Product Summary

The KF25BD-TR is a very low drop regulator available in SO-8 package and in a wide range of output voltages. The very low drop voltage (0.4 V) and the very low quiescent current make the KF25BD-TR particularly suitable for low noise, low power applications and specially in battery powered systems. A shutdown logic control function is available (pin 5, TTL compatible). This means that when the KF25BD-TR is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 μF capacitor for stability allowing space and cost saving.

Parametrics

KF25BD-TR absolute maximum ratings: (1)VI DC input voltage: -0.5 to 20 V; (2)IO Output current: Internally Limited; (3)PTOT Power dissipation: Internally Limited; (4)TSTG Storage temperature range: -40 to 150 ℃; (5)TOP Operating junction temperature range: -40 to 125 ℃; (6)IO Output current limit: 1 A; (7)II Control input current VI = 6 V, VC = 6 V: 10 μA; (8)CO Output bypass capacitance ESR = 0.1 to 10 Ω, IO = 0 to 500 mA: 2 to 10 μF.

Features

KF25BD-TR features: (1)Very low dropout voltage (0.4 V); (2)Very low quiescent current (typ. 50 μA in OFF Mode, 500 μA in ON Mode); (3)Output current up to 500 mA; (4)Logic-controlled electronic shutdown; (5)Output voltages of 1.5; 2.5; 3; 3.3; 4; 5; 5.2; 6; 8; (6)Internal current and thermal limit; (7)Only 2.2 μF for stability; (8)Available in ± 2 % accuracy at 25 ℃; (9)Supply voltage rejection: 70 db (typ.); (10)Temperature range: -40 to 125 ℃.

Diagrams

KF25BD-TR pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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KF25BD-TR
KF25BD-TR

STMicroelectronics

Low Dropout (LDO) Regulators 2.5V 0.5A Positive

Data Sheet

0-1: $0.59
1-10: $0.52
10-100: $0.41
100-250: $0.36
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
KF25BD
KF25BD

Other


Data Sheet

Negotiable 
KF25BD-TR
KF25BD-TR

STMicroelectronics

Low Dropout (LDO) Regulators 2.5V 0.5A Positive

Data Sheet

0-1: $0.59
1-10: $0.52
10-100: $0.41
100-250: $0.36
KF25BDT-TR
KF25BDT-TR

STMicroelectronics

Low Dropout (LDO) Regulators 2.5V 0.5A Positive

Data Sheet

0-1: $0.60
1-25: $0.48
25-100: $0.42
100-250: $0.37
KF25B
KF25B

Other


Data Sheet

Negotiable