LD1085D2M50TR - STMicroelectronics, Inc.

June 2007 Rev. 18 1/27

LD1085 series

3A Low drop positive voltage regulator adjustable and fixed

Features

■Typical dropout 1.3V (at 3A)

■Three terminal adjustable or fixed output

voltage 1.5V, 1.8V, 2.5V, 3.3V, 5V, 12V.

■Guaranteed output current up to 3A

■Output tolerance ±1% at 25°C and ±2% in full

temperature range

■Internal power and thermal limit

■Wide operating temperature range -40°C to

125°C

■Package available: TO-220, TO-220FP,

DPAK, D2PAK, D2PAK/A

■Pinout compatibility with standard adjustable

VREG

Description

The LD1085 is a LOW DROP Voltage Regulator

able to provide up to 3A of Output Current.

Dropout is guaranteed at a maximum of 1.2V at

the maximum output current, decreasing at lower

loads. The LD1085 is pin to pin compatible with

the older 3-terminal adjustable regulators, but has

better performances in term of drop and output

tolerance.

A 2.85V output version is suitable for SCSI-2

active termination. Unlike PNP regulators, where

a part of the output current is wasted as quiescent

current, the LD1085 quiescent current flows into

the load, so increase efficiency. Only a 10µF

minimum capacitor is need for stability.

The device is supplied in TO-220, TO-220FP,

DPAK, D2PAK and D2PAK/A. On chip trimming

allows the regulator to reach a very tight output

voltage tolerance, within ±1% at 25°C.

TO-220FP

D2PAK/A

TO-220

D2PAKDPAK

www.st.com

Schematic diagram

LD1085 series

2/27

Contents

1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

LD1085 series Pin configuration

3/27

1 Pin configuration

Figure 1. Pin connections (top view)

TO-220FP

D2PAK/A

TO-220

DPAK

D2PAK

Maximum ratings LD1085 series

4/27

2 Maximum ratings

Note: Absolute Maximum Ratings are those values beyond which damage to the device may

occur. Functional operation under these condition is not implied

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

VIDC Input voltage 30 V

IOOutput current Internally Limited mA

PDPower dissipation Internally Limited mW

TSTG Storage temperature range -55 to +150 °C

TOP Operating junction temperature range -40 to +125 °C

Table 2. Thermal Data

Symbol Parameter TO-220 DPAK D2PAK

D2PAK/A Unit

RthJC Thermal resistance junction-case 3 8 3 °C/W

RthJA Thermal resistance junction-ambient 50 100 62.5 °C/W

LD1085 series Schematic application

5/27

3 Schematic application

Figure 2. Application circuit

VOVREF 1R2

-------+

⎝⎠

⎛⎞

⋅=

Electrical characteristics LD1085 series

6/27

4 Electrical characteristics

Table 3. Electrical characteristics of LD1085#15

(VI=4.5V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1)

1. See short-circuit current curve for available output current at fixed dropout.

IO = 0 mA, TJ = 25°C 1.485 1.5 1.515 V

IO = 0 to 3A, VI = 3.1 to 30V 1.47 1.5 1.53 V

ΔVOLine Regulation IO = 0 mA, VI = 3.1 to 18V, TJ = 25°C 0.2 4 mV

IO = 0 mA, VI = 3.1 to 15V 0.4 4 mV

ΔVOLoad Regulation IO = 0 to 3A, TJ = 25°C 2 10 mV

IO = 0 to 3A 4 20 mV

VdDropout Voltage IO =3 A 1.3 1.5 V

IqQuiescent Current VI ≤ 30V 5 10 mA

Isc Short Circuit Current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal Regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply Voltage Rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 7.5 ± 3V 60 72 dB

eN RMS Output Noise Voltage (%

of VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature Stability 0.5 %

S Long Term Stability TA = 125°C, 1000Hrs 0.5 %

LD1085 series Electrical characteristics

7/27

Table 4. Electrical characteristics of LD1085#18

(VI=4.8V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 0 mA, TJ = 25°C 1.782 1.8 1.818 V

