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参数资料
| 型号： | MC33702 |
| 厂商： | 飞思卡尔半导体(中国)有限公司 |
| 英文描述： | 3.0 A Switch-Mode Power Supply with Linear Regulator(3.0 A开关方式电源，带线性稳压器) |
| 中文描述： | 3.0开关模式电源，线性稳压器（3.0甲开关方式电源，带线性稳压器） |
| 文件页数： | 7/24页 |
| 文件大小： | 841K |
| 代理商： | MC33702 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33702
7
ERROR AMPLIFIER (BUCK CONVERTER)
Input Impedance
(Note 7)
R
IN
–
500
–
k
Output Impedance
(Note 7)
R
OUT
–
150
–
DC Open Loop Gain
(Note 7)
A
VOL
–
80
–
dB
Gain Bandwidth Product
(Note 7)
GBW
–
35
–
MHz
Slew Rate
(Note 7)
SR
–
200
–
V/
μ
s
Output Voltage Swing – High Level
V
IN1
> 3.3 V, I
OEA
= -1.0 mA
(Note 7)
V
EA_OH
–
2.0
–
V
Output Voltage Swing – Low Level
I
OEA
= -1.0 mA
(Note 7)
V
EA_OL
–
0.4
–
V
Slope Compensation Ramp
(Note 7)
V
SCRamp
–
0.6
–
V
OSCILLATOR
Oscillator Low Level Output Voltage (Pin CLKSYN), CLKSEL Open
V
OSC_OL
–
–
0.4
V
Oscillator High Level Output Voltage (Pin CLKSYN), CLKSEL Open
V
OSC_OH
3.0
–
–
V
Oscillator Input Voltage Threshold (Pin CLKSYN), CLKSEL Grounded
V
OSC_IH
1.2
1.6
2.0
V
Oscillator Frequency Adjusting Reference Voltage (FREQ)
V
FREQ
–
1.29
–
V
Oscillator Frequency Adjusting Resistor Range
R
FREQ
100
–
200
k
BOOST REGULATOR
Boost Regulator Output Voltage
I
BST
= 20 mA, V
IN1
= V
IN2
= 2.8 V to 6.0 V
V
BST
7.5
8.0
8.5
V
Boost Regulator Start-Up Voltage
V
IN_BSU
–
1.6
1.8
V
Boost Regulator Peak Current Limit (Power FET Peak Current)
I
P_BD
0.75
1.0
1.5
A
Boost Regulator Power FET Valley Current Limit (Low Level)
I
L_BD
450
600
800
mA
Boost Power FET R
DS(ON)
I
BD
= 1.0 A, T
A
= 25°C
R
DS(ON)
–
150
400
m
Boost Regulator Recommended Output Capacitor
C
BST
–
10
–
μ
F
Boost Regulator Recommended Output Capacitor Maximum ESR
ESR
CBST
–
100
–
m
Notes
7.
Design information only. It is not production tested.
STATIC ELECTRICAL CHARACTERISTICS (continued)
Characteristics noted under conditions -40°C
≤
T
J
≤
125
°
C unless otherwise noted. Input voltages V
IN1
= V
IN2
= 3.3 V using the typical
application circuit (see
Figure 20
) unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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