IC REG LDO 3.3V 1.5A LN 8SOIC

 

LT1963ES8-3.3

Manufacturer Part NumberLT1963ES8-3.3
DescriptionIC REG LDO 3.3V 1.5A LN 8SOIC
ManufacturerLinear Technology
LT1963ES8-3.3 datasheets

Availability: In stock

International delivery:

Warranty: 60 days

Shipping & payment terms

Added to cart

 

Specifications of LT1963ES8-3.3

Regulator TopologyPositive FixedVoltage - Output3.3V
Voltage - InputUp to 20VVoltage - Dropout (typical)0.34V @ 1.5A
Number Of Regulators1Current - Output1.5A
Current - Limit (min)1.6AOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
Page 1/20

Download datasheet (267Kb)Embed
Next
FEATURES
Optimized for Fast Transient Response
Output Current: 1.5A
Dropout Voltage: 340mV
µ
Low Noise: 40
V
(10Hz to 100kHz)
RMS
1mA Quiescent Current
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
Adjustable Output from 1.21V to 20V
< 1µA Quiescent Current in Shutdown
Stable with 10µF Output Capacitor
Reverse Battery Protection
No Reverse Current
Thermal Limiting
5-Lead TO-220, DD, 3-Lead SOT-223, 8-Lead SO
and 16-Lead TSSOP Packages
U
APPLICATIO S
3.3V to 2.5V Logic Power Supplies
Post Regulator for Switching Supplies
U
TYPICAL
APPLICATION
3.3V to 2.5V Regulator
IN
OUT
+
V
> 3V
10µF
IN
LT1963-2.5
SHDN
SENSE
GND
Fast Transient Response
DESCRIPTIO
®
The LT
1963 series are low dropout regulators optimized
for fast transient response. The devices are capable of
supplying 1.5A of output current with a dropout voltage of
340mV. Operating quiescent current is 1mA, dropping to
< 1µA in shutdown. Quiescent current is well controlled; it
does not rise in dropout as it does with many other
regulators. In addition to fast transient response, the
LT1963 regulators have very low output noise which
makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21V to 20V. The LT1963
regulators are stable with output capacitors as low as
10µF. Internal protection circuitry includes reverse battery
protection, current limiting, thermal limiting and reverse
current protection. The devices are available in fixed
output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an
adjustable device with a 1.21V reference voltage. The
LT1963 regulators are available in 5-lead TO-220, DD,
3-lead SOT-223, 8-lead SO, and Exposed Pad 16-lead
TSSOP packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 6118263, 6144250.
400
350
300
2.5V
250
+
1.5A
10µF
200
150
100
1963 TA01
50
0
0
LT1963 Series
1.5A, Low Noise,
LDO Regulators
U
Dropout Voltage
0.2
0.8
1.0
1.6
0.4
0.6
1.2
1.4
OUTPUT CURRENT (A)
1963 TA02
1963fc
1

LT1963ES8-3.3 Summary of contents

  • Page 1

    ... The LT1963 regulators are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO, and Exposed Pad 16-lead TSSOP packages. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6118263, 6144250. 400 ...

  • Page 2

    ... W JMAX JA ORDER PART NUMBER ORDER PART NUMBER LT1963ET LT1963ET-1.5 LT1963ET-1.8 LT1963ET-2.5 LT1963ET-3.3 OUT GND IN ORDER PART NUMBER 196315 LT1963ES8 196318 LT1963ES8-1.5 196325 LT1963ES8-1.8 196333 LT1963ES8-2.5 LT1963ES8-3.3 TOP VIEW GND 1 16 GND OUT OUT *PIN 6 = SENSE FOR LT1963-1.5/ 17 LT1963-1.8/LT1963-2.5/ OUT ...

  • Page 3

    ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T PARAMETER CONDITIONS Minimum Input Voltage (Notes 4,12) I LOAD I LOAD Regulated Output Voltage (Note 5) LT1963-1.5 LT1963-1.8 LT1963-2.5 LT1963-3.3 ADJ Pin ...

