TC2055-2.85VCTTR713_技术文档

TC2054/2055/2186

50 mA, 100 mA, and 150 mA CMOS LDOs

with Shutdown and Error Output

Features

General Description

• Low Supply Current (55 µA Typ.) for Longer Bat-

tery Life

The TC2054, TC2055 and TC2186 are high accuracy

(typically ±0.4%) CMOS upgrades for older (bipolar)

low dropout regulators. Designed specifically for bat-

tery-operated systems, the devices’ total supply current

is typically 55 µA at full load (20 to 60 times lower than

in bipolar regulators).

• Low Dropout Voltage: 140 mV (Typ.) @ 150 mA

• High Output Voltage Accuracy: ±0.4% (Typ)

• Standard or Custom Output Voltages

• Power-Saving Shutdown Mode

The devices’ key features include low noise operation,

low dropout voltage – typically 45 mV (TC2054); 90 mV

(TC2055); and 140 mV (TC2186) at full load - and fast

response to step changes in load. An error output

(ERROR) is asserted when the devices are out-of-reg-

ulation (due to a low input voltage or excessive output

current). Supply current is reduced to 0.5 µA (max) and

both V_OUTand ERROR are disabled when the shut-

down input is low. The devices also incorporate over-

current and overtemperature protection.

• ERROR Output Can Be Used as a Low Battery

Detector or Processor Reset Generator

• Fast Shutdown Reponse Time: 60 μsec (Typ)

• Overcurrent and Overtemperature Protection

• Space-Saving 5-Pin SOT-23A Package

• Pin Compatible Upgrades for Bipolar Regulators

• Standard Output Voltage Options:

- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,

3.3V, 5.0V

The TC2054, TC2055 and TC2186 are stable with a

low esr ceramic output capacitor of 1 µF and have a

maximum output current of 50 mA, 100 mA and

150 mA, respectively. This LDO Family also features a

fast response time (60 µs typically) when released from

shutdown.

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

Package Type

• Cellular / GSMS / PHS Phones

• Pagers

V_OUT

ERROR

4

5

Typical Application

TC2054

TC2055

TC2186

1

5

V

IN

OUT

IN

1 µF

2

3

1

5-Pin SOT-23A

V_IN

Top View

GND SHDN

2

GND

TC2054

TC2055

TC2186

1M

3

4

SHDN

ERROR

Shutdown Control

(from Power Control Logic)

DS21663C-page 1

TC2054/2055/2186

† Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to

the device. These are stress ratings only and functional

operation of the device at these or any other conditions

above those indicated in the operation sections of the

specifications is not implied. Exposure to Absolute

Maximum Rating conditions for extended periods my

affect device reliability.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage .........................................................6.5V

Output Voltage................................(-0.3) to (V_IN+ 0.3)

Operating Temperature .................. -40°C < T_J< 125°C

Storage Temperature..........................-65°C to +150°C

Maximum Voltage on Any Pin ........V_IN+0.3V to -0.3V

ELECTRICAL SPECIFICATIONS

Electrical Specifications: Unless otherwise noted, V_IN= V_R+ 1V, I_L= 100 µA, C_L= 3.3 µF, SHDN > V_IH, T_A= +25°C.

BOLDFACE type specifications apply for junction temperature of -40°C to +125°C.

