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| 型号： | LT3695EMSE-3.3#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 16/30页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 3.3V 1A 16MSOP |
| 标准包装： | 37 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 3.6 V ~ 36 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 250kHz ~ 2.2MHz |
| 电流 - 输出： | 1A |
| 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： | 16-TFSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-MSOP，裸露焊盘 |
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LT3695 Series
APPLICATIONS INFORMATION
Table 3. Capacitor Vendors
VENDOR
Panasonic
Kemet
Sanyo
Murata
AVX
Taiyo Yuden
PHONE
(714) 373-7366
(864) 963-6300
(408) 749-9714
(408) 436-1300
(864) 963-6300
URL
www.panasonic.com
www.kemet.com
www.sanyovideo.com
www.murata.com
www.avxcorp.com
www.taiyo-yuden.com
PART SERIES
Ceramic, Polymer, Tantalum
Ceramic, Tantalum
Ceramic, Polymer, Tantalum
Ceramic
Ceramic, Tantalum
Ceramic
COMMANDS
EEF Series
T494, T495
POSCAP
TPS Series
Low ESR is important, so choose one that is intended for
Table 4. Schottky Diodes
use in switching regulators. The ESR should be speci?ed
by the supplier, and should be 0.05Ω or less. Such a
capacitor will be larger than a ceramic capacitor and will
have a larger capacitance, because the capacitor must be
large to achieve low ESR. Table 3 lists several capacitor
vendors.
Diode Selection
The catch diode (D1 from Block Diagram) conducts cur-
rent only during switch off time. Average forward current
in normal operation can be calculated from:
I D(AVG) = I OUT ? (1 – DC)
where DC is the duty cycle. The only reason to consider a
diode with larger current rating than necessary for nominal
operation is for the case of shorted or overloaded output
conditions. For the worst case of shorted output the diode
average current will then increase to a value that depends
on the following internal parameters: switch current limit,
PART NUMBER
On-Semiconducor
MBR0520L
MBR0540
MBRM120E
MBRM140
Diodes Inc.
B0530W
B0540W
B120
B130
B140
B220
B230
B140HB
DFLS240L
DFLS140
B240
V R (V)
20
40
20
40
30
40
20
30
40
20
30
40
40
40
40
I AVE (A)
0.5
0.5
1
1
0.5
0.5
1
1
1
2
2
1
2
1.1
2
V F at 1A (mV)
620
530
550
620
500
500
500
530
510
V F at 2A (mV)
595
500
500
500
500
catch diode (DA pin) current threshold and minimum
Central Semiconductor
I D ( AVG ) MAX = 2 A + ? ? 150 ns
on-time. The worst case (taking maximum values for the
above mentioned parameters) is given by the following
expression:
1 V IN
2 L
CMSH1-40M
CMSH1-40ML
CMSH2-40M
CMSH2-40L
CMSH2-40
40
40
40
40
40
1
1
2
2
2
500
400
550
400
500
Peak reverse voltage is equal to the regulator input voltage
if it is below the overvoltage protection threshold. This
feature keeps the switch off for V IN > V OVLO (39.9V maxi-
mum). For inputs up to the maximum operating voltage
of 36V, use a diode with a reverse voltage rating greater
than the input voltage. If transients at the input of up to
60V are expected, use a diode with a reverse voltage rat-
ing of 40V. Table 4 lists several Schottky diodes and their
manufacturers. If operating at high ambient temperatures,
consider using a Schottky with low reverse leakage.
3695fa
16
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| 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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