Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsLD39015M33R

February 2009 Rev 3 1/16

LD39015xx

150 mA low quiescent current

low noise voltage regulator

Features

■ Input voltage from 1.5 to 5.5 V

■ Ultra low dropout voltage (80 mV typ. at 100

mA load)

■ Very low quiescent current (18 µA typ. at no

load, 35 µA typ. at 150 mA load, 1 µA max in off

mode)

■ Very low noise without bypass capacitor

(29 µV

RMS

at V

OUT

= 0.8 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 3.3 V with 100 mV step

■ Logic-controlled electronic shutdown

■ Compatible with ceramic capacitors C

= 1 µF

■ Internal current and thermal limit

■ Available in SOT666 and SOT23-5L packages

■ Temperature range: -40 °C to 125 °C

Description

The LD39015xx series 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 65 dB at low frequencies and starts to

roll off at 10 kHz. Enable logic control function

puts the LD39015xx in shut-down mode allowing

a total current consumption lower than 1 µA. The

device also includes short-circuit constant current

limiting and thermal protection. Typical

applications are mobile phones, personal digital

assistants (PDAs), cordless phones or similar

battery-powered systems.

SOT666

SOT23-5L

Table 1. Device summary

Part numbers

Order codes

Output voltages

SOT666 SOT23-5L

LD39015XX08 LD39015XG08R LD39015M08R 0.8 V

LD39015XX10 LD39015XG10R

(1)

LD39015M10R 1.0 V

LD39015XX12 LD39015XG12R LD39015M12R 1.2 V

LD39015XX125 LD39015M125R 1.25 V

LD39015XX15 LD39015XG15R

(1)

LD39015M15R 1.5 V

LD39015XX18 LD39015XG18R

(1)

LD39015M18R 1.8 V

LD39015XX25 LD39015XG25R

(1)

LD39015M25R 2.5 V

LD39015XX33 LD39015XG33R LD39015M33R 3.3 V

1. Available on request. Other voltages available on request from 0.8 V to 3.3 V in 100 mV step.

www.st.com

Summary of content (16 pages)