Parameter

Sym

Min

2.7

Typ

Max

6.0

Units

Conditions

Input Operating Voltage

Maximum Output Current

V_IN

—

V

Note 1

IOUT

50

100

150

—

mA

TC2054

TC2055

TC2186

MAX

Output Voltage

V_OUT

V_R- 2.0% V_R± 0.4% V_R+ 2.0%

V

Note 2

V_OUTTemperature

Coefficient

TCV_OUT

—

20

40

—

ppm/°C Note 3

Line Regulation

ΔV_OUT

ΔV_IN

/

—

0.05

0.5

%

(V_R+ 1V) < V_IN< 6V

Load Regulation

ΔV_OUT

V_OUT

-1.5

-2.5

0.5

TC2054;TC2055I_L= 0.1 mA to IOUT

MAX

TC2186

I_L= 0.1 mA to IOUT

Note 4

Dropout Voltage, Note 5

V_IN– V_OUT

—

2

45

90

140

—

70

140

210

mV

I_L= 100 µA

I_L= 50 mA

TC2015; TC2185 I_L= 100 mA

TC2185

I_L= 150 mA

Note 5

Supply Current

I_IN

—

55

0.05

50

80

0.5

—

µA

dB

SHDN = V_IH, I_L=0

SHDN = 0V

Shutdown Supply Current

I_INSD

PSRR

Power Supply Rejection

Ratio

F_RE≤ 100 kHz

Output Short Circuit Current

Thermal Regulation

I_OUT

160

—

300

0.04

160

—

mA

V_OUT= 0V

SC

ΔV_OUT/ΔP_D

V/W Note 6

Thermal Shutdown Die

Temperature

T_SD

—

°C

Note 1: The minimum V_INhas to meet two conditions: V_IN= 2.7V and V_IN= V_R+ V_DROPOUT

2: _Ris the regulator output voltage setting. For example: V_R= 1.8V, 2.7V, 2.8V, 2.85V, 3.0V, 3.3V.

3: TCV_OUT

.

V

=

6

(V

– V

) × 10

OUTMAX

OUTMIN

× ΔT

-----------------------------------------------------------------------------------------

V

OUT

4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested

over a load range from 1.0mA to the maximum specified output current. Changes in output voltage due to heating

effects are covered by the thermal regulation specification.

5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value

at a 1V differential.

6: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,

excluding load or line regulation effects. Specifications are for a current pulse equal to I_MAXat V_IN= 6V for T = 10 ms.

7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction tem-

perature and the thermal resistance from junction-to-air (i.e. T_A, T_J, θ_JA).

8: Hysteresis voltage is referenced by V_R.

9: Time required for V_OUTto reach 95% of V_R(output voltage setting), after V_SHDNis switched from 0 to V_IN

.

DS21663C-page 2

TC2054/2055/2186

ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Specifications: Unless otherwise noted, V_IN= V_R+ 1V, I_L= 100 µA, C_L= 3.3 µF, SHDN > V_IH, T_A= +25°C.

BOLDFACE type specifications apply for junction temperature of -40°C to +125°C.

Parameter

Output Noise

Sym

Min

Typ

Max

Units

Conditions

eN

—

600

—

nV /

√Hz

I_L= I_OUTMAX, F = 10 kHz

Response Time

t_R

—

60

—

µs

V_IN= 4V

(from Shutdown Mode)

C_IN= 1 µF, C_OUT= 10 µF

I_L= 0.1 mA, Note 9

SHDN Input

SHDN Input High Threshold V_IH

SHDN Input Low Threshold V_IL

ERROR OUTPUT

60

—

%V_INV_IN= 2.5V to 6.0V

—

15

Minimum V_INOperating

Voltage

V_INMIN

1.0

—

V

I_OL= 0.1 mA

Output Logic Low Voltage

V_OL

400

mV

1 mA Flows to ERROR,

I_OL= 1 mA, V_IN= 2V

ERROR Threshold Voltage V_TH

ERROR Positive Hysteresis V_HYS

—

0.95 x V_R

—

V

mV

ms

Ω

See Figure 4-2

50

2

Note 8

V_OUTto ERROR Delay

t_DELAY

V_OUTfrom V_R= 3V to 2.8V

V_DD= 2.5V, V_OUT= 2.5V

Resistance from ERROR to R_ERROR

GND

126

Note 1: The minimum V_INhas to meet two conditions: V_IN= 2.7V and V_IN= V_R+ V_DROPOUT

2: _Ris the regulator output voltage setting. For example: V_R= 1.8V, 2.7V, 2.8V, 2.85V, 3.0V, 3.3V.

3: TCV_OUT

.

V

=

6

(V

– V

) × 10

OUTMAX

OUTMIN

× ΔT

-----------------------------------------------------------------------------------------

V

OUT

4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested

over a load range from 1.0mA to the maximum specified output current. Changes in output voltage due to heating

effects are covered by the thermal regulation specification.

5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value

at a 1V differential.

6: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,

excluding load or line regulation effects. Specifications are for a current pulse equal to I_MAXat V_IN= 6V for T = 10 ms.

7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction tem-

perature and the thermal resistance from junction-to-air (i.e. T_A, T_J, θ_JA).

8: Hysteresis voltage is referenced by V_R.

9: Time required for V_OUTto reach 95% of V_R(output voltage setting), after V_SHDNis switched from 0 to V_IN

.

TEMPERATURE CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, V_DD= +2.7V to +6.0V and V_SS= GND.

