Product Summary

The L4970A is a high-performance 10A SWITCHING REGULATOR.

Parametrics

L4970A Parametrics:


Packaging Tube
Type Step-Down (Buck)
Output Type Adjustable
Number of Outputs 1
Voltage - Output 5.1 V ~ 40 V
Voltage - Input 15 V ~ 50 V
PWM Type -
Frequency - Switching 200kHz
Current - Output 10A
Synchronous Rectifier No
Operating Temperature 0°C ~ 125°C
Mounting Type Through Hole
Package / Case Multiwatt-15 (Vertical, Bent and Staggered Leads)
Supplier Device Package 15-Multiwatt
Dynamic Catalog Buck (Step-Down) IC
Other Names 497-1410-5

Features

L4970A Features:


  • 10A OUTPUT CURRENT
  • 5.1V TO 40V OUTPUT VOLTAGE RANGE
  • 0 TO 90% DUTY CYCLE RANGE
  • INTERNAL FEED-FORWARD LINE REGULATION
  • INTERNAL CURRENT LIMITING
  • PRECISE 5.1V ± 2% ON CHIP REFERENCE
  • RESET AND POWER FAIL FUNCTIONS
  • SOFT START
  • INPUT/OUTPUT SYNC PIN
  • UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
  • PWM LATCH FOR SINGLE PULSE PER PERIOD
  • VERY HIGH EFFICIENCY
  • SWITCHING FREQUENCY UP TO 500KHz
  • THERMAL SHUTDOWN
  • CONTINUOUS MODE OPERATION


Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
L4970A
L4970A
STMicroelectronics
Switching Converters, Regulators & Controllers 5.1 to 40V Step-Down
Data Sheet
0-1: $6.74
1-10: $6.55
10-100: $6.11
100-250: $5.96
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
L497
L497
Other

Data Sheet
Negotiable 
L4970A
L4970A
STMicroelectronics
Switching Converters, Regulators & Controllers 5.1 to 40V Step-Down
Data Sheet
0-1: $6.74
1-10: $6.55
10-100: $6.11
100-250: $5.96
L4971
L4971
STMicroelectronics
Switching Converters, Regulators & Controllers 3.3 to 50V Step-Down
Data Sheet
0-1: $1.67
1-10: $1.57
10-100: $1.47
100-250: $1.39
L4971D
L4971D
STMicroelectronics
Switching Converters, Regulators & Controllers 3.3 to 50V Step-Down
Data Sheet
0-1: $1.67
1-10: $1.57
10-100: $1.44
100-250: $1.39
L4971D013TR
L4971D013TR
STMicroelectronics
Switching Converters, Regulators & Controllers 3.3 to 50V Step-Down
Data Sheet
0-660: $1.31
660-1000: $1.20
1000-2000: $1.14
2000-5000: $1.07
L4972A
L4972A
STMicroelectronics
Switching Converters, Regulators & Controllers 5.1 to 40V 2.0 Amp
Data Sheet
0-390: $1.83
390-500: $1.73