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LT1963EFE-1.8#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
LT1963 Series
1963fc
TYPICAL APPLICATION
U
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
1.5A, Low Noise,
Fast Transient Response
LDO Regulators
■
Optimized for Fast Transient Response
■
Output Current: 1.5A
■
Dropout Voltage: 340mV
■
Low Noise: 40
µ
V
RMS
(10Hz to 100kHz)
■
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
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.
3.3V to 2.5V Regulator
■
3.3V to 2.5V Logic Power Supplies
■
Post Regulator for Switching Supplies
IN
SHDN
10µF
1963 TA01
OUT
V
IN
> 3V
SENSE
GND
LT1963-2.5
2.5V
1.5A
10µF
++
OUTPUT CURRENT (A)
0
DROPOUT VOLTAGE (mV)
200
300
1.6
1963 TA02
100
0
0.4
0.8
1.2
0.2
0.6
1.0
1.4
400
150
250
50
350
Dropout Voltage
, 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.
2
LT1963 Series
1963fc
(Note 1)
IN Pin Voltage ........................................................ ±20V
OUT Pin Voltage .................................................... ±20V
Input to Output Differential Voltage (Note 2) ......... ±20V
SENSE Pin Voltage ............................................... ±20V
ADJ Pin Voltage ...................................................... ±7V
SHDN Pin Voltage ................................................. ±20V
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range –40°C to 125°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
LT1963ES8
LT1963ES8-1.5
LT1963ES8-1.8
LT1963ES8-2.5
LT1963ES8-3.3
ORDER PART NUMBER
LT1963EST-1.5
LT1963EST-1.8
LT1963EST-2.5
LT1963EST-3.3
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ST PART MARKING
ORDER PART NUMBER S8 PART MARKING
Order Options
Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
196315
196318
196325
196333
1963
196315
196318
196325
196333
3
2
1
FRONT VIEW
TAB IS
GND
OUT
GND
IN
ST PACKAGE
3-LEAD PLASTIC SOT-223
T
JMAX
= 150°C, θ
JA
= 50°C/ W
1
2
3
4
8
7
6
5
TOP VIEW
IN
GND
GND
SHDN
OUT
SENSE/ADJ*
GND
NC
S8 PACKAGE
8-LEAD PLASTIC SO
*PIN 2 = SENSE FOR LT1963-1.5/LT1963-1.8/
LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
T
JMAX
= 150°C, θ
JA
= 70°C/ W
LT1963ET
LT1963ET-1.5
LT1963ET-1.8
LT1963ET-2.5
LT1963ET-3.3
ORDER PART NUMBER
LT1963EQ
LT1963EQ-1.5
LT1963EQ-1.8
LT1963EQ-2.5
LT1963EQ-3.3
ORDER PART NUMBER
T
JMAX
= 150°C, θ
JA
= 30°C/ W
*PIN 5 = SENSE FOR LT1963-1.5/LT1963-1.8/
LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
*PIN 5 = SENSE FOR LT1963-1.5/LT1963-1.8/
LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
T
JMAX
= 150°C, θ
JA
= 50°C/ W
Q PACKAGE
5-LEAD PLASTIC DD
TAB IS
GND
FRONT VIEW
SENSE/ADJ*
OUT
GND
IN
SHDN
5
4
3
2
1
T PACKAGE
5-LEAD PLASTIC TO-220
SENSE/
ADJ*
OUT
GND
IN
SHDN
FRONT VIEW
TAB IS
GND
5
4
3
2
1
LT1963EFE
LT1963EFE-1.5
LT1963EFE-1.8
LT1963EFE-2.5
LT1963EFE-3.3
ORDER PART NUMBER FE PART MARKING
1963EFE
1963EFE15
1963EFE18
1963EFE25
1963EFE33
T
JMAX
= 150°C, θ
JA
= 38°C/ W
*PIN 6 = SENSE FOR LT1963-1.5/
LT1963-1.8/LT1963-2.5/
LT1963-3.3
= ADJ FOR LT1963
FE PACKAGE
16-LEAD PLASTIC TSSOP
EXPOSED PAD (PIN 17) IS GND. MUST BE
SOLDERED TO THE PCB.