Parameters

Temperature Ranges:

Sym

Min

Typ

Max

Units

Conditions

Extended Temperature Range

Operating Temperature Range

Storage Temperature Range

Thermal Package Resistances:

Thermal Resistance, 5L-SOT-23

T_A

-40

-65

—

+125

+150

°C

θ_JA

—

255

—

°C/W

DS21663C-page 3

TC2054/2055/2186

2.0

TYPICAL PERFORMANCE CURVES

Note: The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Note: Unless otherwise indicated, V_IN= V_R+ 1V, I_L= 100 µA, C_OUT= 3.3 µF, SHDN > V_IH, T_A= +25°C.

0

-20

0

-20

V_INDC= 4V

V_INAC= 100mV_p-p

V_OUTDC= 3V

I_OUT= 100µA

C_OUT= 1 µF Ceramic

V_INDC= 4V

V_INAC= 100 mV_p-p

V_OUTDC= 3V

-40

-60

-80

I_OUT= 150 mA

C_OUT= 10 µF Ceramic

-100

10

100

1000

1,000

10k

10,000

100k 1M

100,000 1,000,000

10

100

1000

1,000

10k

10,000

100k 1M

100,000 1,000,000

f (Hz)

FIGURE 2-1:

Power Supply Rejection

FIGURE 2-4:

Power Supply Rejection

Ratio.

0

V_INDC= 4V

V_INAC= 100 mV_p-p

V_OUTDC= 3V

V_INAC= 100 mV_p-p

V_OUTDC= 3V

-20

-40

-20

-40

-60

-80

I_OUT= 150 mA

C_OUT= 10 µF Tantalum

C_OUT= 1 µF Ceramic

-100

10

100

1000

1,000

10k

10,000

100k 1M

100,000 1,000,000

1100

110000

1,000

1000

101,00k00

100,000 1,000,000

100k

1M

f (Hz)

FIGURE 2-2:

Power Supply Rejection

FIGURE 2-5:

Power Supply Rejection

Ratio.

0.160

10

1

VOUT = 1.8V

0.140

0.120

0.100

T = 25°C

C_OUT= 1µF

T = 130°C

T = -45°C

0.1

0.01

0.080

0.060

0.040

0.020

0.001

0.01

0.000

0

0.1

1

10

100

1000

100

150

50

ILOAD (mA)

Frequency (kHz)

FIGURE 2-3:

Output Noise vs. Frequency.

FIGURE 2-6:

Dropout Voltage vs. I

.

LOAD

DS21663C-page 4

TC2054/2055/2186

Note: Unless otherwise indicated, V_IN= V_R+ 1V, I_L= 100 µA, C_OUT= 3.3 µF, SHDN > V_IH, T_A= +25°C.

65.00

1.9

1.88

1.86

1.84

VOUT = 1.8V

63.00

61.00

1.82

1.8

VIN = 2.8V

59.00

57.00

VIN = 2.8V

1.78

1.76

1.74

55.00

53.00

1.72

1.7

0

15

30

45

60

75

ILOAD (mA)

90

105

120

135

150

-45

5

55

105

155

Temperature (°C)

FIGURE 2-7:

I

vs. Temperature.

FIGURE 2-10:

Output Voltage vs. Output

DD

Current.

2.9

V

OUT = 2.8V

V^OUT= 2.8V

IOUT = 0.1mA

I

OUT = 0.1mA

2.85

2.8

V

IN = 6.5V

2.85

Temp = +130˚C

2.8

2.75

2.7

V

IN = 6.0V

V

IN = 3.8V

2.75

2.7

Temp = +25˚C

Temp = -45˚C

2.65

2.6

2.65

2.6

2.55

2.5

2.55

2.5

-50 -35 -20 -5

10

25

40 55

70

85 100 115 130 145

3.5

4

4.5

5

5.5

6

6.5

7

VIN (V)

Temperature (˚C)

FIGURE 2-8:

Output Voltage vs.

FIGURE 2-11:

Output Voltage vs. Supply

Temperature.

Voltage.

