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ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsL5150BNTR

September 2013 Doc ID 15541 Rev 9 1/20

L5150BN

5 V low dropout voltage regulator

Features

■ Operating DC supply voltage range

5.6 V to 40 V

■ Low dropout voltage

■ Low quiescent current

■ Precison output voltage 5 V ±2%

■ Very wide stability range with low value output

capacitor

■ Thermal shutdown and short-circuit protection

■ Wide temperature range (T

= -40 °C to 150 °C)

Description

L5150BN is a low dropout linear 5 V regulator

particularly suitable for automotive applications.

High output voltage accurancy (2%) is kept over

wide temperature range line and load variation.

Its sophisticated design allows to have extremely

low quiescent current.

The maximum input voltage is 40 V.

The regulator output current is internally limited

and the device is protected against short-circuit,

overload and overtemperature conditions. In

addition, only low-value ceramic capacitor on

output is required for stability.

Max DC supply voltage V

40 V

Max output voltage tolerance V

±2%

Max dropout voltage V

500 mV

Output current I

150 mA

Quiescent current I

50 µA

(1)

1. Typical value.

SOT-223



'!0'03

Table 1. Device summary

Package

Order codes

Tube Tape & reel

SOT-223 L5150BN L5150BNTR

www.st.com

Summary of content (20 pages)

