L4970A STMicroelectronics, L4970A Datasheet - Page 6

• Manufacturer Part Number: L4970A
• Description: IC BUCK SYNC ADJ 10A MULTIWATT15
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4970A

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5.1 ~ 40 V
• Current - Output: 10A
• Frequency - Switching: 200kHz
• Voltage - Input: 15 ~ 50 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: Multiwatt-15 (Vertical, Bent and Staggered Leads)
• Power - Output: 30W
• Output Voltage: 40 V
• Output Current: 10 A
• Input Voltage: 15 V to 50 V
• Switching Frequency: 180 KHz to 220 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Duty Cycle (max): 90 %
• Current, Input Bias: 0.4 μA
• Current, Output: 10 A
• Current, Supply: 13 mA
• Frequency, Oscillator: 200 kHz
• Package Type: Multiwatt
• Power Dissipation: 30 W
• Regulation, Line: 10 mV
• Regulation, Load: 20 mV
• Regulator Type: Switching
• Resistance, Thermal, Junction To Case: 1 °C/W
• Temperature, Operating, Range: -40 to +150 °C
• Voltage, Dropout: 1.1 V
• Voltage, Gain: 60 dB
• Voltage, Input: 50 V
• Voltage, Offset: 2 mV
• Voltage, Output: 5.1 V
• Voltage, Output, High: 5.5 V
• Voltage, Output, Low: 0.9 V
• Voltage, Supply, Rejection Ratio: 80 dB
• No. Of Outputs: 1
• Power Dissipation Pd: 30W
• No. Of Pins: 15
• Filter Terminals: Through Hole
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1410-5

L4970A
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T
C
DYNAMIC CHARACTERISTICS
V
V
6/21
9
ref
START
Symbol
Symbol
Symbol
I
I
= 2.2nF, f
14 short
15 short
SVR
f
SECTION (pin 14)
V
V
V
V
I
max
V
V
V
V
V
T
V
V
V
7L
f
14
15
T
V
o
d
i
j
14
14
15
15
f
f
14
o
o
i
SECTION (pin 15)
input Voltage Range (pin 9)
Output Votage
Line Regulation
Load Regulation
Dropout Voltage Between
Pin 9 and 7
Max. Limiting Current
Efficiency
Supply Voltage Ripple
Reject.
Switching Frequency
Voltage Stability of
Swiching Frequency
Temperature Stability of
Swiching Frequency
Maximum Operating
Switching Frequency
Reference Voltage
Line Regulation
Load Regulation
Average Temperature
Coefficient Reference
Voltage
Short Circuit Current Limit
Reference Voltage
Line Regulation
Load Regulation
Short Circuit Current Limit
SW
= 200KHz typ, unless otherwise specified)
Parameter
Parameter
Parameter
V
I
V
I
V
I
V
I
I
I
I
V
I
V
V
I
V
V
V
f = 100Hz; V
V
T
V
I
V
I
T
V
V
I
V
o
o
o
o
o
o
o
o
o
o
14
15
j
j
o
i
i
o
i
o
o
o
o
i
i
o
i
14
i
15
= 10A
= 5A; V
= 5A; V
= 3A to 6A
= 2A to 10A
= 5A
= 10A
= 5A
= 10A
= 10A; C
= 15V to 50V
= 15V to 50V
= 15 to 50V
= 2VRMS; I
= 15V to 45V
= 0 to 125 C
= 15V to 50V
= 0 C to 125 C
= 15 to 50V
= V
= V
= V
= 12V
= V
= 12V
= V
= 0 to 1mA
= 0 to 1mA
= 0
= 0V
Test Condition
Test Condition
Test Condition
ref
ref
ref
ref
ref
; R
to 40V
o
o
9
= V
= V
4
o
= 1nF
= 10K
o
= V
re
re
= 5A
f
f
ref
j
= 25 C, V
Min.
Min.
Min.
11.4
180
500
15
11
80
75
56
5
5
Typ.
Typ.
Typ.
0.55
200
5.1
1.1
5.1
0.4
0.6
12
10
20
13
85
92
80
87
60
10
20
70
12
50
80
i
2
1
= 35V, R
Max.
Max.
Max.
12.6
220
200
5.2
0.8
1.6
5.2
1.4
50
30
30
50
15
25
40
6
4
= 16K ,
mV/ C
Unit
KHz
Unit
Unit
KHz
mV
mV
mV
mV
mV
mA
mV
mA
dB
%
%
%
%
%
%
V
V
V
V
V
V
A
V
Fig.
Fig.
Fig.
5
5
5
5
5
5
5
5
5
5
5
5
5
7
7
7
7
7
7
7
7
7