1.9

V^OUT= 1.8V

V

OUT = 1.8V

IOUT = 0.1mA

1.88

1.86

1.88

1.86

1.84

I

OUT = 0.1mA

1.84

1.82

1.8

VIN = 6.0V

VIN = 6.5V

Temp = +130˚C

Temp = +25˚C

1.82

1.8

1.78

Temp = -45˚C

1.78

VIN = 2.8V

1.76

1.74

1.76

1.74

1.72

1.7

-50 -35 -20

-5

10

25 40

55 70

85 100 115 130 145

2.7

3.2

3.7

4.2

4.7

5.2

5.7

6.2

6.7

VIN (V)

Temperature (˚C)

FIGURE 2-9:

Output Voltage vs.

FIGURE 2-12:

Dropout Voltage vs. Supply

Temperature.

Voltage.

DS21663C-page 5

TC2054/2055/2186

Note: Unless otherwise indicated, V_IN= V_R+ 1V, I_L= 100 µA, C_OUT= 3.3 µF, SHDN > V_IH, T_A= +25°C.

V

= 3.8V

IN

V

= 3.0V

IN

= 2.8V

OUT

= 2.8V

OUT

C

= 1 µF Ceramic

IN

C

= 1µF Ceramic

IN

C

OUT

C

= 10µF Ceramic

OUT

Frequency = 1 KHz

Frequency = 10KHz

V

100mV/DIV

OUT

100mV / DIV

V

OUT

Load Current

150mA

Load

100µA

150mA

Load

100µA

FIGURE 2-13:

Load Transient Response.

FIGURE 2-16:

Load Transient Response.

Load Transient Response in Dropout Mode

V

C

I

= 4.0V

IN

= 3.0V

= 10μF

= 0.01μF

= 100µA

OUT

BYP

VOUT

OUT

100mV/DIV

V

SHDN

150mA

VIN = 3.105V

V^OUT= 3.006V

C^IN= 1µF Ceramic

C^OUT= 1µF Ceramic

R^LOAD= 20Ω

100µA

V

OUT

FIGURE 2-14:

Dropout Mode.

Load Transient Response in

FIGURE 2-17:

Shutdown Delay.

V

= 2.8V

OUT

C

I

= 1μF Ceramic

= 470pF

OUT

V

SHDN

BYP

= 100μA

OUT

50mV / DIV

V

OUT

Input Voltage

2V / DIV

V

OUT

6V

4V

V

= 4.0V

IN

= 3.0V

OUT

C

= 10μF

OUT

C

= 0.01μF

= 100µA

BYP

OUT

I

FIGURE 2-18:

Shutdown Wake-up Time.

FIGURE 2-15:

Line Transient Response.

DS21663C-page 6

TC2054/2055/2186

Note: Unless otherwise indicated, V_IN= V_R+ 1V, I_L= 100 µA, C_OUT= 3.3 µF, SHDN > V_IH, T_A= +25°C.

RPULLUP = 100kΩ

IOUT = 0.3mA

VIN

1V/Div

3.42V

3.0V

2.8V

V^OUT

2V/Div

VERROR

0V

FIGURE 2-19:

V

to ERROR Delay.

OUT

DS21663C-page 7

TC2054/2055/2186

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 3-1.

TABLE 3-1:

Pin Number

PIN FUNCTION TABLE

Symbol

Description

1

2

3

V_IN

Unregulated supply input.

Ground terminal.

GND

SHDN

Shutdown control input. The regulator is fully enabled when a logic high is applied

to this input. The regulator enters shutdown when a logic low is applied to this

input. During shutdown, output voltage falls to zero, ERROR is open circuited

and supply current is reduced to 0.5µA (max).

4

5

ERROR

V_OUT

Out-of-Regulation Flag. (Open-drain output). This output goes low when V_OUTis

out-of-tolerance by approximately -5%.

Regulated voltage output.

3.1

Unregulated Supply Input (V_IN)

3.4

Out-of-Regulation Flag (ERROR)

Connect the unregulated input supply to the V_INpin. If

there is a large distance between the input supply and

the LDO regulator, some input capacitance is

necessary for proper operation. A 1 µF capacitor,

connected from V_INto ground, is recommended for

most applications.

The open-drain ERROR flag provides indication that

the regulator output voltage is not in regulation. The

ERROR pin will be low when the output is typically

below 5% of its specified value.

3.5

Regulated Voltage Output (V_OUT)

Connect the output load to V_OUTof the LDO. Also

connect one side of the LDO output decoupling

capacitor as close as possible to the V_OUTpin.

3.2

Ground Terminal (GND)

Connect the unregulated input supply ground return to

GND. Also connect one side of the 1 µF typical input

decoupling capacitor close to this pin and one side of

the output capacitor C_OUTto this pin.

