- 您现在的位置：买卖IC网 > PDF目录1839 > MAX17019ATM+T (Maxim Integrated Products)IC VOLT CTRL QUAD OUT 48-TQFN-EP PDF资料下载
参数资料
| 型号： | MAX17019ATM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/25页 |
| 文件大小： | 0K |
| 描述： | IC VOLT CTRL QUAD OUT 48-TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 嵌入式系统，控制台/机顶盒 |
| 电源电压： | 5.5 V ~ 38 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
High-Input-Voltage Quad-Output Controller
Pin Description (continued)
PIN
NAME
FUNCTION
5V Analog Bias Supply. V CC powers all the analog control blocks (error amplifiers, current-sense amplifiers,
17
V CC
fault comparators, etc.) and control logic. Connect V CC to the 5V system supply with a series 10
resistor,
and bypass to analog ground using a 1μF or greater ceramic capacitor.
18
19
20
21
22
23
24
25
26
27
28
29
30
31, 32,
33
34
35
INA
UP /DN
FREQ
REF
AGND
CSNA
CSPA
FBA
POKA
DHA
LXA
BSTA
DLA
LXB
BSTB
POKB
Input to the Circuit in Reg A in Boost Mode. Connect INA to LDO5 in step-down mode ( UP /DN = V CC ).
Converter Configuration Selection Input for Regulator A. When UP /DN is pulled high ( UP /DN = V CC ), regulator A
operates as a step-down converter (Figure 1). When UP /DN is pulled low ( UP /DN = GND), regulator A operates
as a low-voltage step-up converter. (Refer to the MAX17017 data sheet for step-up configuration.)
Trilevel Oscillator Frequency Selection Input:
FREQ = V CC : RegA = 250kHz, RegB = 500kHz, RegC = 250kHz
FREQ = REF: RegA = 375kHz, RegB = 750kHz, RegC = 375kHz
FREQ = GND: RegA = 500kHz, RegB = 1MHz, RegC = 500kHz
1.25V Reference-Voltage Output. Bypass REF to analog ground with a 0.1μF ceramic capacitor. The
reference sources up to 50μA for external loads. Loading REF degrades output voltage accuracy according
to the REF load-regulation error. The reference shuts down when the system pulls SHDN low in buck mode
( UP /DN = GND).
Analog Ground
Negative Current-Sense Input for the Main Switching Regulator. Connect to the negative terminal of the current-
sense resistor. Due to the CSNA bias current requirements, limit the series impedance to less than 10 .
Positive Current-Sense Input for the Main Switching Regulator. Connect to the positive terminal of the current-
sense resistor. Due to the CSPA bias current requirements, limit the series impedance to less than 10 .
Feedback Input for the Main Switching Regulator. FBA regulates to 1.0V.
Open-Drain Power-Good Output for the Main Switching Regulator. POKA is low if FBA is more than 12% (typ)
above or below the nominal 1.0V feedback regulation point. POKA is held low during soft-start and in
shutdown. POKA becomes high impedance when FBA is in regulation.
High-Side Gate-Driver Output for the Main Switching Regulator. DHA swings from LXA to BSTA.
Inductor Connection of Converter A. Connect LXA to the switched side of the inductor.
Boost Flying Capacitor Connection of Converter A. The MAX17019 needs an external boost switch/diode
connected between V DD and BSTA. Connect to an external capacitor as shown in Figure 1.
Low-Side Gate-Driver Output for the Main Switching Regulator. DLA swings from GND to V DD .
Inductor Connection for the Internal 3A Step-Down Converter. Connect LXB to the switched side of the
inductor.
Boost Flying Capacitor Connection for the Internal 3A Step-Down Converter. The MAX17019 includes an
internal boost switch/diode connected between V DD and BSTB. Connect to an external capacitor as shown
in Figure 1.
Open-Drain Power-Good Output for the Internal 3A Step-Down Converter. POKB is low if FBB is more than
12% (typ) above or below the nominal 0.75V feedback-regulation threshold. POKB is held low during soft-
start and in shutdown. POKB becomes high impedance when FBB is in regulation.
______________________________________________________________________________________
13
相关PDF资料 |
PDF描述 |
|---|---|
| MAX17020ETJ+ | IC CTLR PWM DUAL STEP DN 32-TQFN |
| MAX17022ETA+T | IC GAUGE 1WIRE UART 8TDFN |
| MAX17024ETD+T | IC REG CTRLR DIVIDER PWM 14TDFN |
| MAX17028GTJ+ | IC PWM CTRL IMVP-6.5/GMCH 32TQFN |
| MAX17030GTL+ | IC CTRLR VID QUICK-PWM 40-TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17019EVKIT+ | 功能描述:电源管理IC开发工具 Maxim Evaluation 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 |
| MAX17019NEVKIT+ | 功能描述:电源管理IC开发工具 Maxim Evaluation 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 |
| MAX1701EEE | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
| MAX1701EEE+ | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
| MAX1701EEE+T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
发布紧急采购，3分钟左右您将得到回复。