 0°C to +85°C , SYNC = 0V, unless otherwise noted.)
PARAMETER
Reference Output Voltage
Reference Fault Lockout Voltage
Reference Load Regulation
CSL Shutdown Leakage Current
V+ Shutdown Current
V+ Off-State Leakage Current
Dropout Power Consumption
Quiescent Power Consumption
CONDITIONS
No external load (Note 1)
Falling edge
0μA < I REF < 100μA
SHDN = 0V, CSL = 6V, V+ = 0V or 30V, VL = 0V
SHDN = 0V, V+ = 30V, CSL = 0V or 6V
FB = CSH = CSL = 6V, VL switched over to CSL
V+ = 4V, CSL = 0V (Note 2)
CSH = CSL = 6V
MIN
2.45
1.8
TYP
2.505
0.1
1
1
4
4.8
MAX
2.55
2.3
50
1
5
5
8
6.6
UNITS
V
V
mV
μA
μA
μA
mW
mW
OSCILLATOR AND INPUTS/OUTPUTS
Oscillator Frequency
SYNC = REF
SYNC = 0V or 5V
270
125
300
150
330
175
kHz
SYNC High Pulse Width
SYNC Low Pulse Width
200
200
ns
ns
SYNC Rise/Fall Time
Oscillator Sync Range
Guaranteed by design
190
200
340
ns
kHz
Maximum Duty Factor
SYNC = REF
SYNC = 0V or 5V
89
93
91
96
%
Input High Voltage
Input Low Voltage
Input Current
DL Sink/Source Current
DH Sink/Source Current
DL On-Resistance
DH On-Resistance
SYNC
SHDN , SKIP
SYNC
SHDN , SKIP
SHDN , 0V or 30V
SYNC, SKIP
CSH, CSL, CSH = CSL = 4V, device not shut down
FB, FB = REF
DL forced to 2V
DH forced to 2V, BST - LX = 4.5V
High or low
High or low, BST - LX = 4.5V
VL - 0.5
2.0
1
1
0.8
0.5
2.0
1.0
50
±100
7
7
V
V
μA
nA
A
A
?
?
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3
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