3.3

Shutdown Control Input (SHDN)

The regulator is fully enabled when a logic-high is

applied to SHDN. The regulator enters shutdown when

a logic-low is applied to this input. During shutdown, the

output voltage falls to zero and the supply current is

reduced to 0.5 µA (max).

DS21663C-page 8

TC2054/2055/2186

4.0

DETAILED DESCRIPTION

V

OUT

The TC2054, TC2055 and TC2186 are precision fixed

output voltage regulators. (If an adjustable version is

desired, refer to the TC1070/TC1071/TC1187 data

sheet (DS21353). Unlike bipolar regulators, the

TC2054, TC2055 and TC2186 supply current does not

increase with load current. In addition, V_OUTremains

stable and within regulation over the entire 0 mA to

maximum output current operating load range.

HYSTERESIS (V

)

HYS

V

TH

ERROR

V

IH

V

OL

Figure 4-1 shows a typical application circuit. The

regulator is enabled any time the shutdown input

(SHDN) is at or above V_IH, and shutdown (disabled)

when SHDN is at or below V_IL. SHDN may be con-

trolled by a CMOS logic gate, or I/O port of a microcon-

troller. If the SHDN input is not required, it should be

connected directly to the input supply. While in shut-

down, supply current decreases to 0.05 µA (typical),

V_OUTfalls to zero volts, and ERROR is open-circuited.

FIGURE 4-2:

Error Output Operation.

4.2

Output Capacitor

A 1 µF (min) capacitor from V_OUTto ground is required.

The output capacitor should have an effective series

resistance of 0.01Ω. to 5Ω for V_OUT= 2.5V, and 0.05Ω.

to 5Ω for V_OUT< 2.5V. Ceramic, tantalum and

aluminum electrolytic capacitors can be used. (Since

many aluminum electrolytic capacitors freeze at

V

approximately

-30°C,

solid

tantalums

are

V

OUT

IN

OUT

1 µF

recommended for applications operating below -25°C).

When operating from sources other than batteries,

supply-noise rejection and transient response can be

improved by increasing the value of the input and

output capacitors and employing passive filtering

techniques.

1 µF

C

1

TC2054

TC2055

TC2186

BATTERY

GND

V+

SHDN

ERROR

R

1

Shutdown Control

(to CMOS Logic or Tie

to V if unused)

IN

1MΩ

C2 Required Only

if ERROR is used as a

Processor RESET Signal

(See Text)

BATTLOW

or RESET

4.3

Input Capacitor

0.2 µF

A 1 µF capacitor should be connected from V_INto GND

if there is more than 10 inches of wire between the

regulator and this AC filter capacitor, or if a battery is

used as the power source. Aluminum electrolytic or

tantalum capacitors can be used (since many

aluminum electrolytic capacitors freeze at approxi-

mately -30°C, solid tantalum are recommended for

applications operating below -25°C). When operating

from sources other than batteries, supply-noise

rejection and transient response can be improved by

increasing the value of the input and output capacitors

and employing passive filtering techniques.

C

2

FIGURE 4-1:

Typical Application Circuit.

4.1

ERROR Open-Drain Output

ERROR is driven low whenever V_OUTfalls out of

regulation by more than -5% (typical). This condition

may be caused by low input voltage, output current

limiting or thermal limiting. The ERROR threshold is 5%

below rated V_OUTregardless of the programmed out-

put voltage value (e.g. ERROR = V_OLat 4.75V (typ.) for

a 5.0V regulator and 2.85V (typ.) for a 3.0V regulator).

ERROR output operation is shown in Figure 4-2.

Note that ERROR is active when V_OUTfalls to V_TH, and

inactive when V_OUTrises above V_THby V_HYS

.

As shown in Figure 4-1, ERROR can be used as a

battery low flag or as a processor RESET signal (with

the addition of timing capacitor C₂). R₁x C₂should be

chosen to maintain ERROR below V_IHof the processor

RESET input for at least 200 ms to allow time for the

system to stabilize. Pull-up resistor R₁can be tied to

V_OUT, V_INor any other voltage less than (V_IN+ 0.3V).

The ERROR pin sink current is self-limiting to

approximately 18 mA.

