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參數(shù)資料
| 型號(hào)： | CS51313GDR16 |
| 廠商： | ZF Electronics Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Micropower 5V, 100mA Low Dropout Linear Regulator |
| 中文描述： | 微5V的，100mA的低壓差線性穩(wěn)壓器 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 248K |
| 代理商： | CS51313GDR16 |
Typical Performance Characteristics
150
125
100
75
50
25
0
0
2000
4000
6000
Load Capacitance (pF)
8000
10000
12000
14000
16000
F
V
CC
= 12V
T
A
= 25
°
C
0.10
0.05
0
0.05
0.10
0.15
0.20
1.325 1.375 1.425 1.475 1.525 1.575 1.625 1.675 1.725 1.775 1.825 1.875 1.925 1.975 2.025 2.075
DAC Output Voltage Setting (V)
O
V
CC
= 12V
T
A
= 25
°
C
V
ID4
= 0
Figure 4: Percent Output Error vs. DAC Output
Voltage Setting, V
ID4
= 0.
Figure 1: Gate(H) and Gate(L) Falltime vs. Load Capacitance.
150
125
100
75
50
25
0
0
2000
4000
6000
Load Capacitance (pF)
8000
10000
12000
14000
16000
R
V
CC
= 12V
T
A
= 25
°
C
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0.05
0.10
0.15
0.20
0.25
O
2.125 2.225 2.325 2.425 2.525 2.625 2.725 2.825 2.925 3.025 3.125 3.225 3.335 3.425 3.525
DAC Output Voltage Setting (V)
V
CC
= 12V
T
A
= 25
°
C
V
ID4
= 1
Figure 2: Gate(H) and Gate(L) Risetime vs. Load Capacitance.
C
6
Application Information
V
2
TM
Control Method
The V
2
TM
method of control uses a ramp signal that is gen-
erated by the ESR of the output capacitors. This ramp is
proportional to the AC current through the main inductor
and is offset by the value of the DC output voltage. This
control scheme inherently compensates for variation in
either line or load conditions, since the ramp signal is gen-
erated from the output voltage itself. This control scheme
differs from traditional techniques such as voltage mode,
which generates an artificial ramp, and current mode,
which generates a ramp from inductor current.
Figure 6: V
2
TM
Control Diagram
Reference
Voltage
+
C
–
E
+
–
Ramp Signal
Output
V
FB
Error
Signal
GATE(H)
GATE(L)
Error
Amplifier
COMP
PWM
Comparator
Theory Of Operation
0.10
0.05
0
0.05
0.10
0.15
0
20
40
60
80
100
120
Junction Temperature (
°
C)
D
D
V
CC
= 12V
Figure 3: DAC Output Voltage vs. Temperature,
DAC Code = 00001.
Figure 5: Percent Output Error vs. DAC Output
Voltage Setting, V
ID4
= 1.
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