TS2940CW33RP datasheet, PDF - EEWORLD Datasheet

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TS2940CW33RP: DescriptionFixed Positive LDO Regulator, 3.3V, 0.8V Dropout, PDSO3, ROHS COMPLIANT, SOT-223, 4 PIN; CategoryPower/power management The power supply circuit; File Size574KB，10 Pages; ManufacturerTaiwan Semiconductor; Websitehttp://www.taiwansemi.com/

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TS2940CW33RP Overview

Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, PDSO3, ROHS COMPLIANT, SOT-223, 4 PIN

TS2940CW33RP Parametric

Parameter Name	Attribute value
package instruction	SOP,
Reach Compliance Code	compliant
ECCN code	EAR99
Maximum drop-back voltage 1	0.8 V
Maximum input voltage	26 V
Minimum input voltage	5.3 V
JESD-30 code	R-PDSO-G3
length	6.6 mm
Number of functions	1
Number of terminals	3
Working temperatureTJ-Max	125 °C
Working temperature TJ-Min	-40 °C
Maximum output current 1	1 A
Maximum output voltage 1	3.399 V
Minimum output voltage 1	3.201 V
Nominal output voltage 1	3.3 V
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	1.8 mm
surface mount	YES
Terminal form	GULL WING
Terminal pitch	2.3 mm
Terminal location	DUAL
width	3.6 mm
Base Number Matches	1

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TS2940

1A Ultra Low Dropout Voltage Regulator

TO-220

TO-263

(D PAK)

TO-252

(DPAK)

SOT-223

Pin Definition:

1. Input

2. Ground

3. Output

General Description

The TS2940 series of fixed-voltage monolithic micro-power voltage regulators is designed for a wide range of

applications. This device excellent choice of use in battery-power application. Furthermore, the quiescent current

increases on slightly at dropout, which prolongs battery life.

This series of fixed-voltage regulators features low drop output voltage (Typ. 60mV at light load and 600mV at

800mA). This includes a tight initial tolerance of 2%, extremely good line regulation of 0.05% typ., and very low output

temperature coefficient.

Features

●

Dropout voltage typically 0.6V @ Io=800mA

Output current up to 1A

Output voltage trimmed before assembly

-18V Reverse peak voltage

●

+30V Input over voltage protection

+60V Transient peak voltage

Internal current limit

Thermal shutdown protection

Block Diagram

Ordering Information

Part No.

Package

Packing

TS2940CZxx C0

TO-220

50pcs / Tube

TS2940CMxx RN

TO-263

800pcs / 13” Reel

TS2940CPxx RO

TO-252

2.5Kpcs / 13” Reel

TS2940CWxx RP

SOT-223

2.5Kpcs / 13” Reel

Note: Where xx denotes voltage option, available are

50=

5.0V

33=

3.3V

Contact factory for additional voltage options.

Absolute Maximum Rating

(Note 1)

Parameter

Input Supply Voltage (Note 2)

Input Supply Voltage

Power Dissipation (Note 3)

Operating Junction Temperature Range

Storage Temperature Range

Symbol

OPR

STG

Limit

-18 ~ +60

Internally Limited

-40 ~ +125

-65 ~ +150

Unit

1/10

Version: C07

TS2940

1A Ultra Low Dropout Voltage Regulator

Application Information

The TS2940 series is a high performance with low dropout voltage regulator suitable for moderate to high current

and voltage regulator application. Its 600mA(typ) dropout voltage at full load and over temperature makes it

especially valuable in battery power systems and as high efficiency noise filters in post regulator applications. Unlike

normal NPN transistor design, where the base to emitter voltage drop and collector to emitter saturation voltage limit

the minimum dropout voltage, dropout performance of the PNP output of these devices is limited only by low Vce

saturation voltage.

The TS2940 series is fully protected from damage due to fault conditions. Linear current limiting is provided. Output

current during overload conditions is constant. Thermal shutdown the device when the die temperature exceeds the

maximum safe operating temperature. Transient protection allows device survival even when the input voltage

spikes above and below nominal. The output structure of these regulators allows voltages in excess of the desired

output voltage to be applied without reverse current flow.

