- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67758 > LTC3459ES6#PBF (LINEAR TECHNOLOGY CORP) 0.09 A SWITCHING REGULATOR, PDSO6 PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC3459ES6#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.09 A SWITCHING REGULATOR, PDSO6 |
| 封裝： | LEAD FREE, PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 216K |
| 代理商： | LTC3459ES6#PBF |
LTC3459
8
3459fc
OPERATION
Inductor Selection
An inductor with a minimum value of 15μH is recommended
for use with the LTC3459. Values larger than 15μH will
result in lower ripple current and switching frequency.
High frequency ferrite core materials are strongly recom-
mended. Some inductors meeting these requirements are
listed in Table 1.
Table 1. Example Inductors
VENDOR/PART
L
(μH)
DCR (Ω)/
IMAX (mA)
DIMENSIONS
(mm)
CONTACT
INFORMATION
Chip Inductors
Murata
LQH31C
LQH32C-Low Prole
22
3/160
0.7/250
3.2
× 1.6 × 1.8
3.2
× 2.5 × 1.6
www.murata.com
Taiyo Yuden
LB2016
15
22
33
0.7/130
1/105
1.7/85
2.0
× 1.6 × 1.6
www.t-yuden.com
(408) 573-4150
Toko
LLB2520
15
22
33
1.7/180
2.5/160
3.8/130
2.5
× 2.0 × 1.6
www.tokoam.com
(847) 297-0070
Coilcraft
DO3314
DO1606T
15
22
15
22
33
0.86/650
1.2/500
0.4/700
0.5/500
0.74/450
3.3
× 3.3 × 1.4
6.5
× 5.3 × 2.0
www.coilcraft.com
(847) 639-6400
Sumida
CMD4D06
CDRJ2D1BLD
15
22
33
15
22
33
0.5/400
0.8/300
1.3/240
0.175/350
0.255/300
0.37/240
6.6
× 5.8 × 0.8
3.2
× 3.2 × 2.0
www.sumida.com
(847) 956-0666
APPLICATIONS INFORMATION
Figure 4. Recommended Component
Placement for a Single-Layer Board
This is accomplished by varying the tOFF period by ap-
proximately 1/(VOUT – VIN). Due to propagation delays
and a 0.6μA bias current in the timer, the tOFF time can be
more accurately predicted as follows:
tns
pF
V
A
VV
k
OFF
OUT
IN
≈+
μ+
100
08
125
06
500
. .
.
–
If VOUT is less than VIN, the tOFF delay is xed at approxi-
mately 750ns.
Capacitor Selection
The boost converter requires two capacitors. The input
capacitor should be an X5R type of at least 1.0μF. The VOUT
capacitor should also be an X5R type between 2.2μF and
10μF. A larger capacitor should be used if lower peak-to-
peak output ripple and better line regulation is desired.
Table 2. Capacitor Vendor Information
SUPPLIER
PHONE
WEBSITE
AVX
(803) 448-9411
www.avxcorp.com
Murata
(714) 852-2001
www.murata.com
Taiyo Yuden
(408) 573-4150
www.t-yuden.com
TDK
(847) 803-6100
www.component.tdk.com
PCB Layout Guidelines
The high speed operation of the LTC3459 demands care-
ful attention to board layout. You will not get advertised
performance with a careless layout. Figure 4 shows the
recommended component placement for the TSOT ver-
sion of the part. A large ground pin copper area will help
to lower the chip temperature.
SW
GND
FB
1
2
3
6
5
4
VIN
VOUT
SHDN
3459 F04
VOUT
VIN
RECOMMENDED COMPONENT
PLACEMENT. TRACES CARRYING
CURRENT ARE DIRECT. TRACE
AREA AT FB PIN IS SMALL. LEAD
LENGTH TO BATTERY IS SHORT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC3520IUF#TRPBF | DUAL SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3520IUF#PBF | DUAL SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3539EDCB#PBF | 2.6 A SWITCHING REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3541EDD#TR | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
| LTC3541EDD | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3459ES6TRMPBF | 制造商:Linear Technology 功能描述:LTC3459 adj 75mA sync SU dc-dc converter |
| LTC3459ES6-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3464 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.2MHz Step-Up DC/DC Converter in SOT-23 |
| LTC3490 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Cell 350mA LED Driver |
| LTC3490EDD | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Cell 350mA LED Driver |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。