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| 型号： | MAX1637EEE |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| PWM 型： | 电流模式，混合 |
| 输出数： | 1 |
| 频率 - 最大： | 338kHz |
| 占空比： | 96% |
| 电源电压： | 3.15 V ~ 5.5 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
Miniature, Low-Voltage,
Precision Step-Down Controller
ABSOLUTE MAXIMUM RATINGS
GND to PGND .............................................................+2V to -2V
LX, BST to GND......................................................-0.3V to +36V
BST, DH to LX...........................................................-0.3V to +6V
V CC , V GG , CSL, CSH, SHDN to GND.......................-0.3V to +6V
DL to GND..................................................-0.3V to (V GG + 0.3V)
REF, SKIP , SYNC, CC to GND ...................-0.3V to (V CC + 0.3V)
REF Output Current.............................................................20mA
REF Short-Circuit to GND ..............................................Indefinite
Operating Temperature Range ...........................-40°C to +85°C
Continuous Power Dissipation (T A = +70°C)
QSOP (derate 8.3mW/°C above +70°C) ......................667mW
Storage Temperature Range .............................-65°C to +160°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 CC = V GG = 5V, SYNC = V CC , 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
SMPS CONTROLLER
Input Voltage Range
V CC , V GG
3.15
5.5
V
Output Voltage
Output Adjustment Range
FB tied to V OUT , 0mV < (CSH - CSL) < 80mV,
includes line and load regulation
V CC = 5V
V CC = 3.3V
1.080
V REF
V REF
1.100
1.120
5.5
3.6
V
V
Current-Limit Threshold
Power Consumption
CSH > CSL
CSH < CSL
Output not switching
V CC = V GG = 5V
V CC = V GG = 3.3V
80
-145
100
-100
1.5
1
120
-55
2.5
1.75
mV
mW
Shutdown Supply Current
FB Input Current
Soft-Start Ramp Time
SHDN = GND, V CC = V GG
V FB = V REF
SHDN to full current limit, four levels
-50
0.5
512
3
50
μA
nA
clocks
Idle-Mode Switchover Threshold
AC Load Regulation
CSH - CSL
CSH - CSL = 0mV to CSH - CSL = 100mV
20
30
2
40
mV
%
INTERNAL REFERENCE
V CC Undervoltage Lockout Threshold
V GG Undervoltage Lockout Threshold
Rising edge, hysteresis = 15mV
Rising edge, hysteresis = 15mV
2.80
2.80
3.05
3.05
V
V
REF Output Voltage
REF Load Regulation
REF Line Regulation
REF load = 0μA
REF load = 0μA to 50μA
V CC = 3.15V to 5.5V
1.080
1.100
1.120
10
3
V
mV
mV
OSCILLATOR
Oscillator Frequency
Maximum Duty Factor
SYNC = V CC
SYNC = GND
SYNC = V CC
SYNC = GND
270
170
89
93
300
200
92
96
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
(Note 1)
240
200
340
ns
kHz
2
_______________________________________________________________________________________
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| MAX1637EEE+ | 功能描述:DC/DC 开关控制器 Mini Precision Step Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EEE+T | 功能描述:DC/DC 开关控制器 Mini Precision Step Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EEE-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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