- 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： | 7/12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
4
12/4/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2009 MPS. All Rights Reserved.
PIN FUNCTIONS
QFN16
Pin #
TSSOP16
Pin #
Name Description
1
15
SW
Step-Up Converter Power Switch Node. Connect an inductor between the input source
and SW, and connect a rectifier from SW to the main output to complete the step-up
converter. SW is the drain of the internal 250m N-Channel MOSFET switch.
2
16
CT
Timing Capacitor for Soft-Start and Power-On Sequencing. A capacitor from CT to
GND controls the soft-start and sequencing turn-on delay periods. See Power-On
Sequencing and Start-Up Timing Diagram
.
3
1
RDY
Regulators Not Ready. This pin is an open drain output, and an external 100k
pull-up resistor is required for proper operation. During startup RDY will be high
impedance. Once the turn-on sequence is complete, this pin will be pulled low if all
FB voltages exceed 80% of their specified thresholds. After all regulators are
turned-on, a fault in any regulator that causes the respective FB voltage to fall
below 80% of its threshold will cause RDY to go high after approximately 15s. If
the fault persists for more than approximately 6ms (for C4 = 10nF), the entire chip
will shut down. See Fault Sensing and Timer.
4
2
FB1
Step-Up Converter Feedback Input. FB1 is the inverting input of the internal error
amplifier. Connect a resistive voltage divider from the output of the step-up
converter to FB1 to set the step-up converter output voltage.
5
3
COMP Step-Up Converter Compensation Node. COMP is the output of the error amplifier. Connect
a series RC network to compensate the regulation control loop of the step-up converter.
6
4
IN
Internal Power Input. IN supplies the power to the MP1531. Bypass IN to PGND
with a 10F or greater capacitor.
7
5
GND Signal Ground.
8
6
REF
Reference Output. REF is the 1.25V reference voltage output. Bypass REF to GND
with a 0.1F or greater capacitor. Connect REF to the low-side resistor of the
negative linear regulator feedback string.
9
7
FB2
Negative Linear Regulator Feedback Input. Connect the FB2 feedback resistor
string between GL and REF to set the negative linear regulator output voltage. FB2
regulation threshold is GND.
10
8
FB3
Positive Linear Regulator Feedback Input. Connect the FB3 feedback resistor string
between GH and GND to set the positive linear regulator output voltage. FB3
regulation threshold is 1.25V.
11
9
EN
On/Off Control Input. Drive EN high to turn on the MP1531, drive EN low to turn it
off. For automatic startup, connect EN to IN. Once the MP1531 is turned on, it
sequences the outputs on (See Power-On Sequencing). When turned off, all
outputs are immediately disabled.
12
10
GL
Negative Linear Regulator Output. GL is the output of the negative linear regulator.
GL can supply up to 10mA to the load. Bypass GL to GND with a 1F or greater,
low-ESR, ceramic capacitor.
13
11
IN2
Negative Linear Regulator Input. IN2 is the input of the negative linear regulator. Drive
IN2 with an inverting charge pump powered from SW. IN2 can go as low as –20V. For
QFN package IN2 connects to exposed pad.
14
12
GH
Positive Linear Regulator Output. GH is the output of the positive linear regulator.
GH can supply as much as 10mA to the load. Bypass GH to GND with a 1F or
greater, low-ESR, ceramic capacitor.
15
13
IN3
Positive Linear Regulator Input. IN3 is the input to the positive linear regulator.
Drive IN3 with a doubling, tripling, or quadrupling charge pump from SW. IN3
voltage can go as high as 38V.
16
14
PGND Power Ground. PGND is the source of the internal 250m N-Channel MOSFET
switch. Connect PGND to GND as close to the MP1531 as possible.
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。