ncp1570d ON Semiconductor, ncp1570d Datasheet - Page 3

• Manufacturer Part Number: ncp1570d
• 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
COMP Fault Discharge Current at
COMP Fault Discharge Threshold to
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
Delay Discharge Current at UVLO
Delay Discharge Threshold to Reset
“Good” Signal Delay
FB
UVLO
Reset UVLO
UVLO
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
V
V
COMP = 1.2 V, V
COMP = 0.5 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
I
PGDELAY = 2.0 V
Ramp PGDELAY, Monitor PWRGD
PGDELAY = 0.5 V, V
PGDELAY = 0.5 V, V
With 0.01 μF. Note 2
SINK
FB
FB
FB
CC
Ramp COMP to 0.1 V. Monitor I (COMP)
0.5 nF < C
Note 2
0.5 nF < C
Note 2
12 V, Ramp PGDELAY to 0.1 V, Monitor I
(PGDELAY)
= 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
CC
CC
FB
= 0.8 V
= 1.2 V
= 0 V
= 6.9 V
= 12 V − 6.9 V − 12 V.
= C
= C
CC
CC
−
−
−
−
−
−
−
−
= 6.9 V
= 12 V to 6.9 V to
3
GATE(L)
GATE(L)
CC
< 10 nF
< 10 nF
< 12.6 V, C
CC
− 2.0 V
GATE(H)
V
CC
0.975
0.856
0.666
3.45
Min
2.4
0.5
0.1
7.0
3.1
0.5
0.1
1.0
15
15
25
25
20
= C
−
−
−
−
−
−
−
−
−
−
−
−
− 0.5
GATE(L)
0.985
0.887
0.690
= 3.3 nF,
0.25
0.15
0.25
V
Typ
250
0.2
2.7
0.1
1.7
2.5
4.0
3.3
2.0
3.0
30
30
98
20
70
32
40
40
50
50
50
12
CC
0
0.995
0.917
0.713
Max
115
2.0
0.2
0.3
0.5
0.4
4.3
3.5
0.3
5.0
60
60
80
80
75
75
18
−
−
−
−
−
−
−
−
−
−
mmho
Unit
kHz
mA
MΩ
mA
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