MAX5951 Maxim Integrated Products, MAX5951 Datasheet - Page 3

• Manufacturer Part Number: MAX5951
• Description: Buck PWM Controller
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
-40°C to +85°C, unless otherwise noted. Typical values are at T
PWM PGOOD OUTPUT
SENSE Threshold
SENSE Hysteresis
SENSE Input Bias Current
PGOOD Internal Pullup Current
PGOOD Output Voltage Low
INTERNAL VOLTAGE REGULATOR
Output Voltage Set Point
Line Regulation
Load Regulation
PWM OSCILLATOR
Oscillator Frequency Range
Oscillator Accuracy
RT Voltage
Maximum Duty Cycle
SYNCIN High-Level Voltage
SYNCIN Low-Level Voltage
SYNCIN Pulldown Resistor
SYNCIN Rising to SYNCOUT
Falling Delay
SYNCIN Falling to SYNCOUT
Rising Delay
Maximum SYNCIN Frequency
SYNCOUT Voltage High
SYNCOUT Voltage Low
PWM ERROR AMPLIFIER
FB Input Range
FB Input Current
COMP Output Voltage Range
Open-Loop Gain
Unity-Gain Bandwidth
Reference Voltage
IN
= 12V or V
PARAMETER
IN
= V
_______________________________________________________________________________________
REG
= 5V, V
DREG
12V/5V Input Buck PWM Controller
VH
VL
SYMBOL
SYNCOUT
SYNCOUT
= V
V
f
V
V
f
GBW
REG
SW
REF
RT
REG
, V
PGND
V
I
V
I
V
T
T
50kΩ < R
V
I
I
I
I
PGOOD
REG
SYNCOUT
SYNCOUT
COMP
COMP
A
A
SENSE
IN
SYNCIN
SYNCIN
= T
= T
= 8V to 16V
= 0 to 50mA
= 0V, V
J
J
= -500µA to +500µA
= -500µA to +500µA
rising
= +25°C
= -40°C to +85°C
= -2.4mA
= 0V, f
= 0V, V
RT
= +1.2mA
= -2.4mA
A
< 500kΩ
SYNCIN
= T
CONDITIONS
SW
IN
J
= 12V
= +25°C.) (Note 1)
= 5 x 10
= 0V, R
10
f
f
f
f
RT
/ R
SW
SW
SW
SW
RT
= 100kΩ, R
< 500kHz
> 500kHz
< 500kHz
> 500kHz
Hz
ILIM
V
-250
0.25
MIN
REG
788
100
-2.5
-3.5
792
4.7
2.1
0.1
82
50
-1
-4
-5
= 60kΩ, C
1
0
-
TYP
800
100
100
800
2.5
10
88
10
30
80
2
REG
= 2.2µF, T
V
+250
MAX
1000
V
+2.5
+3.5
REG
812
150
150
808
5.3
0.8
0.5
+1
+4
+5
50
50
REF
1
-
A
UNITS
mV/V
MHz
MHz
kHz
= T
mV
mV
mV
mV
mV
mV
kΩ
dB
µA
µA
nA
ns
ns
%
%
%
V
V
V
V
V
V
V
J
3
=