参数资料
| 型号： | LT3513IUHF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG 5-OUT FOR TFT-LCD 38QFN |
| 标准包装： | 52 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 4.5 V ~ 30 V |
| 输出数： | 5 |
| 输出电压： | 0.8 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-WFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 管件 |
| 产品目录页面： | 1332 (CN2011-ZH PDF) |
LT3513
2MHz High Current
5-Output Regulator
for TFT-LCD Panels
4.5V to 30V Input Voltage Range
Four Integrated Switches: 2.2A Buck, 1.5A Boost,
External NPN LDO Driver
Fixed Frequency, Low Noise Outputs
Inductor Current Sense for Buck
Soft-Start for All Outputs
Externally Programmable V ON Delay
Three Integrated Schottky Diodes
PGOOD Pin for AV DD Output Disconnect
PanelProtect? Circuitry Disables V ON Upon Fault
Thermally Enhanced 38-Lead 5mm × 7mm QFN
Automotive TFT-LCD Displays
Large TFT-LCD Desktop Monitors
Flat Panel Televisions
FEATURES
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0.25A Boost, 0.25A Inverter (Guaranteed Minimum
Current Limit)
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Package
APPLICATIONS
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TYPICAL APPLICATION
DESCRIPTION
The LT ? 3513 5-output adjustable switching regulator
provides power for large TFT-LCD panels. The 38-pin
5mm × 7mm QFN device can generate a 3.3V or 5V logic
supply along with the triple output supply required for the
TFT-LCD panel. A lower voltage secondary logic supply
may also be generated with the addition of an external
NPN driven by the internal linear regulator. A step-down
regulator provides a low voltage output, V LOGIC , with up
to 1.2A of current while capable of operating from a wide
input range of 4.5V to 30V. A high power step-up con-
verter, a lower power step-up converter and an inverting
converter provide the three independent output voltages:
AV DD , V ON and V OFF required by the LCD panel. A high-side
PNP provides delayed turn-on of the V ON signal and can
handle up to 30mA. Protection circuitry ensures that V ON
is disabled if any of the four outputs are more than 10%
below the programmed voltage.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PanelProtect, True Color PWM and ThinSOT are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
V OFF
–10V
20mA
2.2μF
V IN
8V TO 16V
69.8k
0.47μF
10μH
10μF 178k
60.4k
V LOGIC
5V
UVLO LDOPWR V IN
SW4
D4
10μH
SW2
FB2
PGOOD
53.6k
10k
100k
10μF
AV DD
8V
80mA
Start-Up Waveforms
NFB4
RUN-SS1
V LOGIC
5V
0.5A
10k
30.1k
22μF
10k
4.7μH
0.22μF
BIAS
BOOST
SW1
SENSE +
SENSE –
FB1
LT3513
RUN-SS2
RUN-SS3/4
C T
V ON_CLK
V ON
V ONSINK
47nF
V ON_CLK
232k
15nF
15nF
15nF
V ON
22V
20mA
RUN/SS 2V/DIV
V LOGIC 5V/DIV
AV DD 10V/DIV
V OFF 10V/DIV
V E3 20V/DIV
V LOGIC
V LDO
3.3V
0.5A
42.2k
BD
FB5
V C1
V C2
GND
V C3
E3
SW3
FB3
V C4
6.8μH
5V
165k
10k
2.2μF
0.47μF
V ON 20V/DIV
I IN(AVG) 1A/DIV
5ms/DIV
3513 TA01b
10μF
7.5k
4.7k
30k
13k
10k
2.7nF
4.7nF 1.5nF
2.2nF
3513 TA01a
3513fc
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3513IUHF-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:2MHz High Current 5-Output Regulator for TFT-LCD Panels |
| LT3514EFE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 24-TSSOP 制造商:Linear Technology 功能描述:BUCK 350KHZ-2.2MHZ 3.2-36V 制造商:Linear Technology 功能描述:BUCK, 350KHZ-2.2MHZ, 3.2-36V, TSSOP-24 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 2.1MHZ, TSSOP-24, Primary Input Voltage:36V, No. of Outputs:3, Output Current:2A, No. of Pins:24, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited, Package / Case:24-TSSOP |
| LT3514EUFD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK ADJ |
| LT3514EUFD#TRPBF | 制造商:Linear Technology 功能描述:IC REG BUCK ADJ |
| LT3514IFE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 24-TSSOP 制造商:Linear Technology 功能描述:BUCK 350KHZ-2.2MHZ 3.2-36V 制造商:Linear Technology 功能描述:BUCK, 350KHZ-2.2MHZ, 3.2-36V, TSSOP-24 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 2.1MHZ, TSSOP-24, Primary Input Voltage:36V, No. of Outputs:3, Output Current:2A, No. of Pins:24, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited, Package / Case:24-TSSOP 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Triple Step-Down Switching Regulator with 100% Duty Cycle O |
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