PAGE 1
L5150BN 5 V low dropout voltage regulator Features Max DC supply voltage VS 40 V Max output voltage tolerance Vo ±2% Max dropout voltage Vdp 500 mV Output current I0 150 mA Quiescent current Iq 50 µA(1) '!0'03 SOT-223 1. Typical value. Description ■ Operating DC supply voltage range 5.
PAGE 2
Contents L5150BN Contents 1 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . .
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L5150BN List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of figures L5150BN List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. 4/20 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Output voltage vs. Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 5
L5150BN 1 Block diagram and pins description Block diagram and pins description Figure 1. Block diagram 9R 9V 67$57 83 3RZHU 'ULYHU 9 9ROWDJH 5HIHUHQFH *1' 7KHUPDO 6KXWGRZQ &XUUHQW /LPLWHU *$3*36 Table 2. Pins description(1) N° Pin name 1 VS 2 GND 3 Vo Function Supply voltage, block directly to GND on the IC with a capacitor. Ground reference 5 V regulated output. Block to GND with a ceramic capacitor (C0 > 220 nF for regulator stability) 1.
PAGE 6
Electrical specifications L5150BN 2 Electrical specifications 2.1 Absolute maximum ratings Stressing the device above the rating listed in the Table 3: Absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
PAGE 7
L5150BN 2.3 Electrical specifications Electrical characteristics Values specified in this section are for VS = 5.6 V to 31 V, Tj = -40 °C to +150 °C unless otherwise stated. Table 5. General Pin Symbol Min. Typ. Vo Vo_ref Output voltage VS = 8 V to 18 V, Io = 8 mA to 150 mA 4.9 5.0 5.1 V Vo Vo_ref Output voltage VS = 5.6 V to 31 V, Io = 8 mA to 150 mA 4.85 5.0 5.15 V Vo Vo_ref Output voltage VS = 5.6 V to 31 V, Io = 0.1 mA to 8 mA 4.75 5.0 5.
PAGE 8
Electrical specifications L5150BN 2.4 Electrical characteristics curves Figure 2. Output voltage vs. Tj Figure 3. Output voltage vs. VS 9R UHI 9 6O?REF 6 )O M! 6S 6 ,R P$ 7F & 9 6 9 4J # *$3*&)7 '!0'#&4 Figure 5. Figure 4. Current consumption vs. output current Drop voltage vs.
PAGE 9
L5150BN Electrical specifications Figure 8. Current consumption vs. input voltage (Io = 75 mA) Figure 9. )QN M! Current limitation vs. Tj )LIM M! 6S 6 4J # 6S 6 '!0'#&4 '!0'#&4 Figure 10. Current limitation vs. input voltage Figure 11. Short-circuit current vs.
PAGE 10
Electrical specifications 2.5 L5150BN Application information The voltage regulator uses a p-channel mos transistor as a regulating element. With this structure a very low dropout voltage at current up to 150 mA is obtained. The output voltage is regulated up to input supply voltage of 40 V. The high-precision of the output voltage (2%) is obtained with a pre-trimmed reference voltage. The voltage regulator automatically adapts its own quiescent current to the output current level.
PAGE 11
L5150BN Electrical specifications Figure 15. Stability region (65 2KP 67$%,/,7< 5(*,21 (65PLQ 817(67(' 5(*,21 &R ) *$3*36 Note: The curve which describes the minimum ESR is derived from characterization data on the regulator with connected ceramic capacitors which feature low ESR values (at 100 kHz).
PAGE 12
Package and PCB thermal data L5150BN 3 Package and PCB thermal data 3.1 SOT-223 thermal data Figure 17. SOT-223 PC board . '!0'03 Note: Layout condition of Rth and Zth measurements (PCB: double layer, FR4 area= 58 mm x 58 mm, PCB thickness = 2 mm, Cu thickness = 35 µm (front and back side), footprint dimension 4.1 mm x 6.5 mm ). Figure 18. Rthj-amb vs. PCB copper area in open box free air condition 57+MBDPE .
PAGE 13
L5150BN Package and PCB thermal data Figure 19. SOT-223 thermal impedance junction ambient single pulse =7+ . : &X IRRWSULQW &X F P 7LPH V *$3*36 Equation 1: pulse calculation formula Z TH = R TH +Z THtp 1 –  where  = tP/T Figure 20.
PAGE 14
Package and PCB thermal data Table 6. 14/20 L5150BN SOT-223 thermal parameter Area (cm2) Footprint R1 (°K/W) 1.53 R2 (°K/W) 3.21 R3 (°K/W) 5.2 R4 (°K/W) 24 R5 (°K/W) 0.1 R6 (°K/W) 100 C1 (W.s/°K) 0.00004 C2 (W.s/°K) 0.0003 C3 (W.s/°K) 0.03 C4 (W.s/°K) 0.16 C5 (W.s/°K) 1000 C6 (W.s/°K) 0.
PAGE 15
L5150BN Package and packing information 4 Package and packing information 4.1 ECOPACK® 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. 4.2 SOT-223 mechanical data Figure 21.
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Package and packing information Table 7. L5150BN SOT-223 mechanical data mm. inch DIM. Min. Typ. A Max. Typ. 1.8 Max. 0.071 B 0.6 0.7 0.85 0.024 0.027 0.033 B1 2.9 3 3.15 0.114 0.118 0.124 c 0.24 0.26 0.35 0.009 0.01 0.014 D 6.3 6.5 6.7 0.248 0.256 0.264 e 2.3 0.09 e1 4.6 0.181 E 3.3 3.5 3.7 0.13 0.138 0.146 H 6.7 7 7.3 0.264 0.276 0.287 V A1 16/20 Min. 10 (max) 0.02 0.1 Doc ID 15541 Rev 9 0.0008 0.
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L5150BN 4.3 Package and packing information SOT-223 packing information Figure 22. SOT-223 tape and reel shipment (suffix “TR”) MM MIN !CCESS HOLE AT SLOT LOCATION # " ! 5HHO GLPHQVLRQV 4 $ .
PAGE 18
Revision history 5 L5150BN Revision history Table 8. 18/20 Document revision history Date Revision Changes 18-Jun-2007 1 Initial release. 14-May-2008 2 Corrected Table 2: Pins description : inverted 1 and 3 pins descriptions. Updated Table 5: General : – Vo_ref parameter: updated test conditions and values. – Vline and Vshort : updated test condition – Ishort: changed values from 0.65/0.95/1.25 to 0.65/1.10/1.45 (Min/Typ/Max) – Ilim: changed values from 0.7/1/1.30 to 0.28/0.45/0.
PAGE 19
L5150BN Revision history Table 8.
PAGE 20
L5150BN 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.