ncp5252 ON Semiconductor, ncp5252 Datasheet - Page 6

• Manufacturer Part Number: ncp5252
• Description: 2a Integrated Sync Buck Converter
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
SWITCHING MODULATOR
VOLTAGE ERROR AMPLIFIER
OVERCURRENT PROTECTION LIMIT
POWER OUTPUT SECTION
CONTROL SECTION
OUTPUT DISCHARGE MODE
THERMAL SHUTDOWN
1. Guaranteed by design, not tested in production.
2. Test mode disables the T
Minimum T
Minimum T
PWM Comparator Offset
Propagation Delay of PWM
Comparator
DC Gain
Open−Loop Phase Margin
Unity Gain Bandwidth
Slew Rate
FB Bias Current
Output Voltage Swing
High Side Peak Current Limit
(Cycle−by−Cycle)
Low Side Valley Current Limit,
Short−Circuit (4 ms)
Low Side Valley Current Limit
(Current Limit, 16 ms)
Internal Main FET ON−Resistance
Internal Sync FET ON−Resistance
LX Leakage Current
EN / SKIP Logic Input Voltage for
Disable
EN / SKIP Logic Input Voltage for
FPWM
EN / SKIP Logic Input Voltage for
Skip Mode
EN / SKIP Source Current
EN / SKIP Sink Current
EN_SKIP Logic Input Delay
PGOOD Pin ON Resistance
PGOOD Pin OFF Current
Output Discharge On−Resistance
Thermal Shutdown
Thermal Shutdown Hysteresis
Characteristics
on
off
on
/T
off
min.
V
PGOOD_LK
I
GAIN_VEA
PGOOD_R
V
EN_SOURCE
R
EN_DISABLE
TD_PWM
R
R
BW_VEA
V
SR_VEA
LSOC_S
V
V
LSOC_L
I
V
Symbol
V
EN_FPWM
T
T
PH_EA
I
EN_SINK
(V
HSOC
DS(on)_M
LX_LK
DS(on)_F
EN_SKIP
discharge
bias_FB
EN_HYS
EN_HYS
T
max_EA
on_min
off_min
min_EA
sdhys
T
CC
sd
= 4.5 to 13.2 V, T
http://onsemi.com
(I
LX
V
COMP PIN TO GND = 100 pF
(I
EN
FB = 0, T
= 100 mA, FB = 1 V, T
LX
Change mode delay active
A
LX = 13.2, V
T
=100mA, VBST−LX = 5 V,
= 0V, LX = 0, V
= −40°C to 85°C, unless other noted)
on
Set as FCCM mode
Set as SKIP Mode
I_PGOOD = 5 mA
6
Test Conditions
I
source_EA
V
V
I
Minimum > 100 ns
Set as Disable
PGOOD = 5 V
sink_EA
(Notes 1 & 2)
(Notes 1 & 2)
(Notes 1 & 2)
EN_SKIP
EN_SKIP
Hysteresis
Hysteresis
A
EN = 0 V
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
= 25°C) (Note 1)
CC
= 2mA
= 2mA
= 0 V
= 5 V
= 13.2 V
CC
= 13.2 V
A
= 25°C)
2.25
Min
200
5.0
3.3
3.4
3.0
2.0
0.7
1.7
40
80
50
15
0.15
3.75
1.95
2.45
Typ
225
150
100
300
250
150
5.0
3.5
4.0
2.5
1.0
50
88
20
75
20
25
3
Max
+5.0
−5.0
2.10
2.65
250
225
150
0.1
0.3
4.6
4.5
3.4
1.3
0.1
0.1
60
10
20
35
1
MHz
Unit
V/ms
Deg
mW
mW
mV
mV
mV
Clk
dB
mA
mA
mA
mA
mA
mA
°C
°C
ns
ns
ns
V
V
A
A
A
V
V
V
W
W