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參數資料
| 型號： | LT3692EUH#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32 |
| 文件頁數： | 1/36頁 |
| 文件大小： | 526K |
| 代理商： | LT3692EUH#TRPBF |
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LT3692
1
3692f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Monolithic Dual Tracking
3.5A Step-Down
Switching Regulator
The LT3692 is a dual current mode PWM step-down
DC/DCconverterwithtwointernal3.8Aswitches.Indepen-
dentinputvoltage,shutdown,feedback,soft-start,current
limit and comparator pins for each channel simplify com-
plex power supply tracking and sequencing requirements.
To optimize efficiency and component size, both convert-
ers have a programmable maximum current limit and are
synchronized to either a common external clock input,
or a resistor settable fixed 250kHz to 2.25MHz internal
oscillator. A frequency divider is provided for channel 1
to further optimize component size. At all frequencies, a
180° phase relationship between channels is maintained,
reducingvoltagerippleandcomponentsize.Aclockoutput
is available for synchronizing multiple regulators.
Minimum input to output voltage ratios are improved by
allowingtheswitchtostayonthroughmultipleclockcycles
onlyswitchingoffwhentheboostcapacitorneedsrecharg-
ing. Independent channel operation can be programmed
using the SHDN pin. Disabling both converters reduces
the total quiescent to <10A.
Dual 1.8V/3.5A and 5V/3.5A Step-Down Converter
n
Wide Input Range:
– Operation from 3V to 36V
– OVLO Protects Circuit Through 60V Transients
n
Independent Supply, Shutdown, Soft-Start,
Programmable Current Limit and Programmable
Power Good for Each 3.5A Regulator
n
Die Temperature Monitor
n
Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 2.25MHz with
Synchronized Clock Output
n
Independent Synchronized Switching Frequencies
Optimize Component Size
n
Antiphase Switching
n
Outputs Can Be Paralleled
n
Flexible Output Voltage Tracking
n
Enhanced Short-Circuit Protection
n
Low Dropout: 95% Maximum Duty Cycle
n
5mm
× 5mm QFN Package
n
Automotive Supplies
n
Distributed Supply Regulation
BST1
SW1
VOUT2
VOUT1
CMPI1
CMPO1
SS1
ILIM1
VC1
RT/SYNC
DIV
FB1
IND1
SW2
VOUT2
CMPI2
CMPO2
SS2
ILIM2
SS2
ILIM2
VC2
CLKOUT
TJ
FB2
IND2
0.47F
4.7F
×2
100F
×2
680pF
33pF
8.06k
13.0k
17.8k
60.4k
47pF
0.1F
3692 TA01a
36.5k
CLOCKOUT
500kHz
0.1F
330pF
60.4k
VIN
6V TO 32V
VOUT1
1.8V 3.5A
500kHz/
250kHz
6.8H
BST2
SHDN1
SHDN2
VIN1
LT3692
GND
VIN2
47F
1F
42.2k
100k
PG2
10k
143k
7.15k
VOUT2
5V 3.5A
500kHz
6.8H
Independent Synchronized Switching Frequencies
Extend Full Frequency Input Range
CLKOUT
SW1
SW2
1s/DIV
VIN = 12V
3692 TA01b
CLKOUT
SW1
SW2
1s/DIV
VIN = 24V
3692 TA01c
L
, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT3692IUH#PBF | 功能描述:IC REG BUCK ADJ 3.5A DL 32QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數:1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 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 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3692IUH#TRPBF | 功能描述:IC REG BUCK ADJ 3.5A DL 32QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數:1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 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 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3692IUHPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic Dual Tracking 3.5A Step-Down Switching Regulator |
| LT3693 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic Dual Tracking |
| LT36931DD#PBF | 制造商:Linear Technology 功能描述: |
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