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参数资料
| 型号： | MAX1858EEG |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Dual 180∑ Out-of-Phase PWM Step-Down Controller with Power Sequencing and POR |
| 中文描述： | DUAL SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | 0.150 INCH, QSOP-24 |
| 文件页数： | 9/22页 |
| 文件大小： | 553K |
| 代理商： | MAX1858EEG |
The internal V
L
linear regulator can source over 50mA to
supply the IC, power the low-side gate driver, charge the
external boost capacitor, and supply small external
loads. When driving large FETs, little or no regulator cur-
rent may be available for external loads.
For example, when switched at 600kHz, a single large
FET with 18nC total gate charge requires 18nC
600kHz
= 11mA. To drive larger MOSFETs, or deliver larger
loads, connect V
L
to an external power supply from 4.5V
to 5.5V.
M
Dual 180° Out-of-Phase Buck Controllers with
Sequencing/Prebias Startup and POR
_______________________________________________________________________________________
9
CONVERTER 1
R
S
Q
ILIM1
DL1
PGND
LX1
DH1
BST1
V
L
- 0.5V
FB1
COMP1
SOFT-START DAC
(SEQUENCING—
MAX1858A ONLY)
OSCILLATOR
OSC
1V
P-P
SYNC
CK0
V+
5V LINEAR
REGULATOR
V
L
GND
REF
DL2
LX2
DH2
BST2
ILIM2
FB2
COMP2
CONVERTER 2
RESET
EN
UVLO
AND
SHUTDOWN
V
REF
2.0V
MAX1858A
MAX1875A
MAX1876A
RST
(MAX1858A/
MAX1876A ONLY)
V
REF
V
L
Q
5
μ
A
Figure 2. Functional Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1858A-MAX1876A | Dual 180∑ Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
| MAX1858A | Dual 180?Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
| MAX1875A | Dual 180?Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
| MAX1876A | Dual 180?Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
| MAX1858AEEG | Dual 180∑ Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1858EEG+ | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers 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 |
| MAX1858EEG+T | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers 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 |
| MAX1858EEG-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 |
| MAX1858EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX1858 MAX1875 MAX1876 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 |
| MAX185ACNG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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