IO = 0 to 3A, VI = 3.4 to 30V 1.764 1.8 1.836 V

ΔVOLine Regulation IO = 0 mA, VI = 3.4 to 18V TJ = 25°C 0.2 4 mV

IO = 0 mA, VI = 3.4 to 15V 0.4 4 mV

ΔVOLoad Regulation IO = 0 to 3A, TJ = 25°C 2 10 mV

IO = 0 to 3A 4 20 mV

VdDropout Voltage IO = 3 A 1.3 1.5 V

IqQuiescent Current VI ≤ 30V 5 10 mA

Isc Short Circuit Current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal Regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply Voltage Rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 7.5 ± 3V 60 72 dB

eN RMS Output Noise Voltage (%

of VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature Stability 0.5 %

S Long Term Stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

Electrical characteristics LD1085 series

8/27

Table 5. Electrical characteristics of LD1085#25

(VI=5.5V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 0 mA, TJ = 25°C 2.475 2.5 2.525 V

IO = 0 to 3A, VI = 4.1 to 30V 2.45 2.5 2.55 V

ΔVOLine regulation IO = 0 mA, VI = 4.1 to 18V, TJ = 25°C 0.2 4 mV

IO = 0 mA, VI = 4.1 to 18V 0.4 4 mV

ΔVOLoad regulation IO = 0 to 3A, TJ = 25°C 2 10 mV

IO = 0 to 3A 4 20 mV

VdDropout voltage IO = 3A 1.3 1.5 V

IqQuiescent current VI ≤ 30V 5 10 mA

Isc Short circuit current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 7.5 ± 3V 60 72 dB

eN RMS Output noise voltage (% of

VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature stability 0.5 %

S Long term stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

LD1085 series Electrical characteristics

9/27

Table 6. Electrical characteristics of LD1085#33

(VI=6.3V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 0 mA, TJ = 25°C 3.267 3.3 3.333 V

IO = 0 to 3A, VI = 4.9 to 30V 3.234 3.35 3.366 V

ΔVOLine regulation IO = 0 mA, VI = 4.9 to 18V, TJ = 25°C 0.5 6 mV

IO = 0 mA, VI = 4.9 to 18V 1 6 mV

ΔVOLoad regulation IO = 0 to 3A, TJ = 25°C 3 15 mV

IO = 0 to 3A 7 20 mV

VdDropout voltage IO = 3A 1.3 1.5 V

IqQuiescent current VI ≤ 30V 5 10 mA

Isc Short circuit current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 8.3 ± 3V 60 72 dB

eN RMS Output noise voltage (% of

VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature stability 0.5 %

S Long term stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

Electrical characteristics LD1085 series

10/27

Table 7. Electrical characteristics of LD1085#50

(VI=8V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 0 mA, TJ = 25°C 4.95 5 5.05 V

IO = 0 to 3A, VI = 6.6 to 30V 4.9 5 5.1 V

ΔVOLine regulation IO = 0 mA, VI = 6.6 to 20V, TJ = 25°C 0.5 10 mV

IO = 0 mA, VI = 6.6 to 20V 1 10 mV

ΔVOLoad regulation IO = 0 to 3A, TJ = 25°C 5 10 mV

IO = 0 to 3A 10 35 mV

VdDropout voltage IO = 3A 1.3 1.5 V

IqQuiescent current VI ≤ 30V 5 10 mA

Isc Short circuit current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 10 ± 3V 60 72 dB

eN RMS Output noise voltage (% of

VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature stability 0.5 %

S Long term stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

LD1085 series Electrical characteristics

11/27

Table 8. Electrical characteristics of LD1085#12

(VI=15V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 0 mA, TJ = 25°C 11.88 12 12.12 V