  • Page 4

    LT1963 Series ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T PARAMETER CONDITIONS Current Limit Input Reverse Leakage Current (Note 13 Packages V ST ...

  • Page 5

    W U TYPICAL PERFOR A CE CHARACTERISTICS Typical Dropout Voltage 500 450 400 350 T = 125°C J 300 250 T = 25°C 200 J 150 100 0.8 1.2 1.4 0.2 0.4 0.6 1.0 1.6 OUTPUT CURRENT ...

  • Page 6

    LT1963 Series W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963-1.5 Quiescent Current 25° ∞ SHDN ...

  • Page 7

    W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963 GND Pin Current 25° SHDN IN *FOR V = 1.21V 8 OUT R = 4.33 300mA 12.1, ...

  • Page 8

    LT1963 Series W U TYPICAL PERFOR A CE CHARACTERISTICS SHDN Pin Input Current 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 SHDN PIN VOLTAGE (V) 1963 ...

  • Page 9

    W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963 Minimum Input Voltage 3 500mA L 2 100mA L 1.5 1.0 0.5 0 – 100 125 –25 0 TEMPERATURE (°C) ...

  • Page 10

    LT1963 Series CTIO S OUT: Output. The output supplies power to the load. A minimum output capacitor of 10µF is required to prevent oscillations. Larger output capacitors will be required for applications with large transient ...

  • Page 11

    U U APPLICATIO S I FOR ATIO The LT1963 series are 1.5A low dropout regulators opti- mized for fast transient response. The devices are capable of supplying 1. dropout voltage of 350mV. The low operating quiescent current (1mA) ...

  • Page 12

    LT1963 Series U U APPLICATIO S I FOR ATIO 20 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10µF 0 X5R –20 –40 –60 Y5V –80 –100 BIAS VOLTAGE (V) Figure 3. Ceramic ...

  • Page 13

    U U APPLICATIO S I FOR ATIO Thermal Considerations The power handling capability of the device is limited by the maximum rated junction temperature (125°C). The power dissipated by the device is made up of two components: 1. Output current ...

  • Page 14

    LT1963 Series U U APPLICATIO S I FOR ATIO Using a DD package, the thermal resistance will be in the range of 23°C/W to 33°C/W depending on the copper area. So the junction temperature rise above ambient will be approximately ...

  • Page 15

    U TYPICAL APPLICATIO S SCR Pre-Regulator Provides Efficiency Over Line Variations L2 10VAC AT 115V IN 90-140 VAC 10VAC AT 115V IN 1N4002 1N4002 “SYNC” 1N4002 2.4k TO ALL “+V” + POINTS 22µF 750Ω V > 3. 500µH ...

  • Page 16

    LT1963 Series PACKAGE DESCRIPTIO .060 .256 (1.524) (6.502) .060 .183 (1.524) (4.648) .075 (1.905) .300 (7.620) BOTTOM VIEW OF DD PAK HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK .067 RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN INCH/(MILLIMETER) 2. ...

  • Page 17

    PACKAGE DESCRIPTIO .050 BSC .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS ...

  • Page 18

    LT1963 Series PACKAGE DESCRIPTIO .264 – .287 (6.70 – 7.30) .130 – .146 (3.30 – 3.71) .0905 (2.30) BSC .071 (1.80) MAX 0.390 – 0.415 (9.906 – 10.541) 0.230 – 0.270 (5.842 – 6.858) 0.460 – 0.500 (11.684 – 12.700) ...

  • Page 19

    ... DIMENSIONS ARE IN 3. DRAWING NOT TO SCALE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 16-Lead Plastic TSSOP (4 ...

  • Page 20

    ... MS8 Package 1.21V 0.34V 1mA, I <1µ –1.21V 0.34V 30µ 3µ 0.20 0.15V 120µA, I <3µ 1.22V 0.30V 40µA, I <1µ 1.22V 0.30V 60µA, I <1µ 1.23V 0.13V 12mA 25µ 1105 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2005 1963fc ...