NCP5211 ON Semiconductor, NCP5211 Datasheet - Page 3

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

PIN DESCRIPTION
MAXIMUM RATINGS
IC Power Input
Power input for the low side driver
Power Supply input for the high side driver
Compensation Capacitor
Voltage Feedback Input
Oscillator Resistor
Fast Feedback Input
High−Side FET Driver
Low−Side FET Driver
Positive Current Sense
Negative Current Sense
Power Ground
Logic Ground
Sense Ground
PIN NO.
10
12
13
14
11
1
2
3
4
5
6
7
8
9
Pin Name
PIN SYMBOL
GATE(H)
GATE(L)
COMP
LGND
SGND
PGND
R
V
BST
V
V
IS−
IS+
V
OSC
FFB
CC
FB
C
High Side Switch FET driver pin. Capable of delivering peak currents of 1.0 A.
Power supply input for the high side driver.
Reference ground. All control circuits are referenced to this pin. IC substrate connection.
Input for the PWM comparator.
Error amplifier input.
Error Amp output. PWM Comparator reference input. A capacitor to LGND provides error amp
compensation.
Internal reference is connected to this ground. Connect directly at the load for ground remote
sensing.
A resistor from this pin to SGND sets switching frequency.
Input Power Supply Pin. It supplies power to control circuitry. A 0.1 mF Decoupling cap is
recommended.
Negative input for overcurrent comparator.
Positive input for overcurrent comparator.
Power supply input for the low side driver.
Low Side Synchronous FET driver pin. Capable of delivering peak currents of 1.0 A.
High Current ground for the GATE(H) and GATE(L) pins.
Pin Symbol
GATE(H)
GATE(L)
COMP
PGND
SGND
LGND
R
V
BST
V
V
IS+
IS−
V
OSC
FFB
CC
FB
C
http://onsemi.com
NCP5211
V
6.0 V
6.0 V
6.0 V
6.0 V
6.0 V
6.0 V
0.3 V
0.3 V
16 V
16 V
20 V
20 V
16 V
0 V
MAX
3
−2.0 V for 50 ns
−2.0 V for 50 ns
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
V
0 V
MIN
FUNCTION
200 mA DC
200 mA DC
200 mA DC
1.5 A Peak,
1.5 A Peak,
1.5 A Peak
I
100 mA
SOURCE
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
N/A
N/A
N/A
1.5 A Peak, 200 mA DC
1.5 A Peak, 200 mA DC
1.5 A Peak, 200 mA DC
1.5 A Peak, 200 mA DC
50 mA DC
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
I
SINK
N/A
N/A