NCP5211 ON Semiconductor, NCP5211 Datasheet - Page 5

• Manufacturer Part Number: NCP5211
• Description: Low Voltage Synchronous Buck Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
20 V; C
COMP
SGND
LGND
3. Guaranteed by design. Not tested in production.
4. Recommended maximum operating voltage between the three grounds is 200 mV.
V
BST/V
Start Threshold
Stop Threshold
Hysteresis
Sense Ground Current
V
General Electrical Specifications
V
CC
FFB
V
IS+
IS−
CC
FB
Supply Current
GATE(H)
C
Characteristic
Supply Current
V
60 mV
0.8 V
START
= C
GATE(L)
0.5 V
1.0 V
= 3.3 nF; R
Comparator
Comparator
Comparator
Error Amp
100 % DC
UVLO
OC
COMP = 0 V (no switching)
COMP = 0 V (no switching)
GATE(H) Switching, COMP Charging
GATE(H) Not Switching, COMP Not Charging
Start−Stop
(Note 4)
5.0 mA
OSC
(continued) (−40 C < T
= 51 k; C
0.25 V
ART Ramp
COMP Discharge COMP
Fault
COMP
UVLO
PWM Comparator
Figure 2. Block Diagram
Test Conditions
= 0.1 mF, unless otherwise specified.) (Note 3)
http://onsemi.com
NCP5211
R
OSC
A
OSC
< 85 C; −40 C < T
5
Set Dominant
S
R
Reset Dominant
R
S
PWM FF
Q
Q
J
< 125 C; 4.5 V < V
Q
Q
Fault
3.90
3.75
Min
100
−
−
−
CC
, V
C
4.05
3.90
0.15
< 14 V; 7.0 V < BST <
Typ
150
5.0
2.0
Max
4.20
4.05
1.00
200
8.0
3.0
GATE(H)
BST
PGND
R
V
GATE(L)
OSC
C
Unit
mA
mA
mV
mA
V
V