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PCMB065T-R68MS 数据表(PDF) 7 Page - International Rectifier

部件名 PCMB065T-R68MS
功能描述  6A Highly Integrated SupIRBuck
PDF  46 Pages
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制造商  IRF [International Rectifier]
网页  http://www.irf.com
标志 IRF - International Rectifier

PCMB065T-R68MS 数据表(HTML) 7 Page - International Rectifier

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JANURARY 18, 2013 | DATA SHEET | Rev 3.5
7
IR3898
6A Highly Integrated SupIRBuck
TM
Single-Input Voltage, Synchronous Buck Regulator
PD-97662
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Short Circuit Current
Ishort
70
mA
Zero-crossing Comparator Delay
Tdly_zc
Note 4
256/Fs
s
Zero-crossing Comparator Offset
Vos_zc
Note 4
-4
0
4
mV
Oscillator
Rt Voltage
Vrt
1.0
V
Frequency Range
Fs
Rt = 80.6K
270
300
330
kHz
Rt = 39.2K
540
600
660
Rt = 15.0K
1350
1500
1650
Ramp Amplitude
Vramp
Vin = 7.0V, Vin slew rate max =
1V/µs, Note 4
1.05
Vp-p
Vin = 12V, Vin slew rate max =
1V/µs, Note 4
1.80
Vin = 16V, Vin slew rate max =
1V/µs, Note 4
2.39
Vin =Vcc=5V, For external Vcc
operation, Note 4
0.75
Ramp Offset
Ramp(os)
Note 4
0.16
V
Min Pulse Width
Tmin(ctrl)
Note 4
60
ns
Max Duty Cycle
Dmax
Fs = 300kHz, PVin = Vin = 12V
86
%
Fixed Off Time
Toff
Note 4
200
250
ns
Sync Frequency Range
Fsync
270
1650
kHz
Sync Pulse Duration
Tsync
100
200
ns
Sync Level Threshold
High
3
V
Low
0.6
Error Amplifier
Input Offset Voltage
Vos_Vref
VFb – Vref, Vref = 0.5V
-1.5
+1.5
%
Vos_Vp
VFb – Vp, Vp = 0.5V
-1.5
+1.5
Input Bias Current
IFb(E/A)
-1
+1
µA
Input Bias Current
IVp(E/A)
0
+4
Sink Current
Isink(E/A)
0.4
0.85
1.2
mA
Source Current
Isource(E/A)
4
7.5
11
mA
Slew Rate
SR
Note 4
7
12
20
V/µs
Gain-Bandwidth Product
GBWP
Note 4
20
30
40
MHz
DC Gain
Gain
Note 4
100
110
120
dB
Maximum output Voltage
Vmax(E/A)
1.7
2.0
2.3
V
Minimum output Voltage
Vmin(E/A)
100
mV
Common Mode input Voltage
0
1.2
V
Reference Voltage
Feedback Voltage
Vfb
Vref and Vp pin floating
0.5
V



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