IO = 0 to 3A, VI = 13.8 to 30V 11.76 12 12.24 V

ΔVOLine regulation

IO = 0 mA, VI = 13.8 to 25V,

TJ = 25°C 125mV

IO = 0 mA, VI = 13.8 to 25V 2 25 mV

ΔVOLoad regulation IO = 0 to 3A, TJ = 25°C 12 36 mV

IO = 0 to 3A 24 72 mV

VdDropout voltage IO = 3A 1.3 1.5 V

IqQuiescent current VI ≤ 30V 5 10 mA

Isc Short circuit current VI - VO = 5V 3.2 4.5 A

VI - VO = 25V 0.2 0.5 A

Thermal regulation TA = 25°C, 30ms pulse 0.008 0.04 %/W

SVR Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 3A

VI = 17 ± 3V 54 66 dB

eN RMS Output noise voltage (% of

VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature stability 0.5 %

S Long term stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

Electrical characteristics LD1085 series

12/27

Table 9. Electrical characteristics of LD1085#

(VI=4.25V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Symbol Parameter Test Min. Typ. Max. Unit

VOOutput voltage (1) IO = 10mA TJ = 25°C 1.237 1.25 1.263 V

IO = 10mA to 3A, VI = 2.85 to 30V 1.225 1.25 1.275 V

ΔVOLine Regulation

IO = 10mA, VI = 2.85 to 16.5V,

TJ = 25°C 0.015 0.2 %

IO = 10mA, VI = 2.85 to 16.5V 0.035 0.2 %

ΔVOLoad Regulation IO = 10mA to 3A, TJ = 25°C 0.1 0.3 %

IO = 0 to 3A 0.2 0.4 %

VdDropout Voltage IO = 3A 1.3 1.5 V

IO(min) Minimum Load Current VI = 30V 3 10 mA

Isc Short Circuit Current VI - VO = 5V 5.5 6.5 A

VI - VO = 25V 0.5 0.7 A

Thermal Regulation TA = 25°C, 30ms pulse 0.003 0.015 %/W

SVR Supply Voltage Rejection f = 120 Hz, CO = 25µF,CADJ = 25 µF,

IO = 3A, VI = 6.25 ± 3V 60 72 dB

IADJ Adjust Pin Current VI = 4.25V, IO = 10 mA 55 120 μA

ΔIADJ Adjust Pin Current Change (1) IO = 10mA to 3A, VI = 2.85 to 16.5V 0.2 5 μA

eN RMS Output Noise Voltage (%

of VO)TA = 25°C, f =10Hz to 10KHz 0.003 %

S Temperature Stability 0.5 %

S Long Term Stability TA = 125°C, 1000Hrs 0.5 %

1. See short-circuit current curve for available output current at fixed dropout.

LD1085 series Typical application

13/27

5 Typical application

(Unless otherwise specified TJ = 25°C, CI = CO = 10µF)

Figure 3. Output voltage vs temperature Figure 4. Output voltage vs temperature

Figure 5. Output voltage vs temperature Figure 6. Short circuit current vs dropout

voltage

Figure 7. Line regulation vs temperature Figure 8. Load regulation vs temperature

Typical application LD1085 series

14/27

Figure 9. Dropout voltage vs temperature Figure 10. Dropout voltage vs output current

Figure 11. Adjust pin current vs temperature Figure 12. Quiescent current vs temperature

Figure 13. Line regulation vs temperature Figure 14. Supply voltage rejection vs output

current

LD1085 series Typical application

15/27

Figure 15. Supply voltage rejection vs

frequency

Figure 16. Supply voltage rejection vs

temperature

Figure 17. Minimum load current vs

temperature

Figure 18. Stability

Figure 19. Stability Figure 20. Line transient

VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant),

CADJ=1µF

Typical application LD1085 series

16/27

Figure 21. Line transient Figure 22. Load transient

VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant),

CADJ=1µF

VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant),

CADJ=1µF

Figure 23. Load transient

VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant),

CADJ=1µF

LD1085 series Package mechanical data

17/27

6 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a Lead-free second level interconnect. The category of

