FAN5037 Datasheet, PDF (3/11 Pages) Fairchild Semiconductor – Adjustable Switching Regulator Controller

PRODUCT SPECIFICATION
FAN5037
Electrical Characteristics
(VCCA = 5V, VCCP = 12V, TA = 25°C using circuit of Figure 1, unless otherwise noted)
The • denotes specifications which apply over the full ambient operating temperature range.
Parameter
Output Voltage
Output Temperature Drift
Line Regulation
Load Regulation
VOUT PSRR
Output Ripple, peak-peak
Total DC Accuracy¹
Efficiency
Output Driver Current
Short Circuit Threshold Voltage
Undervoltage Lockout
On Time Pulse Width²
VCCA Supply Current
VCCP Supply Current
Conditions
TA = 0˚C–70˚C
VCCA = 4.75 to 5.25V, ILOAD = 13A
ILOAD = 0 to 5A or 5A to 13A
VCCA = 4.75 to 5.25V
20MHz BW, ILOAD = 13A
•
ILOAD = 5A
Open Loop
•
•
•
CEXT = 180pF
Independent of load
•
ILOAD = 13A
•
Min.
1.2
60
80
0.5
70
3.5
Typ.
40
3
30
15
±55
85
90
4.0
3.5
5
20
Notes:
1. Total DC accuracy includes setpoint accuracy, temperature drift, line and load regulation.
2. The on-time pulse width of the oscillator is set via external capacitor CEXT.
Max.
3.6
5
43
±100
100
4.5
15
25
Units
V
ppm/˚C
mV
mV
dB
mV
mV
%
A
mV
V
µs
mA
mA
REV. 1.0.3 9/26/01
3