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參數(shù)資料
| 型號： | MP1531DQ |
| 廠商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low Power, Triple Output Step-Up Plus Charge Pump for TFT Bias |
| 中文描述： | 0.65 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, QCC16 |
| 封裝： | 3 X 3 MM, MO-220VEED-4, QFN-16 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 359K |
| 代理商： | MP1531DQ |
MP1531 – LOW POWER, TRIPLE OUTPUT STEP-UP PLUS CHARGE PUMP FOR TFT BIAS
MP1531 Rev. 1.2
5/22/2006
www.MonolithicPower.com
3
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
(4)
(continued)
V
IN
= 5.0V, T
A
= +25
°
C, unless otherwise noted.
Parameter
Oscillator
Switching Frequency
Maximum Duty Cycle
Soft-Start Period
Turn-Off Delay
Error Amplifier
Error Amplifier Voltage Gain
Error Amplifier Transconductance
COMP Maximum Output Current
FB1, FB3 Regulation Voltage
FB2 Regulation Voltage
FB1, FB3 Input Bias Current
FB2 Input Bias Current
Reference (REF)
REF Regulation Voltage
REF Load Regulation
Output Switch (SW)
Symbol Condition
Min
Typ
Max
Units
f
SW
D
M
C4 = 10nF
200
85
250
90
6
3
300
KHz
%
ms
μs
Av
EA
G
m
EA
V
FB1
= V
FB3
= 1.25V
V
FB2
= 0V
400
1000
±100
1.25
0
±100
±100
V/V
μA/V
μA
V
mV
nA
nA
1.22
–25
1.28
+25
I
REF
= 50μA
0μA < I
REF
< 200μA
1.22
1.25
1
1.28
1.2
V
%
V
IN
= 5V
V
IN
= 3V
V
SW
= 22V
V
GL
= –10V, I
GL
= 10mA
V
GH
= 20V, I
GH
= 10mA
V
IN2
= –15V, V
GL
= GND
V
IN3
= 25V, V
GH
= GND
250
400
0.65
0.5
160
m
m
A
μ
A
V
V
μ
A
μ
A
°
C
SW On Resistance
SW Current Limit
SW Leakage Current
GL Dropout Voltage
(5)
GH Dropout Voltage
(5)
GL Leakage Current
GH Leakage Current
Thermal Shutdown
Notes:
4) Typical values are guaranteed by design, not production tested.
5) Dropout voltage is the input to output differential at which the circuit ceases to regulate against further reduction in input voltage.
I
LIM
0.5
1
0.15
0.5
1
1
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit of Figure 3, unless otherwise noted.
100
90
80
70
60
50
40
30
20
E
0
100
200
300
400
500
600
LOAD CURRENT (mA)
Efficiency vs Load Current
Delivered by Step-Up Converter
V
IN
= 3.3V
V
MAIN
= 5V
V
IN
= 4.2V
Power-Up Sequencing
V
IN
= 3.3V, V
MAIN
= 5V, I
MAIN
= 100mA,
V
GH
= 15V, I
GH
= 5mA, V
GL
= -10V,
I
GL
= 5mA
I
50mA/div
V
50mV/div
V
5V/div
Load Transient
V
IN
= 3.3V, V
MAIN
= 5V,
5mA-50mA Step, V
GH
= 15V,
I
GH
= 5mA, V
GL
= -10V, I
GL
= 5mA
V
5V/div
V
10V/div
V
10V/div
10ms/div
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