second Level Interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

Package mechanical data LD1085 series

18/27

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181

C 1.23 1.32 0.048 0.051

D 2.40 2.72 0.094 0.107

D1 1.27 0.050

E 0.49 0.70 0.019 0.027

F 0.61 0.88 0.024 0.034

F1 1.14 1.70 0.044 0.067

F2 1.14 1.70 0.044 0.067

G 4.95 5.15 0.194 0.203

G1 2.4 2.7 0.094 0.106

H2 10.0 10.40 0.393 0.409

L2 16.4 0.645

L4 13.0 14.0 0.511 0.551

L5 2.65 2.95 0.104 0.116

L6 15.25 15.75 0.600 0.620

L7 6.2 6.6 0.244 0.260

L9 3.5 3.93 0.137 0.154

DIA. 3.75 3.85 0.147 0.151

TO-220 MECHANICAL DAT

P011C

LD1085 series Package mechanical data

19/27

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181

B 2.5 2.7 0.098 0.106

D 2.5 2.75 0.098 0.108

E 0.45 0.70 0.017 0.027

F 0.75 1 0.030 0.039

F1 1.15 1.50 0.045 0.059

F2 1.15 1.50 0.045 0.059

G 4.95 5.2 0.194 0.204

G1 2.4 2.7 0.094 0.106

H 10.0 10.40 0.393 0.409

L2 16 0.630

L3 28.6 30.6 1.126 1.204

L4 9.8 10.6 0.385 0.417

L5 2.9 3.6 0.114 0.142

L6 15.9 16.4 0.626 0.645

L7 9 9.3 0.354 0.366

DIA. 3 3.2 0.118 0.126

TO-220FP MECHANICAL DATA

7012510A-H

Package mechanical data LD1085 series

20/27

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 2.2 2.4 0.086 0.094

A1 0.9 1.1 0.035 0.043

A2 0.03 0.23 0.001 0.009

B 0.64 0.9 0.025 0.035

b4 5.2 5.4 0.204 0.212

C 0.45 0.6 0.017 0.023

C2 0.48 0.6 0.019 0.023

D 6 6.2 0.236 0.244

D1 5.1 0.200

E 6.4 6.6 0.252 0.260

E1 4.7 0.185

e 2.28 0.090

e1 4.4 4.6 0.173 0.181

H 9.35 10.1 0.368 0.397

L 1 0.039

(L1) 2.8 0.110

L2 0.8 0.031

L4 0.6 1 0.023 0.039

R 0.2 0.008

V2 0° 8° 0° 8°

DPAK MECHANICAL DATA

0068772-F

LD1085 series Package mechanical data

21/27

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.4 4.6 0.173 0.181

A1 2.49 2.69 0.098 0.106

A2 0.03 0.23 0.001 0.009

B 0.7 0.93 0.027 0.036

B2 1.14 1.7 0.044 0.067

C 0.45 0.6 0.017 0.023

C2 1.23 1.36 0.048 0.053

D 8.95 9.35 0.352 0.368

D1 8 0.315

E 10 10.4 0.393 0.409

E1 8.5 0.335

G 4.88 5.28 0.192 0.208

L 15 15.85 0.590 0.624

L2 1.27 1.4 0.050 0.055

L3 1.4 1.75 0.055 0.068

M 2.4 3.2 0.094 0.126

R 0.4 0.016

V2 0˚ 8˚ 0˚ 8˚

PAK MEC

HANICAL DATA

P011P6G

Package mechanical data LD1085 series

22/27

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181

A1 2.49 2.69 0.098 0.106

A2 0.03 0.23 0.001 0.009

B 0.7 0.93 0.028 0.037

B1 0.8 1.3 0.031 0.051

B2 1.14 1.7 0.045 0.067

C 0.45 0.60 0.018 0.024

C2 1.23 1.36 0.048 0.054

D 8.95 9.35 0.352 0.368

D1 8 0.315

E 10 10.4 0.394 0.409

E1 8.5 0.335

G 4.88 5.28 0.192 0.208

L 15 15.85 0.591 0.624

L2 1.27 1.4 0.050 0.055

M 2.4 3.2 0.094 0.126

R 0.4 0.016

V2 0° 8° 0° 8°

D2PAK/A MECHANICAL DATA

7106164/D

LD1085 series Package mechanical data

23/27

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992

C 12.8 13.0 13.2 0.504 0.512 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882

