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| 型号： | LTC3803MPS6-5#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK PWM TSOT23-6 |
| 标准包装： | 500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 230kHz |
| 占空比： | 90% |
| 电源电压： | 4 V ~ 8.1 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -55°C ~ 150°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 相关产品： | 732-2263-6-ND - TRANS FLYBACK LTC3803 16.9UH 732-2263-1-ND - TRANS FLYBACK LTC3803 16.9UH 732-2263-2-ND - TRANS FLYBACK LTC3803 16.9UH |
LTC3803-5
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3803-5 is tested under pulsed load conditions such
that T J ≈ T A . The LTC3803E-5 is guaranteed to meet speci?cations
from 0°C to 85°C junction temperature. Speci?cations over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3803I-5 is guaranteed over the –40°C to 125°C operating junction
temperature range, the LTC3803H-5 is guaranteed over the –40°C to
150°C operating junction temperature range and the LTC3803MP-5 is
tested and guaranteed over the full –55°C to 150°C operating junction
temperature range. Note that the maximum ambient temperature
consistent with these speci?cations is determined by speci?c operating
conditions in conjunction with board layout, the rated package thermal
impedance and other environmental factors.
Junction temperature (T J ) is calculated from the ambient temperature T A
and the power dissipation P D in the LTC3803-5 using the formula:
T J = T A + (P D ? 230°C/W)
Note 3: High junction temperatures degrade operating lifetimes; operating
lifetime is derated for junction temperatures greater than 125°C.
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: The LTC3803-5 is tested in a feedback loop that servos V FB to the
output of the error ampli?er while maintaining I TH /RUN at the midpoint of
the current limit range.
Note 6: Peak current sense voltage is reduced dependent on duty cycle
and an optional external resistor in series with the SENSE pin (R SL ). For
details, refer to the programmable slope compensation feature in the
Applications Information section.
Note 7: Guaranteed by design.
TYPICAL PERFORMANCE CHARACTERISTICS
Reference Voltage
Reference Voltage
Reference Voltage vs Temperature
vs Supply Voltage
vs V CC Shunt Regulator Current
820
815
V CC = 5V
812
808
T A = 25°C
V CC ≤ V CLAMP1mA
812
808
T A = 25°C
810
805
800
795
790
785
804
800
796
792
804
800
796
792
780
–60
–30
0
30
60 90
120
150
788
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
788
0
5
10
15
20
25
TEMPERATURE (°C)
Oscillator Frequency
vs Temperature
38035 G01
V CC SUPPLY VOLTAGE (V)
Oscillator Frequency
vs Supply Voltage
38035 G02
I CC (mA)
38035 G03
Oscillator Frequency
vs V CC Shunt Regulator Current
240
V CC = 5V
220
T A = 25°C
220
T A = 25°C
230
220
210
200
190
215
210
205
200
195
190
185
215
210
205
200
195
190
185
180
–60 –30
0 30
60
90
120
150
180
4.0
4.5
5.0
5.5 6.0
6.5 7.0
7.5
180
0
5
10
15
20
25
TEMPERATURE (°C)
38035 G04
V CC SUPPLY VOLTAGE (V)
38035 G05
I CC (mA)
38035 G06
38035fd
4
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相关代理商/技术参数 |
参数描述 |
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| LTC3805EDD#PBF | 功能描述:IC REG CTRLR BST FLYBK PWM 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
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| LTC3805EDD-5#PBF | 功能描述:IC REG CTRLR BST FLYBK PWM 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3805EDD-5#PBF | 制造商:Linear Technology 功能描述:IC, FLYBACK/ BOOST/SEPIC CTRL, DFN-10 |
| LTC3805EDD-5#TRPBF | 功能描述:IC REG CTRLR BST FLYBK PWM 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
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