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
GND
NC
OUT
OUT
OUT
SENSE/ADJ*
GND
GND
GND
NC
IN
IN
IN
NC
SHDN
GND
17
3
LT1963 Series
1963fc
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage (Notes 4,12) I
LOAD
= 0.5A 1.9 V
I
LOAD
= 1.5A 2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 2.1 2.5 V
Regulated Output Voltage (Note 5) LT1963-1.5 V
IN
= 2.21V, I
LOAD
= 1mA 1.477 1.500 1.523 V
2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.447 1.500 1.545 V
LT1963-1.8 V
IN
= 2.3V, I
LOAD
= 1mA 1.773 1.800 1.827 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.737 1.800 1.854 V
LT1963-2.5 V
IN
= 3V, I
LOAD
= 1mA 2.462 2.500 2.538 V
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 2.412 2.500 2.575 V
LT1963-3.3 V
IN
= 3.8V, I
LOAD
= 1mA 3.250 3.300 3.350 V
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 3.200 3.300 3.400 V
ADJ Pin Voltage LT1963 V
IN
= 2.21V, I
LOAD
= 1mA 1.192 1.210 1.228 V
(Notes 4, 5) 2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.174 1.210 1.246 V
Line Regulation LT1963-1.5 ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 2.0 10 mV
LT1963-1.8 ∆V
IN
= 2.3V to 20V, I
LOAD
= 1mA ● 2.5 10 mV
LT1963-2.5 ∆V
IN
= 3V to 20V, I
LOAD
= 1mA ● 3.0 10 mV
LT1963-3.3 ∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA ● 3.5 10 mV
LT1963 (Note 4) ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 1.5 10 mV
Load Regulation LT1963-1.5 V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A 2 9 mV
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A ● 18 mV
LT1963-1.8 V
IN
= 2.8V, ∆I
LOAD
= 1mA to 1.5A 2 10 mV
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 1.5A ● 20 mV
LT1963-2.5 V
IN
= 3.5V, ∆I
LOAD
= 1mA to 1.5A 2.5 15 mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 1.5A ● 30 mV
LT1963-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 1.5A 3 20 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 1.5A ● 35 mV
LT1963 (Note 4) V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A 2 8 mV
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A ● 15 mV
Dropout Voltage I
LOAD
= 1mA 0.02 0.06 V
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA ● 0.10 V
(Notes 6, 7, 12)
I
LOAD
= 100mA 0.10 0.17 V
I
LOAD
= 100mA ● 0.22 V
I
LOAD
= 500mA 0.19 0.27 V
I
LOAD
= 500mA ● 0.35 V
I
LOAD
= 1.5A 0.34 0.45 V
I
LOAD
= 1.5A ● 0.55 V
GND Pin Current I
LOAD
= 0mA ● 1.0 1.5 mA
V
IN
= V
OUT(NOMINAL)
+ 1V I
LOAD
= 1mA ● 1.1 1.6 mA
(Notes 6, 8)
I
LOAD
= 100mA ● 3.8 5.5 mA
I
LOAD
= 500mA ● 15 25 mA
I
LOAD
= 1.5A ● 80 120 mA
Output Voltage Noise C
OUT
= 10µF, I
LOAD
= 1.5A, BW = 10Hz to 100kHz 40 µV
RMS
ADJ Pin Bias Current (Notes 4, 9) 3 10 µA
Shutdown Threshold V
OUT
= Off to On ● 0.90 2 V
V
OUT
= On to Off ● 0.25 0.75 V
SHDN Pin Current V
SHDN
= 0V 0.01 1 µA
(Note 10) V
SHDN
= 20V 3 30 µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 0.01 1 µA
Ripple Rejection V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
,5563dB
f
RIPPLE
= 120Hz, I
LOAD
= 0.75A
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 3)
ELECTRICAL CHARACTERISTICS
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LT1963EFE-1.8#PBF

Mfr. #:
Buy LT1963EFE-1.8#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 1.5A, Fast Transient LDO in FE-16
Lifecycle:
New from this manufacturer.
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