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参数资料
| 型号： | MAX1798EGP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/19页 |
| 文件大小： | 0K |
| 描述： | IC POWER SUPPLY CDMA 20-QFN |
| 标准包装： | 2,500 |
| 应用： | 手机，CDMA 手持话机 |
| 电流 - 电源： | 367µA |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-QFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN/MLP 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
CDMA Cellular/PCS System
Power Supplies
INSTRUCTION
EXECUTED
CS
SCLK
DIN
1
8
A2
A1
A0
D4
D3
D2
D1
DO
Figure 4a. Serial-Interface Timing Diagram
CS
t CSH0
t CSW
SCLK
t CSS0
t DS
t CH
t CL
t CSH1
t CSS1
t DH
DIN
Figure 4b. Detailed Serial-Interface Timing Diagram
Thermal-Overload Protection
The MAX1798/MAX1798A/MAX1799/MAX1799A inte-
grate a separate thermal monitor for each linear regula-
tor. When the junction temperature of any LDO exceeds
T J = +160°C, the specific thermal sensor signals the
shutdown logic, turning off the pass transistor and
allowing that LDO to cool. The thermal sensor turns the
pass transistor on again after the LDO’s junction tem-
perature cools by 10°C, resulting in a pulsed output
during continuous thermal-overload conditions. Due to
the substrate’s thermal conductivity, a thermal overload
on one LDO may possibly affect other LDOs on the
device.
Thermal-overload protection is designed to protect the
MAX1798/MAX1798A/MAX1799/MAX1799A in the
event of fault conditions. For continual operation, do not
exceed the absolute maximum junction-temperature
rating of T J = +150°C.
Noise Reduction
Bypass BP to GND with an external 0.01μF bypass
capacitor. The MAX1798/MAX1798A/MAX1799/
MAX1799A exhibit 45μV RMS of output voltage noise.
Graphs of Output Noise vs. Load Current, Output Noise
(10Hz to 100kHz), PSRR vs. Frequency, and Channel-
to-Channel Isolation vs. Frequency appear in the
Typical Operating Characteristics.
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1798EUP | 功能描述:PMIC 解决方案 CDMA Cellular/PCS System Power Supply RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX1798EUP+ | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1798EUP-T | 功能描述:PMIC 解决方案 CDMA Cellular/PCS System Power Supply RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX1799AEGP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1799AEUP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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