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MAX20002CATPC 数据表(PDF) 4 Page - Maxim Integrated Products

部件名 MAX20002CATPC
功能描述  36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15關A Operating Current
PDF  19 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX20002CATPC 数据表(HTML) 4 Page - Maxim Integrated Products

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Electrical Characteristics (continued)
VSUP = VSUPSW = 14V, VEN = 14V, L1 = 2.2µH, CIN = 4.7µF, COUT = 44µF, CBIAS = 2.2µF, CBST = 0.1µF, RFOSC = 12kΩ, TA = TJ =
-40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
PWM-Mode Output Voltage
(Note 2)
VOUT_5V
VFB = VBIAS, 6V < VSUPSW < 36V,
fixed-frequency mode
4.9
5
5.1
V
VOUT_4.2V
4.12
4.2
4.28
VOUT_3.3V
3.23
3.3
3.37
Skip-Mode Output Voltage
(Note 3)
VOUT_
SKIP_5V
No load, VFB = VBIAS, skip mode
4.9
5
5.15
V
VOUT_
SKIP_4.2V
4.12
4.2
4.33
VOUT_
SKIP_3.3V
3.23
3.3
3.4
Load Regulation
VFB = VBIAS, 30mA < ILOAD < 3A
0.5
%
Line Regulation
VFB = VBIAS, 6V < VSUPSW < 36V
0.02
%/V
BST Input Current
IBST_ON
High-side MOSFET on,
VBST - VLX = 5V
1.5
mA
IBST_OFF
High-side MOSFET off,
VBST - VLX = 5V
1.5
µA
LX Current Limit
ILX
MAX20003
3.75
5
6.25
A
MAX20002
2.5
3.33
4.16
LX Rise Time
VOUT = 5V, 3.3V
4
ns
Spread Spectrum
Spread spectrum enabled
FOSC
±3%
High-Side Switch On-
Resistance
RON_H
ILX = 0.5A, VBIAS = 5V
60
140
mΩ
High-Side Switch Leakage
Current
High-side MOSFET off, VSUP = 36V,
VLX = 0V, TA = +25°C
1
5
µA
Low-Side Switch On-
Resistance
RON_L
ILX = 0.5A, VBIAS = 5V
35
70
mΩ
Low-Side Switch Leakage
Current
Low-side MOSFET off, VSUP = 36V,
VLX = 36V, TA = +25°C
1
5
µA
FB Input Current
IFB
TA = +25°C
20
100
nA
FB Regulation Voltage
VFB
FB connected to an external resistive
divider, 6V < VSUPSW < 36V
0.99
1
1.01
V
FB Line Regulation
∆VLINE
6V < VSUPSW < 36V
0.02
%/V
Transconductance (from FB to
COMP)
gm
VFB = 1V, VBIAS = 5V
700
µS
Minimum On-Time
tON_MIN
80
ns
Maximum Duty Cycle
DCMAX
98
99
%
www.maximintegrated.com
Maxim Integrated │ 4
MAX20002/MAX20003
36V, 220kHz to 2.2MHz, 2A/3A Fully
Integrated Step-Down Converters
with 15μA Operating Current



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