參數(shù)資料
型號: MC34701EK
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: 1.5 A Switch-Mode Power Supply with Linear Regulator
中文描述: 1.5開關(guān)模式電源,線性穩(wěn)壓器
文件頁數(shù): 8/38頁
文件大?。?/td> 739K
代理商: MC34701EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
8
34701
STATIC ELECTRICAL CHARACTERISTICS
Error Amplifier (Buck Converter)
Input Impedance
(10)
R
IN
500
k
Output Impedance
(10)
R
OUT
150
DC Open Loop Gain
(10)
A
VOL
80
dB
Gain Bandwidth Product
(10)
G
BW
35
MHz
Slew Rate
(10)
v
SR
200
V/
μ
s
Output Voltage – High Level
VIN1 > 3.3 V, IOEA = -1.0 mA
(10)
,
(11)
V
EA_OH
2.0
V
Output Voltage – Low Level
IOEA = -1.0 mA
(10)
,
(11)
V
EA_OL
0.4
V
Oscillator Ramp
(10)
V
SCRamp
0.5
V
Oscillator
CLKSYN Terminal (open) Low Level Output Voltage
IOL = +1.0 mA
(12)
V
OSC_OL
0.4
V
CLKSYN Terminal (open) High Level Output Voltage
IOH = -1.0 mA
(13)
V
OSC_OH
V
DDI
- 0.4 V
V
CLKSYN Terminal (grounded) Input Voltage Threshold
V
OSC_IH
1.2
2.0
V
CLKSYN Terminal Pullup Resistance
R
PU
60
240
k
Frequency Adjusting Reference Voltage
V
FREQ
1.26
V
Boost Regulator
Regulator Output Voltage
IBST = 20 mA, VIN1 = V
IN2
= 2.8 V to 6.0 V
V
BST
7.3
7.7
8.3
V
Power MOSFET Q5 RDS(ON)
(10)
IBD = 500 mA, T
A
= 25°C
R
DS(ON)Q5
650
1000
m
Regulator Recommended Output Capacitor
C
BST
10
μ
F
Regulator Recommended Output Capacitor Maximum ESR
ESRC
BST
100
m
Notes
10.
11.
12.
13.
Design information only. This parameter is not production tested.
IOEA Refers to Error Amplifier Output Current.
IOL Refers to I/O Low Level
IOH Refers to I/O High Level
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions -40°C
T
A
85
°
C unless otherwise noted. Input voltages VIN1 = VIN2
= 3.3 V using
the typical application circuit (see
Figure 33
) unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
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