- 您现在的位置：买卖IC网 > PDF目录183240 > MP1531DQ-LF-Z (MONOLITHIC POWER SYSTEMS INC) 0.65 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, QCC16 PDF资料下载
参数资料
| 型号： | MP1531DQ-LF-Z |
| 厂商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.65 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, QCC16 |
| 封装： | 3 X 3 MM, ROHS COMPLIANT, MO-220VEED-4, QFN-16 |
| 文件页数： | 11/12页 |
| 文件大小： | 287K |
| 代理商： | MP1531DQ-LF-Z |
MP1531 – LOW POWER, TRIPLE OUTPUT STEP-UP PLUS CHARGE PUMP FOR TFT BIAS
MP1531 Rev. 1.3
www.MonolithicPower.com
8
12/4/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2009 MPS. All Rights Reserved.
Selecting the Inductor
The inductor is required to force the higher
output voltage while being driven by the input
voltage. A larger value inductor results in less
ripple current that results in lower peak inductor
current. However, the larger value inductor has
a larger physical size, higher series resistance,
lower saturation current for a given package
size.
Choose an inductor that does not saturate at
heavy load transients and start-up conditions. A
good rule for determining the inductance is to
allow the peak-to-peak ripple current to be
approximately 30-50% of the maximum input
current. Make sure that the peak inductor
current is below the device current limit to
prevent loss of regulation. Calculate the
required inductance value by the equation:
()
I
f
V
1
L
SW
MAIN
IN
MAIN
IN
Δ
×
=
Where VIN is the input voltage, fSW is the
switching frequency, and ΔI is the peak-to-peak
inductor ripple current.
Selecting the Input Capacitor
An input capacitor is required to supply the AC
ripple current to the inductor, while limiting noise
at the input source. A low ESR capacitor is
required to keep the noise at the IC to a minimum.
Since it absorbs the input switching current it
requires an adequate ripple current rating. Use a
capacitor with RMS current rating greater than the
inductor ripple current (see Selecting The Inductor
to determine the inductor ripple current). The
input capacitor in Figure 3 is necessary in most
lab setups, but can be reduced in typical
application circuits if the source impedance is
lower.
MP1531
SW
FB1
IN
CT
PGND
GND
FB3
GH
IN3
REF
EN
COMP
RDY
RDY
IN2
GL
FB2
VGL
-10V
C9
56pF
C3
10nF
C4
10nF
D1
B0530W
VIN
2.7V to 4.2V
VMAIN
5V
VGH
15V
C7
56pF
D2
BAS40-04-7
D3
BAS40-04-7
D4
BAS40-04-7
SW
D5
BAS40-04-7
D7
BAS40-04-7
D6
BAS40-04-7
OFF ON
Figure 3—Triple Output Boost Application Circuit
相关PDF资料 |
PDF描述 |
|---|---|
| MP2-H096-43S1-S-TG30 | 96 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| MP2-H096-43S1-S-TG | 96 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| MP2-H096-43S1-S-TR30 | 96 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| MP2-H096-43S1-S-TR40B | 96 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
| MP2-H096-43S2-S-FJ | 96 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MP154 | 功能描述:桥式整流器 15A 400V RoHS:否 制造商:Vishay 产品:Single Phase Bridge 峰值反向电压:1000 V 最大 RMS 反向电压: 正向连续电流:4.5 A 最大浪涌电流:450 A 正向电压下降:1 V 最大反向漏泄电流:10 uA 功率耗散: 最大工作温度:+ 150 C 长度:30.3 mm 宽度:4.1 mm 高度:20.3 mm 安装风格:Through Hole 封装 / 箱体:SIP-4 封装:Tube |
| MP1540 | 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:1.3MHz,18V Step-Up Converter |
| MP1540DJ-LF-P | 功能描述:开关变换器、稳压器与控制器 1.3MHz, 18V Step-up Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MP1540DJ-LF-Z | 功能描述:开关变换器、稳压器与控制器 1.3MHz, 18V Step-up Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MP1541 | 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:1.3MHz Boost Converter |
发布紧急采购，3分钟左右您将得到回复。