參數(shù)資料
型號(hào): ADP3307ART-33
廠商: Analog Devices, Inc.
英文描述: High Accuracy anyCAP⑩ 100 mA Low Dropout Linear Regulator
中文描述: 高精度anyCAP⑩一○○毫安低壓差線性穩(wěn)壓器
文件頁數(shù): 8/8頁
文件大?。?/td> 156K
代理商: ADP3307ART-33
ADP3307
–8–
REV. 0
OUT LINE DIME NSIONS
Dimensions shown in inches and (mm).
C
P
+
V
IN
= 2.5V TO 3.5V
C1
100
F
10V
L1
6.8
m
H
D1
1N5817
C2
100
m
F
10V
I
LIM
V
IN
SW1
SW2
GND
FB
ADP3000-ADJ
R1
120
V
R2
30.1k
V
1%
Q1
2N3906
ADP3307-3.3
IN
OUT
GND
SD
R3
124k
V
1%
R4
274k
V
Q2
2N3906
C3
2.2
m
F
3.3V@100mA
Figure 24. Constant Dropout Post Regulator
6-Lead Plastic Surface Mount
(RT -6)
0.122 (3.10)
0.106 (2.70)
PIN 1
0.071 (1.80)
0.059 (1.50)
0.118 (3.00)
0.098 (2.50)
0.075 (1.90)
BSC
0.037 (0.95) BSC
1
3
4
5
6
2
0.009 (0.23)
0.003 (0.08)
0.022 (0.55)
0.014 (0.35)
10
°
0
°
0.020 (0.50)
0.010 (0.25)
0.059 (0.15)
0.000 (0.00)
0.051 (1.30)
0.035 (0.90)
SEATING
PLANE
0.057 (1.45)
0.035 (0.90)
Constant Dropout Post Regulator
T he circuit in Figure 24 provides high precision with low drop-
out for any regulated output voltage. It significantly reduces the
ripple from a switching regulator while providing a constant
dropout voltage, which limits the power dissipation of the LDO
to 30 mW. T he ADP3000 used in this circuit is a switching
regulator in the step-up configuration.
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