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参数资料
| 型号： | MAX1636EAP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/23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： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 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 = 0°C to +85°C , unless otherwise noted. Typical values
are at T A = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INTERNAL VL REGULATOR AND REFERENCE
V CC = 5V, I(VL) = 0
60
Regulator Supply Current (V+)
Standby Supply Current (V+)
V CC = 5V, I(VL) = 0, V+ = 4.5V
(includes PNP base current)
SHDN = GND, OVP = V CC
500
60
μA
μA
VL Output Voltage
VL Undervoltage Lockout Threshold
VL/ V CC Switchover Threshold
REF Output Voltage
REF Load Regulation
REF Line Regulation
I(VL) = 0 to 25mA, 5V < V+ < 30V
I(VL) = 0 to 25mA, 6V < V+ < 30V
Rising edge, hysteresis = 25mV
Rising edge, hysteresis = 25mV
No REF load
REF load = 0 to 50μA
V CC = 3.3V to 5.5V
4.5
4.7
3.45
1.090
5.0
5.0
3.60
3.15
1.100
5.3
5.3
3.75
1.110
10
3
V
V
V
V
mV
mV
OSCILLATOR
Oscillator Frequency
Maximum Duty Factor
Maximum Duty Factor, Dropout Mode
SYNC = V CC
SYNC = GND
SYNC = V CC
SYNC = GND
SYNC = GND
270
170
91
93
98
300
200
94
96
99
330
230
kHz
%
%
SYNC Input Pulse Width High
SYNC Input Pulse Width Low
200
200
ns
ns
SYNC Input Rise/Fall Time
SYNC Input Frequency Range
Guaranteed by design
240
200
340
ns
kHz
OVERVOLTAGE PROTECTION
Overvoltage Trip Threshold
Overvoltage Fault Propagation Delay
Thermal Shutdown Threshold
Catastrophic Output Undervoltage
Lockout Threshold
Catastrophic Output Undervoltage
Lockout Delay
RESET Trip Threshold
FB, with respect to regulation point
FB to DL delay, 22mV overdrive, C GATE = 2000pF
Hysteresis = 10°C
% of nominal output
From shutdown or power-on-reset state
Falling edge (hysteresis = 1%)
4
60
-6
7
1.25
150
70
6144
10
80
-3
%
μs
°C
%
clks
%
RESET Delay Time
INPUTS AND OUTPUTS
32768
clks
Logic Input Voltage High
Logic Input Voltage Low
SHDN , SKIP , OVP, SYNC
SHDN , SKIP , OVP, SYNC
2.4
0.8
V
V
Logic Input Bias Current
SHDN Input Bias Current
RESET Output Voltage Low
RESET Output Leakage Current
Pin at GND or V CC ; SKIP , OVP, SYNC
SHDN = GND or V+
I SINK = 4mA
+5.5V stress voltage applied
-1
-3
1
3
0.4
1
μA
μA
V
μA
_______________________________________________________________________________________
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