FAN5070 Datasheet, PDF (3/14 Pages) Fairchild Semiconductor – High Performance Programmable Synchronous DC-DC Controller

FAN5070
Absolute Maximum Ratings
Supply Voltage V_CCP to GND
Supply Voltage V_CCA to GND
Voltage Identification Code Inputs, VID0-VID4
All Other Pins
Junction Temperature, T_J
Storage Temperature
Lead Soldering Temperature, 10 seconds
Thermal Resistance Junction-to-case, Θ ^1JA
Note 1: Component mounted on demo board in free air.
15V
13.5V
VCCA
13.5V
150°C
-65 to 150°C
300°C
75°C/W
Recommended Operating Conditions
Parameter
Supply Voltage V_CCA
Input Logic HIGH
Input Logic LOW
Ambient Operating Temperature
Output Driver Supply, V_CCP
Conditions
Min.
4.50
2.0
0
10.8
Typ.
5
12
Max.
5.25
0.8
70
13.2
Units
V
V
V
°C
V
Electrical Specifications
(V_CCA = 5V, V_CCP = 12V, V_OUT = 1.425V, and T_A = +25°C using circuits in Figure 1, unless otherwise noted.)
The • denotes specifications which apply over the full operating temperature range.
Parameter
Conditions
Output Voltage
See Table I
Output Current
Initial Voltage Setpoint
Output Temperature Drift
Line Regulation
Internal Droop Impedance³
Maximum Programmable Droop
I_LOAD = 0.8A, V_VID = 1.425V
T_A = 0 to 70°C, V_VID = 1.425V
V_IN = 4.75V to 5.25V
I_LOAD = 0.8A to 30A
Output Ripple
20MHz BW, I_LOAD = 28A
Total Output Variation, Steady State¹ V_VID = 1.425V³
Total Output Variation, Transient² I_LOAD = 0.8A to I_max, V_VID = 1.425V
Short Circuit Detect Current
Efficiency
Output Driver Rise & Fall Time
I_LOAD = 18A, V_VID = 1.425V
See Figure 3
Output Driver Deadtime
See Figure 3
Duty Cycle
5V UVLO
12V UVLO
Oscillator Frequency
PWRGD Threshold⁴ Switcher
PWRGD Delay Switcher
Logic HIGH [V_VID + 85mV]
Logic LOW [V_VID–155mV]
HIGH → LOW
PWRGD Hysteresis Switcher
Min. Typ. Max. Units
• 1.05
1.825 V
28
A
1.453 1.465 1.477 V
•
-6
mV
•
+10
mV/V
13.0 14.4 15.8 KΩ
• 200
mV
20
mVpk
• 1.360
1.490 V
• 1.335
1.515 V
• 45 50 60 µA
83
%
50
nsec
50
nsec
0
100 %
• 3.76 4 4.24 V
• 7.65 8.5 9.35 V
• 255 300 345 kHz
• 88
• 80
112 %
120
6
µsec
25
mV
REV. 1.0.1 8/7/01
3