参数资料
型号: MAX8720EEI+
厂商: Maxim Integrated Products
文件页数: 14/31页
文件大小: 0K
描述: IC CNTRL VID STP DWN 28-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
应用: 控制器,CPU GPU
输入电压: 2 V ~ 28 V
输出数: 1
输出电压: 0.28 V ~ 1.85 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-QSOP
供应商设备封装: 28-QSOP
包装: 管件
Dynamically Adjustable 6-Bit VID
Step-Down Controller
V BATT
2V TO 28V
REF
V+
ILIM
MAX8720
TOFF
+5V
TON
ON-TIME
COMPUTE
FROM
D/A
Q
ONE-SHOT
TRIG
9
1
BST
TON
S
Q
TRIG
ONE-SHOT
Q
R
CURRENT
LIMIT
DH
ERROR
Σ
LX
SHDN
CC
G m
G m
REF
70k ?
G m
AMP
10k ?
REF
S
R
Q
ZERO CROSSING
V DD
DL
PGND
+5V
V OUT
GNDS
FBS
FB
REF
FB
REF
-15%
+15%
CHIP SUPPLY
V CC
+5V
OVP/UVP
PGOOD
DETECT
R-2R
D/A CONVERTER
2V
REF
REF
AGND
MUX AND SLEW CONTROL
SKIP
SUS
S0, S1
D0–D5
TIME
Figure 2. MAX8720 Block Diagram
On-times translate only roughly to switching frequen-
cies. The on-times guaranteed in the Electrical
Characteristics table are influenced by switching delays
in the external high-side MOSFET. Resistive losses,
including the inductor, both MOSFETs, output-capacitor
ESR, and PC board copper losses in the output and
ground tend to raise the switching frequency at higher
output currents. Also, the dead-time effect increases the
effective on-time, reducing the switching frequency. It
occurs only in PWM mode ( SKIP = high) and during
14
______________________________________________________________________________________
相关PDF资料
PDF描述
GEC50DRXH-S734 CONN EDGECARD 100PS DIP .100 SLD
4564-682K INDUCTOR RF 6.8mH 10% RADIAL
GCC19DRTS-S734 CONN EDGECARD 38POS DIP .100 SLD
4564-562K INDUCTOR RF 5.6mH 10% RADIAL
MAX17004ETJ+ IC PS CTRLR FOR NOTEBOOKS 32TQFN
相关代理商/技术参数
参数描述
MAX8720EEI+ 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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
MAX8720EEI+T 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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
MAX8720EEI-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
MAX8720ETX 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
MAX8720ETX+ 功能描述:DC/DC 开关控制器 Dyn Adj 6-Bit VID Step-Down Controller 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