LD39030SJ28R

LD39030SJ 300 mA low quiescent current soft-start, low noise voltage regulator Datasheet - production data Applications • Mobile phones • Personal digital assistants (PDAs) • Cordless phones and similar battery-powered systems • Digital still cameras. Description Flip-chip 4 Features • Input voltage from 1.5 to 5.5 V • Ultra low dropout voltage (200 mV typ. at 300 mA load) • Very low quiescent current (20 μA typ. at no load, 40 μA typ. at 300 mA load, 1 μA max. in off mode) • Very low noise (30 μVRMS from 1 kHz to 100 kHz at VOUT = 1.8 V) The LD39030SJ is a low noise voltage regulator that provides 300 mA maximum current from an input voltage in the 1.5 V to 5.5 V range, with a typical dropout voltage of 200 mV. It is stabilized with a ceramic capacitor on the output. The ultra low drop voltage, low quiescent current, and low noise features make it suitable for low power battery-powered applications. Power supply rejection is typically 62 dB at low frequencies and starts to roll off at 10 kHz. An enable logic control function puts the LD39030SJ in shutdown mode allowing a total current consumption lower than 1 μA. The device also includes a short-circuit constant current limiting and thermal protection. • Output voltage tolerance: ± 2.0 % @ 25 °C Table 1. Device summary • 300 mA guaranteed output current Order codes Output voltages • Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step LD39030SJ10R 1V • Logic-controlled electronic shutdown LD39030SJ12R 1.2 V • Compatible with ceramic capacitor COUT = 1 μF LD39030SJ126R 1.26 V • Internal current and thermal limit LD39030SJ28R 2.8 V • Flip-chip 4 bumps 0.8 x 0.8 mm pitch 0.4 mm LD39030SJ285R 2.85 V • Internal soft-start (typ. 100 μs) LD39030SJ33R 3.3 V • Temperature range: - 40 °C to 125 °C February 2014 This is information on a product in full production. DocID18103 Rev 5 1/18 www.st.com Contents LD39030SJ Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Soft-start function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2/18 DocID18103 Rev 5 LD39030SJ 1 Block diagram Block diagram Figure 1. Block diagram OUT IN BandGap 1.22 V R1 Trimming Thermal Protection R2 Enable EN GND DocID18103 Rev 5 3/18 18 Pin configuration 2 LD39030SJ Pin configuration Figure 2. Pin connection (top view) Table 2. Pin description 4/18 Pin n° Symbol A2 EN A1 GND B2 IN B1 OUT Function Enable pin logic input: low = shutdown, high = active Common ground Input voltage of the LDO Output voltage DocID18103 Rev 5 LD39030SJ 3 Typical application Typical application Figure 3. Typical application circuit VIN IN 1 μF VEN VOUT OUT 1 μF EN Load GND DocID18103 Rev 5 5/18 18 Maximum ratings 4 LD39030SJ Maximum ratings Table 3. Absolute maximum ratings Symbol VIN Parameter DC input voltage Value Unit - 0.3 to 6 V VOUT DC output voltage - 0.3 to VIN + 0.3 V VEN Enable input voltage - 0.3 to VIN + 0.3 V IOUT Output current Internally limited mA Power dissipation Internally limited mW PD TSTG Storage temperature range - 65 to 150 °C TOP Operating junction temperature range - 40 to 125 °C Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. All values are referred to GND. Table 4. Thermal data Symbol RthJA 6/18 Parameter Thermal resistance junction-ambient DocID18103 Rev 5 Value Unit 180 °C/W LD39030SJ 5 Electrical characteristics Electrical characteristics TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Table 5. Electrical characteristics Symbol Parameter VIN Operating input voltage Test conditions (1) Min. Typ. 1.5 Turn-on threshold 1.45 Max. Unit 5.5 V 1.48 V VUVLO Turn-off threshold VOUT VOUT accuracy 1.30 1.35 VOUT >1.5 V, IOUT=1 mA, TJ=25 °C -2.0 2.0 % VOUT >1.5 V, IOUT=1 mA, -40 °C