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| 型号： | MAX797HESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/8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： | 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-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
High-Voltage, Step-Down Controller with
Synchronous Rectifier for CPU Power
ABSOLUTE MAXIMUM RATINGS
V+ to GND ................................................................-0.3V to 36V
GND to PGND........................................................................±2V
VL to GND...................................................................-0.3V to 7V
BST to GND ..............................................................-0.3V to 46V
DH to LX .....................................................-0.3V to (BST + 0.3V)
LX to BST ....................................................................-7V to 0.3V
SHDN to GND ...........................................................-0.3V to 36V
SYNC, SS, REF, FB, SKIP , DL to GND ...........-0.3V to (VL + 0.3V)
CSH, CSL to GND.......................................................-0.3V to 7V
VL Short Circuit to GND..............................................Momentary
REF Short Circuit to GND ...........................................Continuous
VL Output Current ...............................................................50mA
Continuous Power Dissipation (T A = +70°C)
SO (derate 8.70mW/°C above +70°C) ........................696mW
Operating Temperature Range
MAX797HESE .................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 15V, GND = PGND = 0V, IVL = IREF = 0A, T A = 0°C to +85°C , SYNC = 0V, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
+3.3V AND +5V STEP-DOWN CONTROLLERS
Input Supply Range
V+
High-side MOSFET drain
4.5
30
40
V
0mV < (CSH - CSL) < 80mV, FB = VL,
5V Output Voltage (CSL)
6V < power input < 40V, includes line and load
4.85
5.10
5.25
V
regulation (Note 4)
0mV < (CSH - CSL) < 80mV, FB = 0V,
3.3V Output Voltage (CSL)
4.5V < power input < 40V, includes line and load
3.20
3.35
3.46
V
regulation (Note 4)
Nominal Adjustable Output
Voltage Range
External resistor divider
REF
6
V
Feedback Voltage
Load Regulation
Line Regulation
Current-Limit Voltage
SS Source Current
CSH - CSL = 0V
0mV < (CSH - CSL) < 80mV
25mV < (CSH - CSL) < 80mV
FB = VL, 6V < power input < 40V (Note 4)
FB = 0V, 4.5V < power input < 40V (Note 4)
CSH - CSL, positive
CSH - CSL, negative
2.43
80
-50
2.5
2.505
2.5
1.5
0.04
0.04
100
-100
4.0
2.57
0.06
0.06
120
-160
6.5
V
%
%/V
mV
μA
SS Fault Sink Current
INTERNAL REGULATOR AND
FLYBACK/PWM CONTROLLER REFERENCE
2.0
mA
VL Output Voltage
VL Fault Lockout Voltage
VL/CSL Switchover Voltage
SHDN = 2V, 0mA < I VL < 25mA, 5.5V < V+ < 30V
Rising edge, hysteresis = 15mV
Rising edge, hysteresis = 25mV
4.7
3.8
4.2
5.3
4.1
4.7
V
V
V
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
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| MAX797MJE | 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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| MAX798ESE | 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 |
| MAX798ESE+ | 功能描述:直流/直流开关转换器 Step-Down Controller for CPU Power RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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