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| 型号： | LT3695EMSE-3.3#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING REGULATOR, 2420 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | LEAD FREE, PLASTIC, MSOP-16 |
| 文件页数： | 1/30页 |
| 文件大小： | 491K |
| 代理商： | LT3695EMSE-3.3#TRPBF |
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LT3695 Series
1
3695fa
TYPICAL APPLICATION
DESCRIPTION
1A Fault Tolerant Micropower
Step-Down Regulator
The LT3695 series are adjustable frequency (250kHz to
2.2MHz) monolithic buck switching regulators that accept
input voltages up to 36V and can safely sustain transient
voltages up to 60V. The devices include a high efciency
switch, a boost diode, and the necessary oscillator, control
and logic circuitry. Current mode topology is used for fast
transient response and good loop stability. A SYNC pin
allows the user to synchronize the part to an external clock,
and to choose between low ripple Burst Mode operation
and standard PWM operation.
The LT3695 regulators tolerate adjacent pin shorts or
an open pin without raising the output voltage above its
programmed value.
Low ripple Burst Mode operation maintains high ef-
ciency at low output currents while keeping output ripple
below 15mV in a typical application. Shutdown reduces
input supply current to less than 1μA while a resistor and
capacitor on the RUN/SS pin provide a controlled output
voltage ramp (soft-start). Protection circuitry senses the
current in the power switch and external Schottky catch
diode to protect the LT3695 regulators against short-circuit
conditions. Frequency foldback and thermal shutdown
provide additional protection.
The LT3695 series is available in a thermally enhanced
16-pin MSOP package.
5V Step-Down Converter
FEATURES
APPLICATIONS
n
Wide Input Range:
Operation from 3.6V to 36V
Overvoltage Lockout Protects Circuits Through
60V Transients
n
FMEA Fault Tolerant:
Output Stays at or Below Regulation Voltage
During Adjacent Pin Short or When a Pin Is Left
Floating
n
1A Output Current
n
Low Ripple (< 15mVP-P) Burst Mode Operation
IQ = 75μA for 12VIN to 3.3VOUT with No Load
n
Adjustable Switching Frequency: 250kHz to 2.2MHz
n
Short-Circuit Protected
n
Synchronizable Between 300kHz and 2.2MHz
n
Output Voltage: 0.8V to 20V
n
Power Good Flag
n
Fixed Output Voltage Versions for 3.3V and 5V Available
n
Small, Thermally Enhanced 16-Pin MSOP Package
n
Automotive Battery Regulation
n
Automotive Entertainment Systems
n
Distributed Supply Regulation
n
Industrial Supplies
Efciency
VIN
BD
LT3695
RUN/SS
VC
0.22μF
VOUT
5V
0.9A, VIN > 6.9V
1A, VIN > 12V
102k
f = 800kHz
536k
10μH
10μF
3695 TA01a
470pF
2.2μF
VIN
6.9V TO 36V
TRANSIENT TO 60V
RT
PG
40.2k
16.2k
SYNC
BOOST
ON OFF
SW
DA
FB
GND
PGND
LOAD CURRENT (A)
0
50
EFFICIENCY
(%)
60
70
80
90
100
0.2
0.4
0.6
0.8
1
VOUT = 5V
VOUT = 3.3V
VIN = 12V
L = 10μH
f = 800kHz
3695 TA01b
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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PDF描述 |
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| LT3751IUFD#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| LT3751EFE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20 |
| LT3751EUFD#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| LT3751EUFD | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3695EMSE-5#PBF | 功能描述:IC REG BUCK 5V 1A 16MSOP 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 |
| LT3695EMSE-5#PBF | 制造商:Linear Technology 功能描述:IC STEP-DOWN REGULATOR MSOP-16 |
| LT3695EMSE-5#TRPBF | 功能描述:IC REG BUCK 5V 1A 16MSOP 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:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3695EMSEPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1A Fault Tolerant Micropower Step-Down Regulator |
| LT3695EMSETRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1A Fault Tolerant Micropower Step-Down Regulator |
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