LTC1983ES6-3#TR Linear Technology, LTC1983ES6-3#TR Datasheet

IC CHARG PUMP REG INV 3V SOT23-6

LTC1983ES6-3#TR

Manufacturer Part Number
LTC1983ES6-3#TR
Description
IC CHARG PUMP REG INV 3V SOT23-6
Manufacturer
Linear Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheet

Specifications of LTC1983ES6-3#TR

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-3V
Current - Output
100mA
Frequency - Switching
900kHz
Voltage - Input
2.3 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-6, TSOT-6
Output Voltage
-3/-3 to -5.5V
Output Current
100mA
Operating Supply Voltage (max)
5.5V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Package Type
TSOT-23
Pin Count
6
Mounting
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Lead Free Status / Rohs Status
Not Compliant
Other names
LTC1983ES6-3TR
LTC1983ES63TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1983ES6-3#TRLTC1983ES6-3
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC1983ES6-3#TRLTC1983ES6-3#PBF
Manufacturer:
AVAGO
Quantity:
5 465
Company:
Part Number:
LTC1983ES6-3#TRLTC1983ES6-3#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC1983ES6-3#TRMPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
–3V Generation in Single-Supply Systems
Portable Equipment
LCD Bias Supplies
GaAs FET Bias Supplies
Fixed Output Voltages: –3V, –5V or Low Noise V
to –V
±4% Output Voltage Accuracy
Low Quiesient Current: 25µA
100mA Output Current Capability
2.3V to 5.5V Operating Voltage Range
Internal 900kHz Oscillator
“Zero Current” Shutdown
Short-Circuit and Over-Temperature Protected
Low Profile (1mm) ThinSOT
IN
Inverted Output
3V TO 5.5V
OFF ON
10µF
V
C
C
C
–3V at 100mA DC/DC Converter
IN
IN
FLY
IN
, C
: TAIYO YUDEN LMK212BJ105
U
OUT
: TAIYO YUDEN JMK316BJ106ML
V
SHDN
C
IN
LTC1983-3
+
C
1µF
FLY
TM
V
GND
OUT
C
U
Package
1983-3 TA01
V
I
C
10µF
OUT
OUT
OUT
= UP TO 100mA
= –3V
IN
DESCRIPTIO
The LTC
pump DC/DC converters that produce negative regulated
outputs. The parts require only three tiny external capaci-
tors and can provide up to 100mA of output current. The
devices can operate in open loop mode (creating a –V
supply) or regulated output mode depending on the input
supply voltage and the output current.
The LTC1983-3/LTC1983-5 have many useful features for
portable applications including very low quiescent current
(25µA typical) and a zero current shutdown mode pro-
grammed through the SHDN pin.
The LTC1983-3/LTC1983-5 are over-temperature and
short-circuit protected. The parts are available in a 6-pin
low profile (1mm) ThinSOT package.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Charge-Pump Inverters
®
1983-3 and LTC1983-5 are inverting charge
–3.3
–3.2
–3.1
–3.0
–2.9
–2.8
–2.7
LTC1983-3/LTC1983-5
0
100mA Regulated
20
U
V
OUT
40
I
OUT
V
vs I
IN
(mA)
V
IN
= 3.3V
60
OUT
= 5V
in ThinSOT
80
1983 TA02
100
1983fa
1
IN

Related parts for LTC1983ES6-3#TR

LTC1983ES6-3#TR Summary of contents

Page 1

... The LTC1983-3/LTC1983-5 are over-temperature and short-circuit protected. The parts are available in a 6-pin low profile (1mm) ThinSOT package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...

Page 2

... Specifications over the – 40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls ORDER PART NUMBER TOP VIEW LTC1983ES6-3 6 SHDN LTC1983ES6-5 5 GND – PART S6 PACKAGE MARKING = 125°C, θ = 256°C/W JA ...

Page 3

W U TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs I (LTC1983-5) OUT 3. 2. 25° ...

Page 4

LTC1983-3/LTC1983-5 W TYPICAL PERFOR A CE CHARACTERISTICS Burst Mode Input Current vs V (LTC1983- 25°C A 30.5 30.0 29.5 29.0 28.5 28.0 27.5 27.0 26.5 3.1 5.1 3.6 4.1 4.6 V (V) IN 1983 G10 SHDN ...

Page 5

CTIO S V (Pin 1): Charge Pump Input Voltage. May be between IN should be bypassed with a ≥4.7µF low 2.3V and 5.5V ESR capacitor as close as possible to the pin for ...

Page 6

LTC1983-3/LTC1983-5 U OPERATIO (Refer to Block Diagram) The LTC1983-3/LTC1983-5 use a switched capacitor charge pump to invert a positive input voltage to a regu- lated –3V ±4% (LTC1983-3) or –5 ±4% (LTC1983-5) output voltage. Regulation is achieved by sensing the ...

Page 7

U OPERATIO (Refer to Block Diagram) There are many aspects of the capacitors that must be taken into account. First, the temperature stability of the dielectric is a main concern. For ceramic capacitors, a three character code specifies the temperature ...

Page 8

LTC1983-3/LTC1983-5 U OPERATIO (Refer to Block Diagram) Inrush Currents During normal operation, V will experience current tran- IN sients in the several hundred milliamp range whenever the charge pump is enabled. During start-up, these inrush currents may approach 1 to ...

Page 9

U OPERATIO (Refer to Block Diagram) problem in the low I mode necessary to switch the Q part in and out of shutdown at the minimum allowable frequency (refer to Figure 3) for a given output load. General ...

Page 10

LTC1983-3/LTC1983-5 U TYPICAL APPLICATIO S 2.5V TO 5.5V 10 2.5V to –2.5V DC/DC Converter OUT IN 2.5V 4.7µF 1µF LTC1983-5 CERAMIC CERAMIC SHDN GND OFF ON – 1983 TA03 0.47µF CERAMIC 100mA Inverting ...

Page 11

... MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 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. U ...

Page 12

... IN OUT IN ≥ 2.7V), I ≥ 3V) = 20mA (V IN OUT IN Ripple P-P = 80mA, Output Noise = 60µV OUT =3.3V at 80mA; ADJ; MSOP Packages OUT = 13µ 50mA Q OUT ; RMS OUT IN LT/LWI 0606 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2002 , MSOP RMS 1983fa ...

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