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參數(shù)資料
| 型號： | LTC3413 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 3A, 2MHz Monolithic Synchronous Regulator for DDR/QDR Memory Termination |
| 中文描述： | 第3A，2MHz的單片同步調(diào)節(jié)器用于DDR / QDR存儲器終端 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 243K |
| 代理商： | LTC3413 |
1
LTC3413
sn3413 3413fs
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIOU
3A, 2MHz Monolithic
Synchronous Regulator for
DDR/QDR Memory Termination
I
High Efficiency: Up to 90%
I
±
3A Output Current
I
Symmetrical Source and Sink Output Current Limit
I
Low R
DS(ON)
Internal Switch: 85m
I
No Schottky Diode Required
I
2.25V to 5.5V Input Voltage Range
I
V
OUT
= V
REF
/2
I
±
1% Output Voltage Accuracy
I
Programmable Switching Frequency: Up to 2MHz
I
Power Good Output Voltage Monitor
I
Overtemperature Protected
I
Available in 16-Lead TSSOP Exposed Pad Package
The LTC
3413 is a high efficiency monolithic synchro-
nous step-down DC/DC converter utilizing a constant
frequency, current mode architecture. It operates from an
input voltage range of 2.25V to 5.5V and provides a
regulated output voltage equal to (0.5)V
REF
while sourcing
or sinking up to 3A of output current. An internal voltage
divider reduces component count and eliminates the need
for external resistors by dividing the reference voltage in
half. The internal synchronous power switch with 85m
on-resistance increases efficiency and eliminates the need
for an external Schottky diode. Switching frequencies up
to 2MHz are set by an external resistor.
Forced-continuous operation in the LTC3413 reduces
noise and RF interference. Fault protection is provided by
an overcurrent comparator that limits output current dur-
ing both sourcing and sinking operations. Adjustable
compensation allows the transient response to be opti-
mized over a wide range of loads and output capacitors.
I
Bus Termination: DDR and QDR
TM
Memory,
SSTL, HSTL, ...
I
Notebook Computers
I
Distributed Power Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
QDR RAMs and Quad Data Rate RAMs comprise a new family of products developed by Cypress
Semiconductor, Hitachi, IDT, Micron Technology, Inc. and Samsung.
Figure 1a. High Efficiency Bus Termination Supply
Figure 1b. Efficiency vs Load Current
PV
IN
PGOOD
SV
IN
SW
V
REF
22
μ
F
4.7M
309k
L1: VISHAY DALE IHLP-2525CZ-01 0.47
C
OUT
: TDK C4532X5R0J107M
V
IN
2.5V
C
OUT
100
μ
F
×
2
3413 F01a
V
1.25V
±
3A
L1
0.47
μ
H
LTC3413
PGND
SGND
RUN/SS
I
TH
R
T
V
FB
330pF
2200pF
5.11k
LOAD CURRENT (A)
0.01
40
E
50
60
70
80
0.1
1
10
3413 F01b
30
20
10
0
90
100
V
= 2.5V
f = 1MHz
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| LTC3413EFE | 3A, 2MHz Monolithic Synchronous Regulator for DDR/QDR Memory Termination |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3413EFE | 功能描述:IC REG BUCK SYNC ADJ 3A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3413EFE#PBF | 功能描述:IC REG BUCK SYNC ADJ 3A 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC3413EFE#TR | 功能描述:IC REG BUCK SYNC ADJ 3A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3413EFE#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 3A 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3413EFEPBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:3A 2MHz Reg. for DDR Termination TSSOP16 |
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