PAGE 1
LD39015xx 150 mA low quiescent current low noise voltage regulator Features ■ Input voltage from 1.5 to 5.5 V ■ Ultra low dropout voltage (80 mV typ. at 100 mA load) ■ Very low quiescent current (18 µA typ. at no load, 35 µA typ. at 150 mA load, 1 µA max in off mode) ■ Very low noise without bypass capacitor (29 µVRMS at VOUT = 0.8 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 3.
PAGE 2
Contents LD39015xx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . .
PAGE 3
LD39015xx Diagram 1 Diagram Figure 1. Block diagram OUT IN BandGap 1.
PAGE 4
Pin configuration LD39015xx 2 Pin configuration Figure 2. Pin connection (top view) SOT666 Table 2. SOT23-5L Pin description Pin n° Symbol SOT23-5L 1 3 EN 2 2 GND 3 1 IN 4 5 OUT Output voltage 5 4 NC Not connected NC Not connected 6 4/16 Function SOT666 Enable pin logic input: Low=shutdown, High=active Common ground.
PAGE 5
LD39015xx Typical application 3 Typical application Figure 3.
PAGE 6
Maximum ratings LD39015xx 4 Maximum ratings Table 3. Absolute maximum ratings Symbol VIN Parameter DC input voltage Value Unit -0.3 to 7 V VOUT DC output voltage - 0.3 to VI + 0.3 V VEN Enable input voltage - 0.3 to VI + 0.
PAGE 7
LD39015xx 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. Symbol VIN Electrical characteristics (1) Parameter Test conditions Operating input voltage Min. 1.5 Turn-on threshold VUVLO VOUT Typ. 1.45 Turn-off threshold 1.30 VOUT accuracy 1.35 % VOUT ≤ 1.5V, IOUT = 1mA ±10 VOUT ≤ 1.5V, IOUT = 1mA, -40°C < TJ < 125°C ±30 0.01 %/V 10 mVpp 0.
PAGE 8
Electrical characteristics Table 5. Symbol IEN TON TSHDN COUT LD39015xx Electrical characteristics (continued) (1) Parameter Enable pin input current Turn on time Test conditions Min. VEN = VIN (4) Typ. Max. Unit 0.1 100 nA 30 Thermal shutdown 160 Hysteresis 20 µs °C Output capacitor Capacitance (see typical performance characteristics for stability) 1 22 µF 1. For VOUT(NOM) < 1.2 V, VIN = 1.5 V 2. All transient values are guaranteed by design, not production tested 3.
PAGE 9
LD39015xx Typical performance characteristics Typical performance characteristics Figure 4. Output voltage vs. temperature 0.85 0.84 0.83 0.82 0.81 0.8 0.79 0.78 0.77 0.76 0.75 -50 Figure 5. IOUT=100mA VIN=1.5V 0 50 100 Output voltage vs. input voltage 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 IOUT=1mA VOUT[V] VOUT [V] 6 VIN=1.5V 0 150 1 2 0.05 0.1 0.15 0.2 6 1.5 1.2 STABILITY REGION 0.9 0.6 0.3 0 0 Supply voltage rejection vs. frequency IOUT=1 mA to 0.15 A 1.8 0.25 Figure 9.
PAGE 10
Typical performance characteristics LD39015xx Figure 10. Quiescent current vs. input voltage Figure 11. Load transient 100 Iq [µA] 80 60 40 20 VIN=VINH, CIN=COUT=1µF, IOUT=0.15A 0 1.4 1.9 2.4 2.9 3.4 3.9 4.4 4.9 5.4 5.9 VIN[V] VEN = VIN = 1.5V, IOUT = 1mA to 0.15A, CIN = COUT = 1µF, tr = tf = 5µs Figure 12. Line transient Figure 13. Enable transient VIN = VEN = 1.5 to 5.5V, IOUT = 1mA, COUT = 1µF, tr = tf = 5µs VIN = 1.
PAGE 11
LD39015xx 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
PAGE 12
Package mechanical data LD39015xx SOT23-5L mechanical data mm. mils. Dim. Min. Typ. Max. Min. Typ. Max. A 0.90 1.45 35.4 57.1 A1 0.00 0.10 0.0 3.9 A2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 C 0.09 0.20 3.5 7.8 D 2.80 3.00 110.2 118.1 E 1.50 1.75 59.0 68.8 e 0.95 37.4 H 2.60 3.00 102.3 118.1 L 0.10 0.60 3.9 23.
PAGE 13
LD39015xx Package mechanical data SOT666 mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 0.53 0.57 0.60 0.021 0.022 0.024 A3 0.13 0.17 0.18 0.005 0.006 0.007 D 1.50 1.66 1.70 0.059 0.065 0.067 E 1.50 1.65 1.70 0.059 0.065 0.067 E1 1.10 1.20 1.30 0.043 0.047 0.051 L1 0.11 0.19 0.26 0.004 0.007 0.010 L2 0.10 0.23 0.30 0.004 0.009 0.012 L3 0.05 0.10 0.002 0.004 b 0.17 0.25 b1 0.27 e 0.50 e1 0.20 θ 8° 0.17 0.34 0.25 0.
PAGE 14
Package mechanical data LD39015xx Tape & reel SOT23-xL mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 180 13.0 13.2 Max. 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 14/16 Max. 0.504 0.512 14.4 0.519 0.567 Ao 3.13 3.23 3.33 0.123 0.127 0.131 Bo 3.07 3.17 3.27 0.120 0.124 0.128 Ko 1.27 1.37 1.47 0.050 0.054 0.0.58 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 3.9 4.0 4.1 0.153 0.157 0.
PAGE 15
LD39015xx Revision history 8 Revision history Table 6. Document revision history Date Revision Changes 13-Nov-2007 1 Initial release. 11-Apr-2008 2 Modified: Table 5 on page 7. 12-Feb-2009 3 Modified: Table 1 on page 1.
PAGE 16
LD39015xx Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.