L4960 STMicroelectronics, L4960 Datasheet - Page 2

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

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

L4960
ABSOLUTE MAXIMUM RATINGS
PIN FUNCTIONS
2/16
PIN CONNECTION (Top view)
Symbol
N
1
2
3
4
5
6
7
V
T
V
1
j
P
3
, T
V
V
V
I
I
, V
- V
3
5
tot
1
7
2
stg
6
7
Input voltage
Input to output voltage difference
Negative output DC voltage
Negative output peak voltage at t = 0.1 s; f = 100KHz
Voltage at pin 3 and 6
Voltage at pin 2
Pin 3 sink current
Pin 5 source current
Power dissipation at T
Junction and storage temperature
NAME
SUPPLY VOLTAGE
FEEDBACK INPUT
FREQUENCY
COMPENSATION
GROUND
OSCILLATOR
SOFT START
OUTPUT
case
90 C
Parameter
Unregulated voltage input. An internal regulator powers the
internal logic.
The feedback terminal of the regulation loop. The output is
connected directly to this terminal for 5.1V operation; it is
connected via a divider for higher voltages.
A series RC network connected between this terminal and
ground determines the regulation loop gain characteristics.
Common ground terminal.
A parallel RC network connected to this terminal determines the
switching frequency.
Soft start time constant. A capacitor is connected between this
terminal and ground to define the soft start time constant. This
capacitor also determines the average short circuit output
current.
Regulator output.
FUNCTION
-40 to 150
Value
5.5
50
50
20
15
-1
-5
7
1
Unit
mA
mA
W
V
V
V
V
V
V
C