DIO7939

The DIO7939 is an ultra low dropout 1.5 A LDO, equipped with NMOS pass transistors and a separate bias supply voltage (VBIAS). The device is suitable for space-constrained, noise-sensitive applications for it provides very stable, accurate output voltage with low noise, noise-sensitive applications.

Product attributes

• Operating input voltage range: (VOUT + VDO) to 4 V
• Operating bias voltage range: 2.5 V to 5.5 V
• Adjustable and fixed voltage version available
• Output voltage range:

0.4 V to 1.8 V (fixed voltage version)

0.5 V to 3.3 V (adjustable voltage version)

• ±1% accuracy at 25°C
• Ultra−low dropout voltage:

43 mV (Typ.) at 1.5 A (WLCSP-6)

110 mV (Typ.) at 1.5 A (DFN2*2-6)

• Very low bias input current of 50 µA (Typ.)
• Very low bias input current in disable mode: 0.5 µA (Typ.)
• Logic level enable input for ON/OFF control
• Quick output discharge resistance: 150 Ω (Typ.)
• Stable with a 10 µF ceramic capacitor
• Available in WLCSP−6 1.2 mm x 0.8 mm, 0.4 mm pitch and DFN2*2-6 packages
• Pb−free, halogen free/BFR free
• RoHS and green compliant.