参数资料
型号: MAX1636EAP+T
厂商: Maxim Integrated Products
文件页数: 5/23页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 20-SSOP
标准包装: 2,000
PWM 型: 电流模式,混合
输出数: 1
频率 - 最大: 330kHz
占空比: 99%
电源电压: 3.15 V ~ 30 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(0.209",5.30mm 宽)
包装: 带卷 (TR)
Low-Voltage, Precision Step-Down
Controller for Portable CPU Power
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, SYNC = VL = V CC , I VL = 0mA, I REF = 0mA, T A = -40°C to +85°C , unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Oscillator Frequency
SYNC Input Pulse Width High
SYNC Input Pulse Width Low
SYNC = V CC
SYNC = GND
270
170
200
200
330
230
kHz
ns
ns
SYNC Input Rise/Fall Time
SYNC Input Frequency Range
Guaranteed by design
240
200
340
ns
kHz
OVERVOLTAGE PROTECTION
Overvoltage Trip Threshold
Catastrophic Output Undervoltage
Lockout Threshold
RESET Trip Threshold
FB, with respect to regulation point
% of nominal output
Falling edge (hysteresis = 1%)
3.5
60
-7
10
80
-1.5
%
%
%
INPUTS AND OUTPUTS
Logic Input Voltage High
Logic Input Voltage Low
RESET Output Voltage Low
Gate-Driver On-Resistance
SHDN , SKIP , OVP, SYNC
SHDN , SKIP , OVP, SYNC
I SINK = 4mA
High or low, DH or DL
2.4
0.8
0.4
7
V
V
V
Ω
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
__________________________________________Typical Operating Characteristics
(Circuit of Figure 1, V IN = 7V, T A = +25°C, unless otherwise noted.)
100
EFFICIENCY vs. LOAD CURRENT
(3.3V/3A CIRCUIT)
V IN = 7V
100
EFFICIENCY vs. LOAD CURRENT
(5V/3A CIRCUIT)
V IN = 7V
100
EFFICIENCY vs. LOAD CURRENT
(1.8V/1A CIRCUIT)
90
V IN = 15V
90
V IN = 15V
90
V IN = 7V
80
80
80
70
V IN = 22V
V IN = 30V
70
V IN = 22V
V IN = 30V
70
V IN = 15V
V IN = 22V
60
50
60
50
60
50
1m
10m
100m
1
10
1m
10m
100m
1
10
1m
10m
100m
1
10
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
_______________________________________________________________________________________
5
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