L5973D STMicroelectronics, L5973D Datasheet - Page 4

• Manufacturer Part Number: L5973D
• Description: IC REG SWITCHING STEPDOWN SOIC-8
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5973D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.24 ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 250kHz
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
• Power - Output: 2.25W
• Output Voltage: 35 V
• Output Current: 2.5 A
• Input Voltage: 4 V to 36 V
• Switching Frequency: 212 KHz to 280 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• Current, Input Bias: 2.5 μA
• Current, Output: 300 μA
• Current, Supply: 2.5 mA
• Frequency, Oscillator: 250 kHz
• Package Type: HSOP-8
• Power Dissipation: 2.25 W
• Regulation, Line: 5 mV
• Regulation, Load: 8 mV
• Regulator Type: Low Dropout, Switching
• Temperature, Operating, Range: -40 to +150 °C
• Transconductance: 2.3
• Voltage, Gain: 57 dB
• Voltage, Input: 36 V
• Voltage, Output: 35 V
• Voltage, Output, High: 3.5 V
• Voltage, Output, Low: 0.4 V
• Voltage, Supply: 12 V
• No. Of Pins: 8
• Rohs Compliant: Yes
• Primary Input Voltage: 36V
• No. Of Outputs: 1
• Switching Frequency Max: 250kHz
• Supply Voltage Max: 36V
• Low Dropout Operation: 100 % duty cycle
• For Use With: 497-4134 - EVAL BOARD FOR L5973 SERIES497-4133 - EVAL BOARD FOR L5973 SERIES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical data
2
2.1
2.2
4/17
Electrical data
Maximum ratings
Table 2.
Thermal data
Table 3.
1. Package mounted on board
Symbol
R
Symbol
thJA
V
P
T
4
V
V
V
V
T
STG
TOT
I
, V
1
8
1
3
2
J
5
Maximum thermal resistance junction-ambient
Absolute maximum ratings
Thermal data
Input voltage
Output DC voltage
Output peak voltage at t = 0.1 µs
Maximum output current
Analog pins
INH
SYNC
Power dissipation at T
Operating junction temperature range
Storage temperature range
Parameter
Parameter
A
≤ 60 °C
Exposed Pad
-0.3 V to V
-40 to 150
-55 to 150
int. limit.
-0.3 to 4
-1 to 40
-5 to 40
HSOP8
Value
40
2.25
40
4
(1)
CC
L5973D
°C/W
Unit
Unit
°C
°C
W
V
V
V
V
V