ST LD39015J12R, LD39015JJ13R, LD39015J15R, LD39015J18R, LD39015J28R User Manual

LD39015Jxx

150 mA low quiescent current low noise voltage regulator

Features

■Input voltage from 1.5 to 5.5 V

■Ultra low dropout voltage (90 mV typ. at 100 mA load)

■Very low quiescent current (20 µA typ. at no load, 35 µA typ. at 150 mA load, 1 µA max in off mode)

■Low noise (54 µVRMS from 10 Hz to 100 kHz at VOUT = 1.8 V)

■Output voltage tolerance: ± 2.0% @ 25 °C

■150 mA guaranteed output current

■Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step

■Logic-controlled electronic shutdown

■Compatible with ceramic capacitor COUT = 1 µF

■Internal current and thermal limit

■Flip-chip 4 bumps 1.1 x 1.1 mm.

■Temperature range: -40 °C to 125 °C

Flip-chip 4

74 dB at low frequencies and starts to roll off at 10 kHz. Enable logic control function puts the LD39015Jxx in shut-down mode allowing a total current consumption lower than 1 µA. The device also includes a short-circuit constant current limiting and thermal protection. Typical applications are mobile phones, personal digital assistant (PDAs), cordless phone and similar battery powered systems.

Description

The LD39015Jxx provides 150 mA maximum current from an input voltage ranging from 1.5 V to 5.5 V with a typical dropout voltage of 80 mV. It is stable with ceramic capacitor. 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

Table 1.	Device summary
	Part numbers	Order codes	Output voltages
	LD39015JXX12	LD39015J12R	1.2 V
	LD39015JXX13	LD39015JJ13R	1.3 V
	LD39015JXX15	LD39015J15R	1.5 V
	LD39015JXX18	LD39015J18R	1.8 V
	LD39015JXX28	LD39015J28R	2.8 V
August 2009		Doc ID 15968 Rev 2	1/17
			www.st.com

Contents	LD39015Jxx

Contents

1	Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 3
2	Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 4
3	Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
4	Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
5	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
6	Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9
7	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	11
8	Different output voltage versions of the LD39015Jxx
	available on request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
9	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16

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LD39015Jxx	Diagram

1 Diagram

Figure 1. Block diagram

IN	OUT
	BandGap
	1.22 V
	R1
	Trimming
	Thermal
	R2
	Protection
	Enable
EN
	GND

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Pin configuration	LD39015Jxx

2 Pin configuration

Figure 2. Pin connection (top view)

Table 2.	Pin description
Pin n°		Symbol	Function
A2		EN	Enable pin logic input: Low=shutdown, High=active
A1		GND	Common ground
B2		IN	Input voltage of the LDO
B1		OUT	Output voltage

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LD39015Jxx	Typical application

3 Typical application

Figure 3. Typical application circuit

VIN	IN	OUT		VOUT
1 µF			1 µF	Load

VEN

EN

GND

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Maximum ratings					LD39015Jxx
4	Maximum ratings
Table 3.	Absolute maximum ratings
Symbol		Parameter		Value			Unit
VIN		DC input voltage		- 0.3 to 6			V
VOUT		DC output voltage		- 0.3 to VI + 0.3			V
VEN		Enable input voltage		- 0.3 to VI + 0.3			V
IOUT		Output current		Internally limited			mA
PD		Power dissipation		Internally limited			mW
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		Parameter		Value			Unit
RthJA		Thermal resistance junction-ambient		180			°C/W

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