Ao 6.80 6.90 7.00 0.268 0.272 0.2.76

Bo 10.40 10.50 10.60 0.409 0.413 0.417

Ko 2.55 2.65 2.75 0.100 0.104 0.105

Po 3.9 4.0 4.1 0.153 0.157 0.161

P 7.9 8.0 8.1 0.311 0.315 0.319

Tape & Reel DPAK-PPAK MECHANICAL DATA

Package mechanical data LD1085 series

24/27

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 180 7.086

C 12.8 13.0 13.2 0.504 0.512 0.519

D 20.2 0.795

N 60 2.362

T 14.4 0.567

Ao 10.50 10.6 10.70 0.413 0.417 0.421

Bo 15.70 15.80 15.90 0.618 0.622 0.626

Ko 4.80 4.90 5.00 0.189 0.193 0.197

Po 3.9 4.0 4.1 0.153 0.157 0.161

P 11.9 12.0 12.1 0.468 0.472 0.476

pe & Reel D

PAK-P

PAK-D

PAK/A-P

PAK/A MECHANICAL DATA

LD1085 series Order codes

25/27

7 Order codes

Table 10. Order codes

Part numbers

Packages Output

voltage

TO-220 TO-220FP D2PAK DPAK (T&R) D2PAK/A D2PAK/A (T&R)

LD1085DT15R 1.5 V

LD1085V18 LD1085DT18R LD1085D2M18R 1.8 V

LD1085V25 LD1085DT25R LD1085D2M25R 2.5 V

LD1085V33 LD1085D2T33 LD1085DT33R LD1085D2M33R 3.3 V

LD1085V50 LD1085D2M50 5.0 V

LD1085V12 LD1085D2M12 LD1085D2M12R 12.0 V

LD1085V LD1085P LD1085D2T LD1085DT-R LD1085D2M LD1085D2M-R ADJ

LD1085CDT-R ADJ

Revision history LD1085 series

26/27

8 Revision history

Table 11. Revision history

Date Revision Changes

07-Oct-2004 12 Mistake Order Codes - Table 1.

08-Feb-2005 13 Mistake U.M. Load Regulation - V ==> mV.

01-Mar-2005 14 Version 1.2V removed.

22-May-2006 15 Order Codes has been updated and new template.

10-Nov-2006 16 Add package DPAK, typo on VO test value in tables 3, 4 and 11.

04-Apr-2007 17 Order codes has been updated.

07-Jun-2007 18 Order codes has been updated.

LD1085 series

27/27

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.

Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no

liability whatsoever relating to the choice, selection or use of the ST products and services described herein.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this

document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products

or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such

third party products or services or any intellectual property contained therein.

UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED

WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED

WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS

OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.

UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT

RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING

APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,

DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE

GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.

Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void

any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any

liability of ST.

ST and the ST logo are trademarks or registered trademarks of ST in various countries.

Information in this document supersedes and replaces all information previously supplied.

The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.

STMicroelectronics group of companies

Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -

Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America

www.st.com

About ST Products Applications Support Buy News & Events ST Worldwide Contact Us Login

search the site

Part Number Search

Search For Part #:

LD1085DT33R

Example: *74*00*

Matching Documents: 1 - 1 of 1

Generic Part Number(s) Orderable Part Number(s) Status

Product

Page/

Datasheet

Description

LD1085XX33 LD1085DT33R NRND 3A Low drop positive voltage regulator adjustable and fixed

Power Management|Linear Regulators|Low Dropout

Search time: 0.082s

e 1 of 1STMicroelectronics

Part Number Search

27-Au

-2007mhtml:file://C:\TEMP\SGST\LD1085DT33R.mht