ADP3050-3.3 Analog Devices, ADP3050-3.3 Datasheet - Page 2

• Manufacturer Part Number: ADP3050-3.3
• Description: 200 Khz, 1 a Step-down High-voltage Switching Regulator
• Manufacturer: Analog Devices

ADP3050–SPECIFICATIONS
Parameter
FEEDBACK
ERROR AMPLIFIER
OSCILLATOR
SWITCH
SHUTDOWN
SUPPLY
NOTES
1
2
3
4
5
6
Specifications subject to change without notice.
voltage parts, divide the values shown by FB/1.20.
depend on output voltage and load current.
All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC).
Transconductance and voltage gain measurements refer to the internal amplifier without the voltage divider. To calculate the transconductance and gain of the fixed
The switching frequency is reduced when the feedback pin is lower than 0.8
See Figure 1 for test circuit.
Switch current limit is measured with no diode, no inductor, and no output capacitor.
Minimum input voltage is not measured directly, but is guaranteed by other tests. The actual minimum input voltage needed to keep the output in regulation will
Feedback Voltage
Line Regulation
Load Regulation
Input Bias Current
Transconductance
Voltage Gain
Output Current
Oscillator Frequency
Minimum Duty Cycle
Maximum Duty Cycle
Average Output Current Limit
Peak Switch Current Limit
Saturation Voltage
Leakage Current
Input Voltage Low
Input Voltage High
Input Voltage Range
Minimum BIAS Voltage
Minimum BOOST Voltage
IN Supply Current
BIAS Supply Current
BOOST Supply Current
ADP3050
ADP3050-3.3
ADP3050-5
ADP3050
ADP3050-3.3
ADP3050-5
ADP3050
ADP3050-3.3
ADP3050-5
Normal Mode
Shutdown Mode
2
2
6
3
5
4
Symbol
V
I
g
A
f
D
D
I
I
V
V
V
I
I
I
OSC
FB
CL(AVG)
CL(PEAK)
Q
BIAS
BOOST
m
FB
VOL
IN
BIAS
BOOST
MIN
MAX
1
Conditions
Over Line and Temperature
V
I
ADP3050AR Only
ADP3050AR-3.3, ADP3050AR-5
ADP3050AR Only
COMP = 1.0 V, FB = 1.1 V to 1.3 V
COMP = 1.0 V, FB = 3.0 V to 3.6 V
COMP = 1.0 V, FB = 4.5 V to 5.5 V
BOOST = 15 V, FB = 1.1 V
BOOST = 15 V, FB = 3.0 V
BOOST = 15 V, FB = 4.5 V
BOOST = 15 V, I
BIAS = 5.0 V
SD = 0 V, V
BIAS = 5.0 V
BOOST = 15 V, I
BOOST = 15 V, I
(V
LOAD
IN
IN
= 10 V to 30 V, no load
= 10 V, T
= 100 mA to 1 A,
FB.
IN
A
= –40 C to +85 C, unless otherwise noted)
≤ 30 V
LOAD
SW
SW
= 0.5 A
= 1.0 A
= 1 A
Min
1.16
3.20
4.85
–1.0
–0.5
170
1.0
1.0
1.0
1.5
2.0
3.6
Typ
1.20
3.30
5.00
0.005
+0.1
+0.1
0.65
1250
300
± 115
± 120
± 135
200
10
90
1.25
1.25
1.25
1.7
0.65
50
0.7
15
4.0
18
20
Max
1.24
3.40
5.15
+1.0
+0.5
2
240
1.5
1.5
1.5
2.1
0.95
0.4
30
3.0
3.0
1.5
40
6.0
40
Unit
V
V
V
%/V
%/A
%/A
µA
µMho
V/V
µA
µA
µA
kHz
%
%
A
A
A
V
nA
V
V
V
V
V
mA
µA
mA
mA
mA
A