L4960 STMicroelectronics, L4960 Datasheet

IC REG SW 2.5A VERT HEPTAWATT

L4960

Manufacturer Part Number
L4960
Description
IC REG SW 2.5A VERT HEPTAWATT
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheets

Specifications of L4960

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
5.1 ~ 40 V
Current - Output
2.5A
Frequency - Switching
100kHz ~ 150kHz
Voltage - Input
9 ~ 46 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Through Hole
Package / Case
Heptawatt-7 (Vertical, Bent and Staggered Leads)
Power - Output
15W
Output Voltage
40 V
Output Current
2.5 A
Input Voltage
9 V to 46 V
Switching Frequency
150 KHz
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Duty Cycle (max)
100 %
Current, Input Bias
2 μA
Current, Output
2.5 A
Frequency, Oscillator
100 kHz
Package Type
Heptawatt Vertical
Power Dissipation
15 W
Regulation, Line
15 mV
Regulation, Load
10 mV
Regulator Type
Switching
Resistance, Thermal, Junction To Case
4 °C/W
Temperature, Operating, Range
-40 to +150 °C
Voltage, Dropout
1.4 V
Voltage, Gain
55 dB
Voltage, Input
46 V
Voltage, Output
40 V
Voltage, Output, High
3.5 V
Voltage, Output, Low
0.5 V
Voltage, Supply, Rejection Ratio
56 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1406-5

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DESCRIPTION
The L4960 is a monolithic power switching regula-
tor delivering 2.5A at a voltage variable from 5V to
40V in step down configuration.
Features of the device include current limiting, soft
start, thermal protection and 0 to 100% duty cycle
for continuous operation mode.
BLOCK DIAGRAM
2.5A OUTPUT CURRENT
5.1V TO 40V OPUTPUT VOLTAGE RANGE
PRECISE ( 2%) ON-CHIP REFERENCE
HIGH SWITCHING FREQUENCY
VERY HIGH EFFICIENCY (UP TO 90%)
VERY FEW EXTERNAL COMPONENTS
SOFT START
INTERNAL LIMITING CURRENT
THERMAL SHUTDOWN
®
2.5A POWER SWITCHING REGULATOR
The L4960 is mounted in a Heptawatt plastic power
package and requires very few external compo-
nents.
Efficient operation at switching frequencies up to
150KHz allows a reduction in the size and cost of
external filter components.
ORDERING NUMBERS: L4960 (Vertical)
HEPTAWATT
L4960H (Horizontal)
L4960
1/16

Related parts for L4960

L4960 Summary of contents

Page 1

... BLOCK DIAGRAM 2.5A POWER SWITCHING REGULATOR ORDERING NUMBERS: L4960 (Vertical) The L4960 is mounted in a Heptawatt plastic power package and requires very few external compo- nents. Efficient operation at switching frequencies up to 150KHz allows a reduction in the size and cost of external filter components ...

Page 2

... L4960 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol V Input voltage Input to output voltage difference Negative output DC voltage 7 Negative output peak voltage 0 100KHz Voltage at pin 3 and Voltage at pin Pin 3 sink current 3 I Pin 5 source current 5 P Power dissipation at T tot Junction and storage temperature ...

Page 3

... ref 12V rms = 100Hz fripple ref 46V 125 ref o Value max 4 max 35V, unless otherwise i Min. Typ. Max ref 5.1 5.2 0.4 1.4 3 2 100 115 0.5 1 120 150 150 L4960 Unit C/W C/W Unit mV KHz % % KHz C 3/16 ...

Page 4

... L4960 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter DC CHARACTERISTICS I Quiescent drain current 1Q -I Output leakage current 7L SOFT START I Source current 6SO I Sink current 6SI ERROR AMPLIFIER V High level output voltage 3H V Low level output voltage 3L I Sink output current 3SI -I Source output current ...

Page 5

... L4960 mm DIM. MIN. TYP. MAX. A 4.8 C 1.37 D 2.4 2.8 0.094 D1 1.2 1.35 0.047 E 0.35 0.55 0.014 E1 0.7 0.97 0.028 F 0.6 0.8 0.024 F1 0.9 G 2.34 2.54 2.74 0.095 G1 4.88 5.08 5.28 0.193 G2 7.42 7.62 7.82 0.295 H2 10.4 H3 10.05 10.4 0.396 L 16.7 16.9 17 ...

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