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参数资料
| 型号： | LTC3803MPS6#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件页数： | 11/16页 |
| 文件大小： | 164K |
| 代理商： | LTC3803MPS6#TR |
LTC3803
4
3803fc
TYPICAL PERFORMANCE CHARACTERISTICS
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs Supply Voltage
Oscillator Frequency
vs VCC Shunt Regulator Current
–60
60
90
0
–30
30
150
120
TEMPERATURE (°C)
OSCILLATOR
FREQUENCY
(kHz)
3803 G04
VCC = 8V
240
230
220
210
200
190
180
VCC SUPPLY VOLTAGE (V)
6
190
OSCILLATOR
FREQUENCY
(kHz)
194
198
202
6.5
7
7.5
8
3803 G05
8.5
206
210
192
196
200
204
208
9
TA = 25°C
ICC (mA)
0
190
OSCILLATOR
FREQUENCY
(kHz)
194
198
202
5
10
15
20
3803 G06
206
210
192
196
200
204
208
25
TA = 25°C
Reference Voltage vs Temperature
Reference Voltage
vs Supply Voltage
Reference Voltage
vs VCC Shunt Regulator Current
TEMPERATURE (°C)
–60
V
FB
VOLTAGE
(mV)
90
3803 G01
0
–30
30
60
150
120
VCC = 8V
780
785
790
795
800
805
810
815
820
VCC SUPPLY VOLTAGE (V)
6
799.0
V
FB
VOLTAGE
(mV)
799.2
799.6
799.8
800.0
801.0
800.4
7
8
8.5
3803 F02
799.4
800.6
800.8
800.2
6.5
7.5
9
9.5
TA = 25°C
VCC ≤ VCLAMP1mA
ICC (mA)
0
V
FB
VOLTAGE
(mV)
799
800
801
15
25
3803 G03
798
797
796
510
20
802
803
804
TA = 25°C
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 is tested under pulsed load conditions such that TJ ≈ TA.
The LTC3803E is guaranteed to meet specications from 0°C to 85°C
junction temperature. Specications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC3803I is guaranteed to
meet performance specications over the –40°C to 125°C operating junction
temperature range, the LTC3803H is guaranteed to meet performance
specications over the –40°C to 150°C operating junction temperature range
and the LTC3803MP is tested and guaranteed over the full –55°C to 150°C
operating junction temperature range. High junction temperatures degrade
operating lifetimes; operating lifetime is derated for junction temperatures
greater than 125°C. Note that the maximum ambient temperature consistent
with these specications is determined by specic operating conditions in
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
Note 3: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
TJ = TA + (PD 230°C/W).
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: The LTC3803 is tested in a feedback loop that servos VFB to the
output of the error amplier while maintaining ITH/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 (RSL). For
details, refer to the programmable slope compensation feature in the
Applications Information section.
Note 7: Guaranteed by design.
ELECTRICAL CHARACTERISTICS
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相关代理商/技术参数 |
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| LTC3805EDD#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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