参数资料
| 型号： | LT3692IUH#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 3.5A DL 32QFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 34.2 V |
| 输入电压： | 3.6 V ~ 36 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 110kHz ~ 2.5MHz |
| 电流 - 输出： | 3.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
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LT3692
Wide Input Range:
Independent Supply, Shutdown, Soft-Start,
Die Temperature Monitor
Adjustable/Synchronizable Fixed Frequency
Independent Synchronized Switching Frequencies
Antiphase Switching
Outputs Can Be Paralleled
Flexible Output Voltage Tracking
Enhanced Short-Circuit Protection
Low Dropout: 95% Maximum Duty Cycle
5mm × 5mm QFN Package
Automotive Supplies
Distributed Supply Regulation
FEATURES
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– Operation from 3V to 36V
– OVLO Protects Circuit Through 60V Transients
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Programmable Current Limit and Programmable
Power Good for Each 3.5A Regulator
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Operation from 250kHz to 2.25MHz with
Synchronized Clock Output
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Optimize Component Size
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APPLICATIONS
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TYPICAL APPLICATION
Dual 1.8V/3.5A and 5V/3.5A Step-Down Converter
Monolithic Dual Tracking
3.5A Step-Down
Switching Regulator
DESCRIPTION
The LT ? 3692 is a dual current mode PWM step-down
DC/DC converter with two internal 3.8A switches. Indepen-
dent input voltage, 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,
reducing voltage ripple and component size. A clock output
is available for synchronizing multiple regulators.
Minimum input to output voltage ratios are improved by
allowing the switch to stay on through multiple clock cycles
only switching off when the boost capacitor needs recharg-
ing. Independent channel operation can be programmed
using the SHDN pin. Disabling both converters reduces
the total quiescent to <10μA.
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.
Independent Synchronized Switching Frequencies
Extend Full Frequency Input Range
CLKOUT
V IN
6V TO 32V
4.7μF
× 2
V IN1
V IN2
SW1
SHDN1
BST1
SHDN2
BST2
V OUT2
V OUT1
1.8V 3.5A
500kHz/
250kHz
143k
0.47μF
100μF
× 2 8.06k
10k
6.8μH
IND1 IND2
LT3692
FB1 FB2
CMPI1 CMPI2
CMPO1 CMPO2
SW1 SW2
V OUT1 V OUT2
6.8μH
42.2k
8.06k
1μF
100k
PG2
V OUT2
5V 3.5A
47μF 500kHz
SW2
CLKOUT
V IN = 12V
1μs/DIV
3692 TA01b
7.15k
60.4k
60.4k
SS2
ILIM2
SS1
ILIM1
DIV
V C1
SS2
ILIM2
CLKOUT
V C2
CLOCKOUT
500kHz
60.4k
SW1
47pF
680pF
17.8k
13.0k
RT/SYNC
GND
T J
0.1μF
330pF
36.5k
33pF
0.1μF
SW2
1
3692 TA01a
For more information www.linear.com/3692
V IN = 24V
1μs/DIV
3692 TA01c
3692fa
相关PDF资料 |
PDF描述 |
|---|---|
| LT3693IMSE#TRPBF | IC REG BUCK ADJ 3.5A 10MSOP |
| LT3695HMSE-5#TRPBF | IC REG BUCK 5V 1A 16MSOP |
| LT3710EFE#TRPBF | IC REG CTRLR BUCK PWM 16-TSSOP |
| LT3724EFE#PBF | IC REG CTRLR BST INV PWM 16TSSOP |
| LT3740EDHC#PBF | IC REG CTRLR BUCK PWM CM 16-DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3693 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic Dual Tracking |
| LT36931DD#PBF | 制造商:Linear Technology 功能描述: |
| LT3693EDD#PBF | 功能描述:IC REG BUCK ADJ 3.5A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT3693EDD#TRPBF | 功能描述:IC REG BUCK ADJ 3.5A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT3693EDDPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 3.6-36V DFN10 |
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