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参数资料
| 型号： | MAX8723ETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/18页 |
| 文件大小： | 0K |
| 描述： | IC REG FOR LCD DISPLAY 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，LCD |
| 输入电压： | 6 V ~ 13.2 V |
| 输出数： | 1 |
| 输出电压： | 3.3V，2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
Low-Cost, Internal-Switch, Step-Down
Regulator for LCD Displays
IN
C INL
INL
MAX8723
REF
LINEAR
C REF
VCC
REF
REGULATOR
SHDN
VCC2
BST
C VL
VL
SHDN
IN
GND
S
Q
C BST
C IN
R
Q
VL
LX
L
OUT
C OUT
D
EP
EA
PGND
EXT
REF
FSEL
OSC
CURRENT
SENSING
LX
OUT
VL
OUT
I.C.
150mV
FB
Figure 2. Functional Diagram
Detailed Description
The MAX8723 is a high-efficiency switching regulator
designed primarily for TFT LCD display applications. It
operates from 6V to 13.2V inputs and provides a fixed
3.3V or an adjustable output voltage. It can deliver up
to 2A of load current. Although the MAX8723 is
designed to supply power for logic control circuits used
in TFT LCD monitors and TVs, it can be used to supply
other logic control circuits as well.
The MAX8723 contains a step-down switching-regulator,
which generates a fixed 3.3V or an adjustable output
for the logic supply rail. The step-down switching-regu-
lator features a fixed-frequency current-mode control
architecture, digital soft-start, timer-delayed fault pro-
tection, and thermal-overload protection. An internal
oscillator offers three pin-selectable frequency options
(500kHz/1MHz/1.5MHz), allowing optimized designs
based on the specific application requirements. In
addition, the MAX8723 provides a 5V linear regulator
output and a 2V reference output. Figure 2 shows the
MAX8723 functional block diagram.
The step-down regulator consists of an internal n-chan-
nel MOSFET with gate driver, an internal inductor DC
resistance-based current-sense network, a cycle-by-
cycle current-limit comparator, and a PWM controller
block. The external power stage consists of an induc-
tor, input and output capacitors, and a freewheeling
device, such as a Schottky diode rectifier or a MOSFET
synchronous rectifier.
10
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相关代理商/技术参数 |
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| MAX8723EVKIT | 功能描述:电源管理IC开发工具 MAX8723 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 |
| MAX8724AETI+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8724ETI | 功能描述:电池管理 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 |
| MAX8724ETI+ | 功能描述:电池管理 Multichemistry Battery Charger 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 |
| MAX8724ETI+T | 功能描述:电池管理 Multichemistry Battery Charger 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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