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参数资料
| 型号： | MAX17024ETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/25页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR DIVIDER PWM 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 600kHz |
| 电源电压： | 2 V ~ 26 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 是 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
Single Quick-PWM Step-Down
Controller with Dynamic REFIN
ABSOLUTE MAXIMUM RATINGS
TON to GND ...........................................................-0.3V to +28V
V DD to GND ..............................................................-0.3V to +6V
V CC to GND ................................................-0.3V to (V DD + 0.3V)
EN, PGOOD to GND.................................................-0.3V to +6V
REF, REFIN to GND ....................................-0.3V to (V CC + 0.3V)
CS, FB to GND ...........................................-0.3V to (V CC + 0.3V)
DL to GND ..................................................-0.3V to (V DD + 0.3V)
BST to GND .................................................(V DD - 0.3V) to +34V
BST to LX..................................................................-0.3V to +6V
DH to LX ....................................................-0.3V to (V BST + 0.3V)
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation (T A = +70°C)
14-Pin 3mm x 3mm TDFN
(derated 24.4mW/°C above +70°C)....................1951mW
Operating Temperature Range (extended) .........-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
BST to V DD .............................................................-0.3V to +28V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, V DD = V CC = V EN = 5V, REFIN = REF. T A = 0°C to +85°C , unless otherwise specified. Typical values
are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
Input Voltage Range
V IN
2
26
V
Quiescent Supply Current (V DD )
Shutdown Supply Current (V DD )
I DD + I CC
I SHDN
FB forced above REFIN
EN = GND, T A = +25°C
0.7
0.1
1.2
2
mA
μA
V DD -to-V CC Resistance
R CC
20
V IN = 12V,
R TON = 97.5k
(600kHz)
118
139
160
On-Time
t ON
V FB = 1.0V
R TON = 200k
(300kHz)
250
278
306
ns
(Note 3)
R TON = 302.5k
354
417
480
Minimum Off-Time
TON Shutdown Supply Current
REFIN Voltage Range
REFIN Input Current
FB Voltage Range
t OFF(MIN)
V REFIN
I REFIN
V FB
(Note 3)
EN = GND, V TON = 26V,
V CC = 0V or 5V, T A = +25°C
(Note 2)
REFIN = 0.5V to 2V, T A = +25°C
(Note 2)
T A = +25°C
V REFIN = 0.5V,
measured at FB,
T A = 0°C to +85°C
V IN = 2V to 26V
0
-50
0
0.495
0.493
200
0.01
0.5
300
1
V REF
+50
V REF
0.505
0.507
ns
μA
V
nA
V
FB Voltage Accuracy
V FB
V REFIN = 1.0V
T A = +25°C
T A = 0°C to +85°C
0.995
0.993
1.0
1.005
1.007
V
V REFIN = 2.0V
T A = 0°C to +85°C
1.990
2.0
2.010
FB Input Bias Current
FB Output Low Voltage
Load-Regulation Error
Line-Regulation Error
I FB
0.5V to 2.0V, T A = +25°C
I SINK = 3mA
V CS = 2mV to 20mV
V CC = 4.5V to 5.5V, V IN = 4.5V to 26V
-0.1
0.1
0.25
+0.1
0.4
μA
V
%
%
Soft-Start/Stop Slew Rate
Dynamic REFIN Slew Rate
SS SR
DYN SR
Rising/falling edge on EN
Rising edge on REFIN
0.4
3
1.2
9.45
2.2
18
mV/μs
mV/μs
2
_______________________________________________________________________________________
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