DS21663C-page 9

TC2054/2055/2186

Equation 5-1 can be used in conjunction with

Equation 5-2 to ensure regulator thermal operation is

within limits. For example:

5.0

5.1

THERMAL CONSIDERATIONS

Thermal Shutdown

Integrated thermal protection circuitry shuts the regula-

tor off when the die temperature exceeds approxi-

mately 160°C. The regulator remains off until the die

temperature cools to approximatley 150°C.

Given:

V_INMAX

= 3.0V +10%

V_OUTMIN= 2.7V – 2.5%

I_LOADMAX= 40 mA

5.2

Power Dissipation

T_AMAX

= +55°C

The amount of power the regulator dissipates is

primarily a function of input and output voltage, and

output current.

Find:

1. Actual power dissipation

Equation 5-1 is used to calculate worst case power

dissipation:

2. Maximum allowable dissipation

Actual power dissipation:

EQUATION 5-1:

P

≈ (V_INMAX– V_OUTMIN)I_LOADMAX

P_D= (V_INMAX– V_OUTMIN)I_LOADMAX

D

= [(3.0 × 1.1) – (2.7 × 0.975)]40 × 10^–3

= 26.7mW

Where:

P_D

= Worst-case actual power dissipation

= Maximum voltage on V_IN

V_INMAX

Maximum allowable power dissipation:

V_OUTMIN= Minimum regulator output voltage

I_LOADMAX= Maximum output (load) current

T_JMAX– T_AMAX

P_DMAX= --------------------------------------

θ_JA

125 – 55

220

The

(Equation 5-2) is a function of the maximum ambient

temperature (T_A

maximum

allowable

power

dissipation

= --------------------

_MAX), the maximum allowable die

= 318mW

temperature (125 °C) and the thermal resistance from

junction-to-air (θ_JA). The 5-Pin SOT-23A package has

a θ_JAof approximately 220°C/Watt when mounted on a

typical two layer FR4 dielectric copper clad PC board.

In this example, the TC2054 dissipates a maximum of

only 26.7 mW; far below the allowable limit of 318 mW.

In a similar manner, Equation 5-1 and Equation 5-2 can

be used to calculate maximum current and/or input

voltage limits.

EQUATION 5-2:

T_JMAX– T_AMAX

P_DMAX= --------------------------------------

θ_JA

5.3

Layout Considerations

The primary path of heat conduction out of the package

is via the package leads. Therefore, layouts having a

ground plane, wide traces at the pads, and wide power

supply bus lines combine to lower θ_JAand, therefore,

increase the maximum allowable power dissipation

limit.

Where all terms are previously defined.

DS21663C-page 10

TC2054/2055/2186

6.0

6.1

PACKAGING INFORMATION

Package Marking Information

TABLE 6-1:

PART NUMBER CODE AND

TEMPERATURE RANGE

(V)

TC2054

TC2055

TC2186

1.8

2.5

2.7

2.8

2.85

3.0

5.0

SA

SB

SC

SD

SE

SF

SJ

TA

TB

TC

TD

TE

TF

TG

VA

VB

VC

VD

VE

VF

VG

cdef

c&d represents part number code + temperature

range and voltage

e

f

represents year and 2-month period code

represents lot ID number

6.2

Taping Information

Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices

User Direction of Feed

Device

Marking

W

PIN 1

P

Standard Reel Component Orientation

for 713 Suffix Device

(Mark Right Side Up)

Carrier Tape, Number of Components Per Reel and Reel Size:

Package

Carrier Width (W)

Pitch (P)

Part Per Full Reel

Reel Size

5-Pin SOT-23A

8 mm

4 mm

3000

7 in.

DS21663C-page 11

TC2054/2055/2186

5-Lead Plastic Small Outline Transistor (CT) (SOT-23)

E

E1

p

B

p1

D

n

1

α

c

A

A2

φ

L

A1

β

Units

INCHES

NOM

*

MILLIMETERS

NOM

5

Dimension Limits

MIN

MAX

MIN

MAX

n

p

Number of Pins

Pitch

5

.038

0.95

p1

A

Outside lead pitch (basic)

Overall Height

.075

.046

.043

.003

.110

.064

.116

.018

1.90

.035

.057

0.90

1.18

1.45

1.30

0.15

3.00

1.75

3.10

0.55

Molded Package Thickness

Standoff

A2

A1

E

.035

.000

.102

.059

.110

.014

.051

.006

.118

.069

.122

.022

10

0.90

0.00

2.60

1.50

2.80

0.35

1.10

0.08

Overall Width

2.80

Molded Package Width

Overall Length

E1

D

1.63

2.95

Foot Length

L

f

0.45

Foot Angle

0

5

0

5

10

c

Lead Thickness

Lead Width

.004

.014

.006

.017

.008

.020

10

0.09

0.35

0.15

0.43

0.20

0.50

B

a

b

Mold Draft Angle Top

Mold Draft Angle Bottom

0

5

0

5

10

*

Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side.

