參數(shù)資料
型號: LTC1929
廠商: Linear Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C
中文描述: 射頻放大器
文件頁數(shù): 28/28頁
文件大?。?/td> 311K
代理商: LTC1929
28
LTC1929/LTC1929-PG
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
1929f LT/TP 0500 4K PRINTED IN USA
TYPICAL APPLICATIO
U
RELATED PARTS
PART NUMBER
LTC1438/LTC1439
LTC1438-ADJ
LTC1538-AUX
LTC1539
LTC1435/LTC1435A
LTC1436A-PLL
LTC1628/LTC1628-PG
LTC1629/LTC1629-PG
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. 2V/20A CPU Power Supply with Active Voltage Positioning
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RUN/SS
SENSE1
+
SENSE1
EAIN
PLLFLTR
PLLIN
NC
I
TH
SGND
V
DIFFOUT
V
OS
V
OS
+
SENSE2
SENSE2
+
NC
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
PGOOD
1000pF
0.22
μ
F
LTC1929-PG
M1
M2
D1
MBRS140T3
D2
MBRS140T3
V
5V TO 28V
V
OUT
2V
20A
SWITCHING FREQUENCY = 200kHz
C
IN
: 5A RIPPLE CURRENT RATING REQUIRED
C
: 4
×
180
μ
F/4V PANASONIC SP
L1 TO L2: 1.5
μ
H SUMIDA CEP125-1R5MC
M1 TO M4: FAIRCHILD FDS7760A
10
μ
F
0.1
μ
F
5V (OPT)
1000pF
100pF
3.3nF
INTV
CC
470pF
0.1
μ
F
47k
15k
10k
15k
10k
2.7k
51k
0.22
μ
F
PGOOD
100k
10
C
47
μ
F 35V
0.004
0.004
M3
L2
M4
1929 F13
C
OUT
+
+
L1
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PDF描述
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相關代理商/技術參數(shù)
參數(shù)描述
LTC1929CG 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:- 標準包裝: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#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:- 標準包裝: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:- 標準包裝: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:- 標準包裝: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:- 標準包裝: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