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| 型号： | MAX17020ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/34页 |
| 文件大小： | 0K |
| 描述： | IC CTLR PWM DUAL STEP DN 32-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| 应用： | 电源 |
| 电流 - 电源： | 1mA |
| 电源电压： | 6 V ~ 24 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
Pin Description (continued)
PIN
26
27
28
29
30
31
32
—
NAME
DH2
ON2
PGOOD2
SKIP
OUT2
ILIM2
REFIN2
EP
FUNCTION
High-Side Gate-Driver Output for SMPS2. DH2 swings from LX2 to BST2.
Enable Input for SMPS2. Drive ON2 high to enable SMPS2. Drive ON2 low to shut down SMPS2.
Open-Drain Power-Good Output for SMPS2. PGOOD2 is low when the output voltage is more than 150mV
(typ) below the REFIN2 voltage or more than 16% below the preset voltage, during soft-start, in shutdown,
and when the fault latch has been tripped. After the soft-start circuit has terminated, PGOOD2 becomes high
impedance if the output is in regulation. PGOOD2 is blanked—forced high-impedance state—when a
dynamic REFIN transition is detected.
Pulse-skipping Control Input. This three-level input determines the operating mode for the switching
regulators:
High (V CC ) = Forced-PWM operation
Open/REF (2V) = Ultrasonic mode
GND = Pulse-skipping mode
Output Voltage-Sense Input for SMPS2. OUT2 is an input to the Quick-PWM on-time one-shot timer. OUT2
also serves as the feedback input for the preset 3.3V (REFIN2 = V CC ) and 1.05V (REFIN2 = RTC).
Valley Current-Limit Adjustment for SMPS2. The GND - LX2 current-limit threshold is 1/10 the voltage present
on ILIM2 over a 0.2V to 2V range. An internal 5μA current source allows this voltage to be set with a single
resistor between ILIM2 and analog ground.
External Reference Input for SMPS2. REFIN2 sets the feedback-regulation voltage (V OUT2 = V REFIN2 ). The
MAX17020 includes an internal window comparator to detect when the REFIN2 voltage changes, allowing the
controller to blank PGOOD2 and the fault protection. Connect REFIN2 to RTC for fixed 1.05V operation.
Connect REFIN2 to V CC for fixed 3.3V operation.
Exposed Pad. Connect the backside exposed pad to AGND.
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17020EVKIT+ | 制造商:Maxim Integrated Products 功能描述:SINGLE QUICK-PWM STEP-DOWN CONTROLL - Boxed Product (Development Kits) |
| MAX17021EVKIT+ | 功能描述:电源管理IC开发工具 MAX17021 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX17021GTL+ | 功能描述:电压模式 PWM 控制器 Dual-Phase, Quick-Pw M Controllers For Im RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX17021GTL+T | 功能描述:电压模式 PWM 控制器 Dual-Phase, Quick-Pw M Controllers For Im RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX17022ETA+T | 功能描述:电池管理 Fuel Guage For Portable Devices RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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