- 您现在的位置：买卖IC网 > PDF目录1849 > MAX8739ETP+T (Maxim Integrated Products)IC DC/DC CONV W/OPAMP 20TQFN-EP PDF资料下载
参数资料
| 型号： | MAX8739ETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/19页 |
| 文件大小： | 0K |
| 描述： | IC DC/DC CONV W/OPAMP 20TQFN-EP |
| 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，TFT，LCD |
| 输入电压： | 1.8 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 1.8 V ~ 13 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
TFT, LCD, DC-DC Converter with
Operational Amplifiers
V IN
LX
MAX8739
IN
LDO
STEP-UP
PGND
LINEAR
REGULATOR
AND BOOTSTRAP
REGULATOR
CONTROLLER
FB
COMP
FREQ
NEG1
SRC
DRN
COM
SWITCH
OUT1
POS1
NEG1
CONTROL
OUT2
CTL
DEL
POS2
AGND
Figure 2. Functional Diagram
Table 1. Key Components List
Detailed Description
DESIGNATION
C1
C2, C3
D1
D2, D3, D4
L1
DESCRIPTION
10μF, 6.3V X5R ceramic capacitor (1206)
TDK C3216X5ROJ106M
4.7μF, 10V X5R ceramic capacitors (1206)
TDK C3216X5R1A475M
3A, 30V Schottky diode (M-flat)
Toshiba CMS02
200mA, 100V, dual, ultra-fast diodes
(SOT23)
Fairchild MMBD4148SE
3.0μH, 2.3A inductor
Sumida CDRH6D12-3R0
The MAX8739 contains a high-performance, step-up
switching regulator, two high-current operational ampli-
fiers, and startup timing and level-shifting functionality
useful for active-matrix TFT LCDs. Figure 2 shows the
MAX8739 functional diagram.
Main Step-Up Regulator
The main step-up regulator employs a current-mode,
fixed-frequency PWM architecture to maximize loop
bandwidth and provide fast transient response to
pulsed loads found in source drivers of TFT LCD pan-
els. The high-switching frequency (600kHz/1.2MHz)
allows the use of low-profile inductors and ceramic
capacitors to minimize the thickness of LCD panel
designs. The integrated, high-efficiency MOSFET and
the IC’s built-in digital soft-start functions reduce the
number of external components required while controlling
12
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| MAX8740ETB+T | IC CONV DC-DC TFT-LCD 10-TDFN |
| MAX8742EAI+ | IC CNTRLR PWR SUP 28-SSOP |
| MAX8744AETJ+T | IC CNTRLR PWR SUP QUAD 32TQFN |
| MAX8745ETJ+ | IC CNTRLR PWR SUP QUAD 32TQFN |
| MAX8751ETJ+T | IC CNTRLR CCFL INV 32-TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8739EVKIT | 功能描述:电源管理IC开发工具 MAX8739 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 |
| MAX873ACPA+ | 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 2.5V 10MA 8PDIP N - Rail/Tube |
| MAX873ACSA | 制造商:Maxim Integrated Products 功能描述: |
| MAX873ACSA-T | 制造商:Maxim Integrated Products 功能描述:8 PINS N.SO PKG - Tape and Reel |
| MAX873ACSA-TG068 | 制造商:Maxim Integrated Products 功能描述:8 PINS N.SO PKG - Bulk |
发布紧急采购，3分钟左右您将得到回复。