ncp1573 ON Semiconductor, ncp1573 Datasheet - Page 3

• Manufacturer Part Number: ncp1573
• Description: Low Voltage Synchronous Buck Controller
• Manufacturer: ON Semiconductor

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
MΩ
ms
μA
μA
μA
dB
dB
kΩ
μA
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V