NCP1573D ONSEMI [ON Semiconductor], NCP1573D Datasheet - Page 3

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NCP1573D

Manufacturer Part Number
NCP1573D
Description
Low Voltage Synchronous Buck Controller
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
ELECTRICAL CHARACTERISTICS
C
Error Amplifier
GATE(H) and GATE(L)
Power Good
2. Guaranteed by design. Not tested in production.
PGDELAY
V
COMP Source Current
COMP Sink Current
Reference Voltage
COMP Max Voltage
COMP Min Voltage
Open Loop Gain
Unity Gain Bandwidth
PSRR @ 1.0 kHz
Output Transconductance
Output Impedance
Rise Time
Fall Time
GATE(H) to GATE(L) Delay
GATE(L) to GATE(H) Delay
Minimum Pulse Width
High Voltage (AC)
Low Voltage (AC)
GATE(H)/(L) Pull−Down
Lower Threshold, V
Lower Threshold, V
PWRGD Low Voltage
Delay Charge Current
Delay Clamp Voltage
Delay Charge Threshold
“Good” Signal Delay
FB
Bias Current
= 0.01 μF, C
Characteristic
O
O
COMP
Rising
Falling
= 0.1 μF; unless otherwise specified.)
(0°C < T
V
COMP = 1.5 V, V
COMP = 1.5 V, V
COMP = V
T
V
V
1.0 V < GATE(L), GATE(H) < V
V
GATE(H) < 2.0 V, GATE(L) > 2.0 V
GATE(L) < 2.0 V, GATE(H) > 2.0 V
GATE(X) = 4.0 V
Measure GATE(L) or GATE(H)
Measure GATE(L) or GATE(H)
Resistance to GND. Note 2.
T
T
I
PGDELAY = 2.0 V
Ramp PGDELAY, Monitor PWRGD
With 0.01 μF. Note 2.
SINK
FB
J
FB
FB
CC
J
J
0.5 nF < C
Note 2.
0.5 nF < C
Note 2.
< 25°C
< 25°C
< 25°C
= 0 V
= 0.8 V
= 1.2 V
− 2.0 V < GATE(L), GATE(H) < 1.0 V
= 1.0 mA, V
J
< 125°C, 11.4 V < V
FB
GATE(H)
GATE(H)
Test Conditions
http://onsemi.com
FB
FB
FB
= 0.8 V
= 1.2 V
= 0 V
= C
= C
3
GATE(L)
GATE(L)
CC
CC
< 10 nF
< 10 nF
< 12.6 V, C
− 2.0 V
GATE(H)
V
CC
0.970
0.965
0.852
0.847
0.663
0.658
3.45
Min
2.4
7.0
3.1
1.0
15
15
40
40
20
= C
− 0.5
GATE(L)
0.980
0.980
0.882
0.882
0.685
0.685
= 3.3 nF,
0.15
V
Typ
250
0.2
2.7
0.1
2.5
4.0
3.3
3.0
30
30
98
20
70
32
40
40
60
60
50
12
CC
0
0.990
0.995
0.912
0.917
0.709
0.714
Max
100
100
115
2.0
0.2
0.5
0.4
4.3
3.5
5.0
60
60
80
80
18
mmho
Unit
kHz
ms
μA
μA
μA
dB
dB
μA
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V

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