參數(shù)資料
型號(hào): DS232AS
廠商: DALLAS SEMICONDUCTOR
元件分類: Line Driver or Receiver
英文描述: LINE TRANSCEIVER, PDSO16
封裝: 0.300 INCH, SOIC-16
文件頁(yè)數(shù): 22/28頁(yè)
文件大小: 581K
代理商: DS232AS
MAX15023
Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
3
Maxim Integrated
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FB_ to COMP_
Transconductance
gm
ICOMP = ±40A
650
1200
1900
S
Amplifier Open-Loop Gain
No load
80
dB
Amplifier Unity-Gain Bandwidth
10
MHz
COMP_ Swing (High)
2.4
V
COMP_ Swing (Low)
No load at COMP_
0.6
V
COMP_ Source/Sink Current
ICOMP_
| ICOMP_ |, VCOMP_ = 1.5V
45
80
120
A
ENABLE (EN_)
EN_ Input High
VEN_H
EN_ rising
1.15
1.20
1.25
V
EN_ Input Hysteresis
VEN_HYS
150
mV
EN_ Input Leakage Current
ILEAK_EN_
-250
+250
nA
OSCILLATOR
Switching Frequency
fSW
Each converter
460
500
540
kHz
Switching Frequency
Adjustment Range
(Note 4)
200
1000
kHz
PWM Ramp Peak-to-Peak
Amplitude
VRAMP
1.42
V
PWM Ramp Valley
VVALLEY
0.72
V
Phase Shift Between
Channels
From DH1 to DH2 rising edges
180
Degrees
Minimum Controllable On-Time
60
100
ns
Maximum Duty Cycle
86
87.5
%
OUTPUT DRIVERS
Low, sinking 100mA, VBST_ - VLX_ = 5V
1
DH_ On-Resistance
High, sourcing 100mA, VBST_ - VLX_ = 5V
1.2
Low, sinking 100mA, VCC = 5.2V
0.75
DL_ On-Resistance
High, sourcing 100mA, VCC = 5.2V
1.4
Sinking
3
DH_ Peak Current
CLOAD = 10nF
Sourcing
2
A
Sinking
3
DL_ Peak Current
CLOAD = 10nF
Sourcing
2
A
DH_, DL_ Break-Before-Make
Time (Dead Time)
15
ns
SOFT-START
Soft-Start Duration
2048
Switching
cycles
Reference Voltage Steps
64
Steps
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 12V, RT = 33k, CVCC = 4.7F, CIN = 1F, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 3)
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