参数资料
型号: LT6654BHS6-2.5#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 基准电压源/电流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO6
封装: 1 MM HEIGHT, LEAD FREE, PLASTIC, MO-193, TSOT-23, 6 PIN
文件页数: 10/12页
文件大小: 331K
代理商: LT6654BHS6-2.5#TRPBF
LT6654
7
6654f
Bypass and Load Capacitors
The LT6654 voltage references should have an input by-
pass capacitor of 0.1μF or larger, however the bypassing
on other components nearby may be sufcient. These
references also require an output capacitor for stability.
The optimum output capacitance for most applications
is 1μF, although larger values work as well. This capaci-
tor affects the turn-on and settling time for the output to
reach its nal value.
APPLICATIONS INFORMATION
Figure 1 shows the turn-on time for the LT6654-2.5 with a
0.1μF input bypass and 1μF load capacitor. Figure 2 shows
the output response to a 0.5V transient on VIN with the
same capacitors.
The test circuit of Figure 3 is used to measure the stability
with various load currents. With RL = 1k, the 1V step pro-
duces a current step of 1mA. Figure 4 shows the response
to a ± 0.5mA load. Figure 5 is the output response to a
sourcing step from 4mA to 5mA, and Figure 6 is the output
response of a sinking step from 4mA to 5mA.
Figure 1. Turn-On Characteristics of LT6654-2.5
LT6654-2.5
CIN
0.1μF
VIN
3V
46
1, 2
CL
1μF
VGEN
1k
6654 F03
1V
Figure 4. LT6654-2.5 Sourcing and Sinking 0.5mA
Figure 2. Output Response to 0.5V Ripple on VIN
Figure 5. LT6654-2.5 Sourcing 4mA to 5mA
Figure 3. Response Time Test Circuit
Figure 6. LT6654-2.5 Sinking 4mA to 5mA
TIME (20μs/DIV)
VOUT
VIN
2.5V
3V
6654 F01
TIME (50μs/DIV)
AC-
COUPLED
VIN
2.5V
3.5V
3V
6654 F02
–0.5mA
2.5V
SINKING
0.5mA
SOURCING
6654 F04
2.5V
4mA
5mA
6654 F05
2.5V
–4mA
–5mA
6654 F06
相关PDF资料
PDF描述
LT6654AHS6-2.5#TRMPBF THREE TERM VOLTAGE REFERENCE, PDSO6
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