EIAJ Equivalent: SC-74A

Revised 09-12-05

Drawing No. C04-091

DS21663C-page 12

TC2054/2055/2186

APPENDIX A: REVISION HISTORY

Revision C (May 2006)

• Page 1: Added overtemperature to bullet for over-

current protection in features and general descrip-

tion verbiage.

• Page 3: Added “Thermal Shutdown Die Tempera-

ture” to electrical characteristics table. Changed

codition for “Minimum V_INOperating Voltage”

• Page 3: Added Thermal Characteristics Table.

• Page 5: Added new section 5.1 and new ver-

biage.

• Page 13: Updated package outline drawing.

Revision B (May 2002)

• Data Sheet converted to Microchip standards.

Revision A (May 2001)

• Original Release of this Document under Telcom.

DS21663C-page 13

TC2054/2055/2186

NOTES:

DS21663C-page 14

TC2054/2055/2186

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

Examples:

PART NO.

Device

-XX

X

XXXX

a)

b)

c)

TC2054-1.8VCTTR: 5LD SOT-23-A, 1.8V,

Output

Voltage

Temperature

Range

Package

Tape and Reel.

TC2054-2.85VCTTR:5LD SOT-23-A, 2.85V,

Tape and Reel.

TC2054-3.3VCTTR: 5LD SOT-23-A, 3.3V,

Tape and Reel.

Device:

TC2054: 50 mA LDO with Shutdown and ERROR Output

TC2055: 100 mA LDO with Shutdown and ERROR Output

TC2186: 150 mA LDO with Shutdown and ERROR Output

a)

b)

c)

TC2055-1.8VCTTR: 5LD SOT-23-A, 1.8V,

Tape and Reel.

Output Voltage:

XX

=

1.8V

2.5V

2.7V

2.8V

2.85V

3.0V

3.3V

TC2055-2.85VCTTR:5LD SOT-23-A, 2.85V,

Tape and Reel.

TC2055-3.0VCTTR: 5LD SOT-23-A, 3.0V,

Tape and Reel.

a)

b)

TC2186-1.8VCTTR: 5LD SOT-23-A, 1.8V,

Tape and Reel.

Temperature Range:

Package:

V

=

-40°C to +125°C

TC2186-2.8VCTTR: 5LD SOT-23-A, 2.8V,

Tape and Reel.

CTTR

=

Plastic Small Outline Transistor (SOT-23),

5-lead, Tape and Reel

DS21663C-page 15

TC2054/2055/2186

NOTES:

DS21663C-page 16

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro,

PICSTART, PRO MATE, PowerSmart, rfPIC, and

SmartShunt are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,

SEEVAL, SmartSensor and The Embedded Control Solutions

Company are registered trademarks of Microchip Technology

Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, dsPICDEM,

dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,

FanSense, FlexROM, fuzzyLAB, In-Circuit Serial

Programming, ICSP, ICEPIC, Linear Active Thermistor, Mindi,

MiWi, MPASM, MPLIB, MPLINK, PICkit, PICDEM,

PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo,

PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select

Mode, Smart Serial, SmartTel, Total Endurance, UNI/O,

WiperLock and ZENA are trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona, Gresham, Oregon and Mountain View, California. The

Company’s quality system processes and procedures are for its

PICmicro^®8-bit MCUs, KEELOQ^®code hopping devices, Serial

EEPROMs, microperipherals, nonvolatile memory and analog

products. In addition, Microchip’s quality system for the design and

manufacture of development systems is ISO 9001:2000 certified.

