參數(shù)資料
型號(hào)： MAX15003
廠商： Maxim Integrated Products, Inc.
英文描述： Triple-Output Buck Controller with Tracking/Sequencing
中文描述： 三輸出buck控制器，提供跟蹤/排序功能
文件頁(yè)數(shù)： 4/32頁(yè)
文件大小： 945K
代理商： MAX15003
M
Triple-Output Buck Controller with
Tracking/Sequencing
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 5.5V to 23V or V
IN
= V
REG
= 4.5V to 5.5V, V
DREG
_ = V
REG
, V
PGND
_ = V
SYNC
= V
PHASE
= V
SEL
= 0V, C
REG
= 2.2μF, R
RT
=
100k
, C
CT
= 0.1μF, R
ILIM
_ = 60k
, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at V
IN
= 12V and T
A
= T
J
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
80
TYP
MAX
UNITS
%V
REG
%V
REG
μA
SEL High Threshold
SEL Low Threshold
SEL Input Bias Current
PGOOD,
RESET
OUTPUTS
FB_ For Threshold PGOOD_
20
Present only during startup
-100
+100
FB_ falling
0.540
0.555
0.570
V
RESET
, PGOOD_ Output Low
Level
Sinking 3mA
0.1
V
RESET
, PGOOD_ Leakage
CT Charging Current
CT Pulldown Resistance
-1
1.8
+1
2.2
33
2.6
μA
μA
2.0
Sinking 3mA
CT rising
CT failling
1.8
CT Threshold for
RESET
Delay
1.2
V
OSCILLATOR
Switching Frequency Range
(Each Converter)
f
SW
V
SYNC
= 0V, f
CLK
= 10
11
/ (R
RT
+ 1.75k
)
200
2200
kHz
f
SW
≤
1500kHz
f
SW
≥
1500kHz
-5
+5
Switching Frequency Accuracy
(Each Converter)
-7
+7
%
V
PHASE
= 0V (DH1 rising to DH2 rising and
DH2 rising to DH3 rising)
120
degrees
Phase Delay
V
PHASE
= V
REG
(DH1 rising to DH2 rising
and DH2 rising to DH3 rising)
0
degrees
RT Voltage
Minimum Controllable On-Time
Minimum Off-Time
SYNC High-Level Voltage
SYNC Low-Level Voltage
SYNC Internal Pulldown Resistor
SYNC Frequency Range
SYNC Minimum On-Time
SYNC Minimum Off-Time
PWM Ramp Amplitude
(Peak-to-Peak)
V
RT
40k
< R
RT
< 500k
2
75
150
V
ns
ns
V
V
k
MHz
ns
ns
t
ON(MIN)
t
OFF(MIN)
2
0.8
200
6.9
50
0.6
100
(Note 3)
30
30
2
V
PWM Ramp Valley
1
V
Note 1:
100% production tested at T
A
= T
J
= +25°C and T
A
= T
J
= +125°C. Limits at other temperature are guaranteed by design.
Note 2:
For 5V applications, connect REG directly to IN.
Note 3:
The switching frequency is 1/3 of the SYNC frequency.
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