| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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4,181 pcs
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4181 pcs | On Request | 1 | On Request | On Request | 1430+ | On Request | On Request |
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The A4405KLPTR-T from Allegro Microsystems is an automotive power management IC designed for high-temperature environments, ideal for under-hood applications. It utilizes a high-frequency constant on-time buck pre-regulator to efficiently supply two internal 5V linear regulators and a 3.3V linear DMOS driver, making it suitable for CAN and microprocessor power supplies.
This device operates with an input voltage range of 5.5V to 36V (50V maximum for surges) and features a nominal switching frequency of 2.2 MHz. The A4405KLPTR-T offers four outputs, including 5V (V5P and V5) and 3.3V (V33) regulators. Protection features include undervoltage lockout, thermal shutdown, and overcurrent protection on all regulators. The V5P output is also protected from short-to-battery events.
Packaged in a 20-pin TSSOP with an exposed thermal pad, the A4405KLPTR-T is designed for surface mounting. Its operating temperature range is -40°C to 150°C (TJ), with a maximum junction temperature of 175°C. The high switching frequency allows for the use of small inductors and ceramic capacitors, helping to avoid EMI in the AM frequency band.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 5.5V to 36V, with an absolute maximum rating of 50V for surges.
The switching frequency is 2.2 MHz.
It has 4 outputs: one step-down (buck) regulator and three linear (LDO) regulators.
The buck regulator provides 5V, and the LDOs provide 5V and 3.3V.
The junction temperature range is -40°C to 150°C, with a maximum junction temperature of 175°C.
The package is 20-TSSOP-EP (20-TSSOP with exposed pad).
It is surface mount.