MCP1525-I/TO - MICROCHIP - Datasheet.Live

MCP1525/41

Features

• Precision Voltage Reference

• Output Voltage s: 2.5 V and 4.096 V

• Initial Accuracy: ±1% (max.)

• Temperature Drift: ±50 ppm/°C (max.)

• Ou tput Current Drive: ±2 mA

• Maximum Input Current: 100 µA @ +25°C (max.)

• Packages: TO-92 and SOT-23-3

• Industrial Temperature Range: -40°C to +85°C

Applications

• Batter y-powered Systems

• Handheld Instruments

• Instrumentation and Process Control

• Test Equipm ent

• Data Acquisition Systems

• Communications Equipment

• Medical Equipment

• Precision Power supplies

• 8-bit, 10-bit, 12-bit A/D Converters (ADCs)

• D/A Converters (DACs)

Typical Application Circuit

Description

The Microchip Technology Inc. MCP1525/41 devices

are 2.5V and 4.096V precision voltage references that

use a combination of an advanced CMOS circuit

design and EPROM trimming to provide an initial

tolerance of ±1% (max.) and temperature stability of

±50 ppm/°C (max.). In addition to a low quiescent

current of 100 µA (max.) at 25°C, these devi ces of fer a

clear advantage over the traditional Zener techniques

in terms of stability across time and temperature. The

output v olt age is 2.5V fo r the M CP152 5 and 4.096V f or

the MCP1541. These devices are offered in SOT-23-3

and TO-92 packages, and are specified over the

industrial temperature range of -40°C to +85°C.

Temperature Drif t

Package Types

Basic Configuration

VSS

VOUT

VIN

VREF

VDD MCP1525

MCP1541

1 µF to 10 µF

CIN

0.1 µF

(optional)

2.475

2.480

2.485

2.490

2.495

2.500

2.505

2.510

2.515

2.520

2.525

-50 -25 0 25 50 75 100

Ambient Tem peratu re (°C)

MCP1525 Output Voltage

(V)

4.040

4.050

4.060

4.070

4.080

4.090

4.100

4.110

4.120

4.130

4.140

MCP1541 Output Voltage

(V)

MCP1525

MCP1541

VSS

VOUT

VIN

VSS VIN

VOUT

MCP1525

MCP1541

TO-92

MCP1525

MCP1541

SOT-23-3

2.5V and 4.096V Voltage References

MCP1525/41

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VIN –V

SS..........................................................................7.0V

Input Current (VIN) .......................................................20 mA

Output Current (VOUT) .............................................. ±20 mA

Continuous Power Dissipation (TA= 125°C)............. 140 m W

All Inputs and Outputs .................... .VSS – 0.6V to VIN +1.0V

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

Maximum Junction Temperature (TJ)..........................+125°C

ESD protection on all pins (HBM) .....................................≥ 4kV

† Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification is not

implied. Exposure to maximum rating conditions for extended

periods may affect device reliability.

DC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, TA=+25°C, V

IN = 5.0V, VSS =GND, I

OUT = 0 mA and CL=1µF.

Parameter Sym Min Typ Max Units Conditions

Output

Output Voltage, MCP1525 VOUT 2.475 2.5 2.525 V 2.7V ≤ VIN ≤ 5.5V

Output Voltage, MCP1541 VOUT 4.055 4.096 4.137 V 4.3V ≤ VIN ≤ 5.5V

Output Voltage Dri ft TCVOUT — 27 50 ppm/°C TA = -40°C to 85°C (Note 1)