Typical Application Circuit

Output Capacitor

The TS2940 series requires an output capacitor to maintain stability and improve transient response. Proper capacitor

selection is important to ensure proper operation. The output capacitor selection is dependent upon the ESR of the

output capacitor the maintain stability. When the output capacitor is 22uF or greater, the output capacitor should have

an ESR less than 2 ohm. This will improve transient response as well as promoted stability. Ultra low ESR capacitors

(<100mohm), such as ceramic chip capacitors may promote instability. These very low ESR levels may cause an

oscillation and/or under damped transient response. A low ESR solid tantalum capacitor works extremely well and

provides good transient response and stability over temperature. Aluminum electrolytic can also be used, as long as

the ESR of the capacitor is <2ohm. The value of the output capacitor can be increased without limit. Higher

capacitance values help to improved transient response and ripple rejection and reduce output noise.

Minimum Load Current

The TS2940 series is specified between finite loads. If the output current is too small leakage currents dominate and

the output voltage rises. A 10mA minimum load current is necessary for proper regulation.

Input Capacitor

An input capacitor of 1uF or greater is recommended when the device is more that 4 inches away from the bulk AC

supply capacitance or when the supply is a battery. Small and surface mount ceramic chip capacitors can be used for

bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving

the integrity of the output voltage.

3/10

Version: C07

TS2940CW33RP Related Products

	TS2940CW33RP	TS2940CW50RP	TS2940CM33RN	TS2940CM50RN	TS2940CP33RO	TS2940CP50RO	TS2940CZ33C0	TS2940CZ50C0
Description	Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, PDSO3, ROHS COMPLIANT, SOT-223, 4 PIN	Fixed Positive LDO Regulator, 5V, 0.8V Dropout, PDSO3, ROHS COMPLIANT, SOT-223, 4 PIN	Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, PSSO3, ROHS COMPLIANT, TO-263, D2PAK-3	Fixed Positive LDO Regulator, 5V, 0.8V Dropout, PSSO3, ROHS COMPLIANT, TO-263, D2PAK-3	Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, PSSO2, ROHS COMPLIANT, TO-252, DPAK-3	Fixed Positive LDO Regulator, 5V, 0.8V Dropout, PSSO2, ROHS COMPLIANT, TO-252, DPAK-3	Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, ROHS COMPLIANT, TO-220, 3 PIN	Fixed Positive LDO Regulator, 5V, 0.8V Dropout, ROHS COMPLIANT, TO-220, 3 PIN
package instruction	SOP,	SOP,	TO-263,	TO-263,	TO-252,	TO-252,	,	,
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Maximum drop-back voltage 1	0.8 V	0.8 V	0.8 V	0.8 V	0.8 V	0.8 V	0.8 V	0.8 V
Maximum input voltage	26 V	26 V	26 V	26 V	26 V	26 V	26 V	26 V
Minimum input voltage	5.3 V	7 V	5.3 V	7 V	5.3 V	7 V	5.3 V	7 V
JESD-30 code	R-PDSO-G3	R-PDSO-G3	R-PSSO-G3	R-PSSO-G3	R-PSSO-G2	R-PSSO-G2	R-XSFM-T3	R-XSFM-T3
Number of functions	1	1	1	1	1	1	1	1
Number of terminals	3	3	3	3	2	2	3	3
Working temperatureTJ-Max	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Working temperature TJ-Min	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Maximum output current 1	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A
Maximum output voltage 1	3.399 V	5.15 V	3.399 V	5.15 V	3.399 V	5.15 V	3.399 V	5.15 V
Minimum output voltage 1	3.201 V	4.85 V	3.201 V	4.85 V	3.201 V	4.85 V	3.201 V	4.85 V
Nominal output voltage 1	3.3 V	5 V	3.3 V	5 V	3.3 V	5 V	3.3 V	5 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	FLANGE MOUNT	FLANGE MOUNT
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount	YES	YES	YES	YES	YES	YES	NO	NO
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE	THROUGH-HOLE
Terminal location	DUAL	DUAL	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE
Base Number Matches	1	1	1	1	1	1	1	1
length	6.6 mm	6.6 mm	10.25 mm	10.25 mm	6.525 mm	6.525 mm	-	-
encapsulated code	SOP	SOP	TO-263	TO-263	TO-252	TO-252	-	-
Maximum seat height	1.8 mm	1.8 mm	4.83 mm	4.83 mm	2.6 mm	2.6 mm	-	-
Terminal pitch	2.3 mm	2.3 mm	2.54 mm	2.54 mm	2.3 mm	2.3 mm	-	-
width	3.6 mm	3.6 mm	8.54 mm	8.54 mm	5.6 mm	5.6 mm	-	-
Maker	-	-	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor

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