參數(shù)資料
型號: LTC1929CG
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Isolated Flyback Switching Regulator with 9V Output
中文描述: 3 A DUAL SWITCHING CONTROLLER, 310 kHz SWITCHING FREQ-MAX, PDSO28
封裝: 0.209 INCH, PLASTIC, SSOP-28
文件頁數(shù): 24/24頁
文件大?。?/td> 233K
代理商: LTC1929CG
24
LTC1929
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
LINEAR TECHNOLOGY CORPORATION 1999
1929i LT/TP 0899 4K PRINTED IN USA
TYPICAL APPLICATIO
U
RELATED PARTS
PART NUMBER
LTC1438/LTC1439
LTC1438-ADJ
LTC1538-AUX
LTC1539
LTC1435/LTC1435A
LTC1436A-PLL
LTC1628
LTC1629
LTC1702/LTC1703
LTC1735
DESCRIPTION
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulators POR, Auxiliary Regulator
Dual Synchronous Controller with Auxiliary Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator
High Efficiency Synchronous Step-Down Switching Regulator
High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Dual High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
PolyPhase High Efficiency Controller
Dual High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
High Efficiency Synchronous Step-Down Controller
COMMENTS
POR, External Feedback Divider
Auxiliary Regulator, 5V Standby
5V Standby, POR, Low-Battery, Aux Regulator
Burst Mode
TM
Operation, 16-Pin Narrow SO
Adaptive Power
TM
Mode, 24-Pin SSOP
Constant Frequency, Standby, 5V and 3.3V LDOs
Expandable Up to 12 Phases, G-28, Up to 120A
500kHz, 25MHz GBW
Burst Mode Operation, 16-Pin Narrow SSOP,
Fault Protection, 3.5V
V
IN
36V
Output Fault Protection, Power Good, GN-24,
3.5V
V
IN
36V, 0.8V
V
OUT
6V
LTC1736
High Efficiency Synchronous Step-Down Controller with 5-Bit VID
Adaptive Power and Burst Mode are trademarks of Linear Technology Corporation.
Figure 13. 1.8V/20A CPU Power Supply
V
IN
: 5V TO 28V
V
OUT
: 1.8V/20A
SWITCHING FREQUENCY = 310kHz
MI – M4: FAIRCHILD FDS6680A
L1 – L2: 2
μ
H SUMIDA CEE125-2R1NC
C
OUT
: PANASONIC EEFUEOD271R
D3, D4: CENTRAL CMDSH-3TR
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NC
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
INTV
CC
TG2
AMPMD
RUN/SS
SENSE1
+
SENSE1
EAIN
PLLFLTR
PLLIN
NC
I
TH
SGND
V
DIFFOUT
V
OS–
V
OS+
SENSE2
SENSE2
+
LTC1929
M4
M3
0.1
μ
F
13.2k
10k
16.5k
1000pF
1000pF
220pF
100pF
33pF
22
μ
F
50V
GND
C
OUT
M2
M1
D1
MBRM
140T3
D2
MBRM
140T3
0.22
μ
F
4.7
μ
F
6.3V
+
0.1
μ
F
1
μ
F,25V
10
0.22
μ
F
D3
D4
2X270
μ
F
2V
V
5V TO
28V
V
1.8V/20A
+
L1
0.005
L2
0.005
1929 TA02
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1929CG#PBF 功能描述:IC REG CTRLR BUCK PWM CM 28-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:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP(0.173",4.40mm 寬) 包裝:帶卷 (TR)
LTC1929CG#TR 功能描述:IC REG CTRLR BUCK PWM CM 28-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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 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:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1929CG#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 28-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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 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:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1929CG-PG 功能描述:IC REG CTRLR BUCK PWM CM 28-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
LTC1929CG-PG#25123 制造商:Linear Technology 功能描述: