參數(shù)資料
型號: LTC1435ACS#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: High Efficiency Low Noise Synchronous Step-Down Switching Regulator
中文描述: 2 A SWITCHING CONTROLLER, 138 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 0.150 INCH, PLASTIC, SO-16
文件頁數(shù): 8/20頁
文件大?。?/td> 355K
代理商: LTC1435ACS#TRPBF
16
LTC1435A
APPLICATIONS INFORMATION
WU
U
4. Does the (+) plate of CIN connect to the drain of the
topside MOSFET(s) as closely as possible? This capaci-
tor provides the AC current to the MOSFET(s).
5. Is the INTVCC decoupling capacitor connected closely
betweenINTVCC and the power ground pin? This capaci-
tor carries the MOSFET driver peak currents.
6. Keep the switching node SW away from sensitive small-
signal nodes. Ideally the switch node should be placed
at the furthest point from the LTC1435A.
7. SGND should be exclusively used for grounding exter-
nal components on COSC, ITH, VOSENSE and SFB pins.
8. If operating close to the minimum on-time limit, is the
sense resistor oriented on the radial axis of the induc-
tor? See Figure 8.
COSC
TG
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1435A
100pF
1000pF
CC1
CC2
RC
COSC
CSS
+
4.7
F
DB
D1
CB
0.1
F
CIN
M1
M2
L1
R1
R2
RSENSE
+
VOUT
VIN
1435A F10
BOLD LINES INDICATE
HIGH CURRENT PATHS
+ COUT
+
RUN/SS
ITH
SFB
SGND
VOSENSE
SENSE
SENSE+
SW
VIN
INTVCC
BG
PGND
EXTVCC
BOOST
ITH
TG
1
2
3
5
6
10
11
15
12
14
16
13
78
COSC
43pF
CC
1000pF
CC2
220pF
50pF
RC
10k
CSS
0.1
F
SENSE
SENSE+
LTC1435A
1000pF
+
4.7
F
CF
0.1
F
DB
CMDSH-3
0.22
F
M2
Si4410
D1
MBRS140T3
L1
3.3
H
M1
Si4410
RSENSE
0.015
4.7
+
CIN
10
F
30V
× 2
VIN
4.5V TO 22V
+
COUT
820
F
4V
× 2
VOUT
1.3V TO 2.0V
7A
PGND
BG
COSC
VIN
VOSENSE
BOOST
1435A TA07
SGND
RUN/SS
SW
INTVCC
VID
0 1 2 3 GND
FROM
P
SENSE
LTC1706-19
FB
3
6
4
2
1
8
7
5
VCC
Intel Mobile CPU VID Power Converter
Figure 10. LTC1435A Layout Diagram
TYPICAL APPLICATIONS
U
相關(guān)PDF資料
PDF描述
LTC1435AIG#PBF High Efficiency Low Noise Synchronous Step-Down Switching Regulator
LTC1435AIS#PBF High Efficiency Low Noise Synchronous Step-Down Switching Regulator
LTC1435CG#PBF High Efficiency Low Noise Synchronous Step-Down Switching Regulator
LTC1435CS#PBF High Efficiency Low Noise Synchronous Step-Down Switching Regulator
LTC1435IS#PBF High Efficiency Low Noise Synchronous Step-Down Switching Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC1435AIG#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
LTC1435AIG#TR 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1435AIG#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1435AIGPBF 制造商:Linear Technology 功能描述:PWM Controller Current 1.19-9V 2A SSOP16