參數(shù)資料
型號: TPS74812DRCR
廠商: Texas Instruments, Inc.
英文描述: 1.5A LDO Linear Regulator with Programmable Soft-Start
中文描述: 1.5A的LDO線性穩(wěn)壓器,具有可編程軟啟動
文件頁數(shù): 8/19頁
文件大?。?/td> 351K
代理商: TPS74812DRCR
www.ti.com
100mV/div
100mV/div
1V/div
Time (50 s/div)
C
= 2.2 F (Ceramic)
OUT
C
= 10 F (Ceramic)
OUT
5.0V
1V/ s
m
3.3V
C
= 1nF
SS
100mV/div
1V/div
Time (50 s/div)
C
= 10 F (Ceramic)
OUT
3.8V
1V/ s
m
1.8V
C
= 1nF
SS
100mV/div
100mV/div
1A/div
100mV/div
Time (50 s/div)
C
= 2.2 F (Ceramic)
OUT
C
= 10 F (Ceramic)
OUT
1A/ s
m
50mA
C
= 470 F (OSCON)
m
OUT
C
= 1nF
SS
0.5V/div
V
OUT
V
EN
1V/div
Time (1ms/div)
C
SS
= 2.2nF
C
SS
= 1nF
C
SS
= 0nF
3.8V
1.8V
1
Time (20ms/div)
V
(500mV/div)
PG
V
OUT
V
= V
= V
IN
BIAS
EN
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
I
(
B
I
(A)
OUT
1.6
+125 C
°
+25 C
°
-
°
40 C
TPS74801
SBVS074–JANUARY 2007
TYPICAL CHARACTERISTICS (continued)
At T
= +25
°
C, V
= V
OUT(TYP)
+ 0.3V, V
BIAS
= 5V, I
OUT
= 50mA, V
EN
= V
IN
, C
IN
= 1
μ
F, C
BIAS
= 4.7
μ
F, and C
OUT
= 10
μ
F,
unless otherwise noted.
V
BIAS
LINE TRANSIENT (1A)
V
IN
LINE TRANSIENT
Figure 15.
Figure 16.
OUTPUT LOAD TRANSIENT RESPONSE
TURN-ON RESPONSE
Figure 17.
Figure 18.
BIAS PIN CURRENT vs
I
OUT
AND TEMPERATURE (T
J
)
POWER-UP/POWER-DOWN
Figure 19.
Figure 20.
8
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