ncp4201 ON Semiconductor, ncp4201 Datasheet - Page 6
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ncp4201
Manufacturer Part Number
ncp4201
Description
Ncp4201 Programmable Multi-phase Synchronous Buck Converter With Pmbus
Manufacturer
ON Semiconductor
Datasheet
1.NCP4201.pdf
(32 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
NCP4201
Manufacturer:
ON/安森美
Quantity:
20 000
Company:
Part Number:
ncp4201MNR2G
Manufacturer:
ON Semiconductor
Quantity:
2 000
Load Line Positioning Accuracy
Load Line Range
Load Line Attenuation
Differential Non−linearity
Input Bias Current
Offset Accuracy
FBRTN Current
Output Current
Gain Bandwidth Product
Slew Rate
BOOT Voltage Hold Time
Input Low Voltage
Input High Voltage
Input Current
VID Transition Delay Time
(Note 1)
No CPU Detection Turn−Off
Delay Time
Frequency Range (Note 1)
Frequency Variation
Output Voltage
RAMPADJ Output Voltage
RAMPADJ Input Current Range
Offset Voltage
Input Bias Current, CSREF
Input Bias Current, CSSUM
Gain Bandwidth Product
Slew Rate
Input Common−Mode Range
Output Voltage Range
Output Current
Current Limit Latchoff Delay Time
ELECTRICAL CHARACTERISTICS
(Note 1 and 3).
REFERENCE CURRENT
ERROR AMPLIFIER
VID INPUTS
OSCILLATOR
CURRENT SENSE AMPLIFIER
Reference Bias Voltage
Reference Bias Current
Output Voltage Range (Note 1)
Accuracy
Parameter
I
I
BIAS(CSSUM)
BIAS(CSREF)
V
GBW
GBW
V
I
V
I
Symbol
RAMPADJ
FB(BOOT)
V
V
CSCOMP
V
RAMPADJ
I
I
f
I
OS(CSA)
V
t
FBRTN
IN(VID)
PHASE
I
COMP
COMP
BOOT
IL(VID)
IH(VID)
f
IREF
V
V
OSC
IREF
I
FB
V
FB
RT
(ERR)
(CSA)
IN
= 5.0 V, FBRTN = GND for typical values T
I
VR Offset Register = 111111, VID = 1.0 V
VR Offset Register = 011111, VID = 1.0 V
FB forced to V
COMP = FB
COMP = FB
Internal Timer
VID(X)
VID(X)
VID code change to FB change
VID code change to PWM going low
T
T
T
R
RAMPADJ − FB, V
I
CSSUM − CSREF (Note 3)
CSREF = 1.0 V
CSREF = 1.0 V
CSSUM = CSCOMP
C
CSSUM and CSREF
Internal Timer
FB =
RAMPADJ
R
Relative to nominal DAC output,
referenced to FBRTN (Note 2)
In startup
A
A
A
T
CSCOMP
IREF
= 25°C, R
= 25°C, R
= 25°C, R
= 500 kW to GND
http://onsemi.com
I
IREF
= 121 kW
= −50 mA
= 10 pF
T
T
T
OUT
= 460kW, 4−phase
= 220kW, 4−phase
=120kW, 4−phase
6
Conditions
FB
– 3%
= 1.0 V,
A
= 0°C to 85°C, unless otherwise noted.
1.041
1.75
−7.7
−350
−1.0
14.2
0.25
1.93
−0.7
0.05
Min
−77
200
220
−50
−20
−10
0.8
5.0
5.0
0
0
0
−193.75
193.75
1.05
Typ
−5.0
2.03
−80
500
260
500
850
500
1.8
2.0
8.0
16
16
70
20
25
10
10
1.059
Max
+7.7
+1.0
17.7
2.13
+0.7
−83
100
200
290
+50
+20
+10
1.9
4.4
0.3
6.0
3.0
3.0
60
0
Unit
MHz
MHz
MHz
LSB
V/ms
V/ms
kHz
mV
mA
mV
mV
mV
mV
mV
ms
ms
mA
mA
mA
mA
mA
mA
nA
mA
ns
ms
V
V
V
%
V
V
V
V
V