DS21663C-page 17

WORLDWIDE SALES AND SERVICE

AMERICAS

ASIA/PACIFIC

EUROPE

Corporate Office

Australia - Sydney

Tel: 61-2-9868-6733

Fax: 61-2-9868-6755

India - Bangalore

Tel: 91-80-4182-8400

Fax: 91-80-4182-8422

Austria - Wels

Tel: 43-7242-2244-399

Fax: 43-7242-2244-393

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7200

Fax: 480-792-7277

Technical Support:

http://support.microchip.com

Web Address:

www.microchip.com

China - Beijing

Tel: 86-10-8528-2100

Fax: 86-10-8528-2104

Denmark - Copenhagen

Tel: 45-4450-2828

Fax: 45-4485-2829

India - New Delhi

Tel: 91-11-5160-8631

Fax: 91-11-5160-8632

China - Chengdu

Tel: 86-28-8676-6200

Fax: 86-28-8676-6599

France - Paris

Tel: 33-1-69-53-63-20

Fax: 33-1-69-30-90-79

India - Pune

Tel: 91-20-2566-1512

Fax: 91-20-2566-1513

Atlanta

China - Fuzhou

Tel: 86-591-8750-3506

Fax: 86-591-8750-3521

Germany - Munich

Tel: 49-89-627-144-0

Fax: 49-89-627-144-44

Japan - Yokohama

Tel: 81-45-471- 6166

Fax: 81-45-471-6122

Alpharetta, GA

Tel: 770-640-0034

Fax: 770-640-0307

Italy - Milan

Tel: 39-0331-742611

Fax: 39-0331-466781

China - Hong Kong SAR

Tel: 852-2401-1200

Fax: 852-2401-3431

Korea - Gumi

Tel: 82-54-473-4301

Fax: 82-54-473-4302

Boston

Westborough, MA

Tel: 774-760-0087

Fax: 774-760-0088

Netherlands - Drunen

Tel: 31-416-690399

Fax: 31-416-690340

China - Qingdao

Tel: 86-532-8502-7355

Fax: 86-532-8502-7205

Korea - Seoul

Tel: 82-2-554-7200

Fax: 82-2-558-5932 or

82-2-558-5934

Chicago

Itasca, IL

Tel: 630-285-0071

Fax: 630-285-0075

Spain - Madrid

Tel: 34-91-708-08-90

Fax: 34-91-708-08-91

China - Shanghai

Tel: 86-21-5407-5533

Fax: 86-21-5407-5066

Malaysia - Penang

Tel: 60-4-646-8870

Fax: 60-4-646-5086

Dallas

Addison, TX

Tel: 972-818-7423

Fax: 972-818-2924

UK - Wokingham

Tel: 44-118-921-5869

Fax: 44-118-921-5820

China - Shenyang

Tel: 86-24-2334-2829

Fax: 86-24-2334-2393

Philippines - Manila

Tel: 63-2-634-9065

Fax: 63-2-634-9069

Detroit

China - Shenzhen

Farmington Hills, MI

Tel: 248-538-2250

Fax: 248-538-2260

Tel: 86-755-8203-2660

Fax: 86-755-8203-1760

Singapore

Tel: 65-6334-8870

Fax: 65-6334-8850

China - Shunde

Tel: 86-757-2839-5507

Fax: 86-757-2839-5571

Kokomo

Kokomo, IN

Tel: 765-864-8360

Fax: 765-864-8387

Taiwan - Hsin Chu

Tel: 886-3-572-9526

Fax: 886-3-572-6459

China - Wuhan

Tel: 86-27-5980-5300

Fax: 86-27-5980-5118

Taiwan - Kaohsiung

Tel: 886-7-536-4818

Fax: 886-7-536-4803

Los Angeles

Mission Viejo, CA

Tel: 949-462-9523

Fax: 949-462-9608

China - Xian

Tel: 86-29-8833-7250

Fax: 86-29-8833-7256

Taiwan - Taipei

Tel: 886-2-2500-6610

Fax: 886-2-2508-0102

San Jose

Mountain View, CA

Tel: 650-215-1444

Fax: 650-961-0286

Thailand - Bangkok

Tel: 66-2-694-1351

Fax: 66-2-694-1350

Toronto

Mississauga, Ontario,

Canada

Tel: 905-673-0699

Fax: 905-673-6509

02/16/06

DS21663C-page 18


型号：	TC2055-2.85VCTTR713
厂家：	MICROCHIP
描述：	IC,VOLT REGULATOR,FIXED,+2.85V,CMOS,TSOP,5PIN,PLASTIC 光电二极管
文件：	总18页 (文件大小：929K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TC2055-2.85VCTTR713 [MICROCHIP]

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