TL497ACN | Texas Instruments

Voltage regulators, 2.5 V, 1.2 V, 3.5 V

Order No.: 49S7350
MPN:
TL497ACN
TL497ACN Texas Instruments PWM Controller ICs
Image may differ
Unit Price (€ / pc.)
1.8445 € *
Standard delivery time from the manufacturer is: On Request
Total Price:
9.22 € *
Price list
Quantity
Price per unit*
5 pcs.
1.8445 €
10 pcs.
1.6303 €
25 pcs.
1.5113 €
100 pcs.
1.4042 €
250 pcs.
1.2971 €
*incl. VAT plus shipping costs
Subject to prior sale

Voltage regulator, TL497ACN, Texas Instruments

The TL497ACN incorporates all the active functions required in the construction of a switching voltage regulator. It can also be used as the control element to drive an external component for high-power-output applications. The TL497ACN is designed for ease of use in step-up, step-down, or voltage-inversion applications requiring high efficiency.

The TL497ACN is a fixed-on-time variable-frequency switching-voltage-regulator control circuit. The switch-on time is programmed by a single external capacitor connected between FREQ CONTROL and GND. This capacitor, CT, is charged by an internal constant-current generator to a predetermined threshold. The charging current and the threshold vary proportionally with VCC. Thus, the switch-on time remains constant over the specified range of input voltage (4.5 V to 12 V). Typical on times for various values of CT are as follows:

Features

  • Input Current Limit Protection
  • TTL-Compatible Inhibit
  • Soft Start-Up Capability
Technical specifications
Filter Property Value
Enclosure PDIP-14
Assembly THT
Frequency 50 kHz
Input voltage 12 V
min. operating temperature 0 °C
max. operating temperature 70 °C
Logistics
Property Value
Original Packaging Bar with 25 pieces
Country of origin MX
Customs tariff number 85423390
Compliance
Property Value
Substance description Lead
SVHC free No
RoHS conform Yes
Date of RoHS guidelines 3/31/15