Long-Term Output Stability VOUT — 2 — ppm/hr Exposed 1008 hrs @ +125°C

(see Figure 1-1), measured @ +25°C

Load Regulation ΔVOUT/ΔIOUT —0.5 1mV/mAI

OUT = 0 mA to -2 mA

ΔVOUT/ΔIOUT —0.6 1mV/mAI

OUT = 0 mA to 2 mA

ΔVOUT/ΔIOUT ——1.3mV/mAI

OUT = 0 mA to -2 mA,

TA = -40°C to 85°C

ΔVOUT/ΔIOUT ——1.3mV/mAI

OUT = 0 mA to 2 mA ,

TA = -40°C to 85°C

Output Voltage Hysteresis VHYS — 115 — ppm Note 2

Maximum Load Current ISC —±8—mAT

A = -40°C to 85°C, VIN = 5.5V

Input-to-Output

Dropout Voltage VDROP — 137 — mV IOUT = 2 mA

Line Regulation ΔVOUT/ΔVIN — 107 300 µV/V VIN = 2.7V to 5.5V for MCP1525,

VIN = 4.3V to 5.5V for MCP1541

ΔVOUT/ΔVIN — — 350 µV/V VIN = 2.7V to 5.5V for MCP1525,

VIN = 4.3V to 5.5V for MCP1541,

TA = -40°C to 85°C

Input

Input Voltage, MCP1525 VIN 2.7 — 5.5 V TA = -40°C to 85°C

Input Voltage, MCP1541 VIN 4.3 — 5.5 V TA = -40°C to 85°C

Input Current IIN — 86 100 µA No load

IIN — 95 120 µA No load, TA = -40°C to 85°C

Note 1: Output temperature coefficient is measured using a “box” method, where the +25°C output voltage is trimmed as close

to typical as possible. The 85°C output voltage is then again trimmed to zero out the tempco.

2: Output Voltage Hysteresis is defined as the change in output voltage measured at +25°C before and after cycling the

temperature to +85°C and -40°C; refer to Section 1.1.10 “Output Volt age Hysteresis”.

MCP1525/41

AC ELECTRICAL SPECIFICATIONS

TEMPERATURE SPECIFICATIONS

1.1 Specification Descriptions and

Test Circuits

1.1.1 OUTPUT VOLTAGE

Output v oltage is the refere nce volt age that is availabl e

on the output pin (VOUT).

1.1.2 INPUT VOLTAGE

The input (operating) voltage is the range of voltage

that can be applied to the VIN pin and still have the

device produce the designated output voltage on the

VOUT pin.

1.1.3 OUTPUT VOLTAGE DRIFT (TCVOUT)

The output temperature coefficient or voltage drift is a

measure of how much the output voltage (VOUT) will

vary from its initial value with changes in ambient

temperature. The value specified in the electrical

specifications is measured and equal to:

EQUATION 1-1:

Electrical Characteristics: Unless otherwise indicated, TA=+25°C, V

IN = 5.0V, VSS =GND, I

OUT = 0 mA and CL=1µF.

Parameter Sym Min Typ Max Units Conditions

AC Response

Bandwidth BW — 100 — kHz

Input and Load Capacitors (see Figure 4-1)

Input Capacitor CIN —0.1—µFNotes 1

Load Capacitor CL1—10µFNotes 2

Noise

MCP1525 Output Noise Voltage Eno —90—µV

P-P 0.1 Hz to 10 Hz

Eno — 500 — µVP-P 10 Hz to 10 kHz

MCP1541 Output Noise Voltage Eno — 145 — µVP-P 0.1 Hz to 10 Hz

Eno — 700 — µVP-P 10 Hz to 10 kHz

Note 1: The input capacitor is optional; Microchip recommends using a ceramic capacitor.

2: These parts are tested at both 1 µF and 10 µF to ensure proper operation over this range of load capacitors. A wider

range of load capacitor values has been characterized successfully, but is not tested in production.

Electrical Characteristics: Unless otherwise indicated, TA=+25°C, V

IN = 5.0V and VSS = GND.

Parameter Sym Min Typ Max Units Conditions

Temperature Rang es

Specified Temperature Range TA-40 — +85 °C

Operating Temperat ure Range TA-40 — +125 °C Note 1

Storage Temperature Range TA-65 — +150 °C

Thermal Package Resistances

Thermal Resistance, TO-92 θJA — 132 — °C/W

Thermal Resistance, SOT-23-3 θJA — 336 — °C/W

Note 1: These voltage references operate over the Operating Temperature Range, but with reduced performance. In any case,

the internal Junction Temperature (TJ) must not exceed the Absolute Maximum specification of +150°C.

TCVOUT

ΔVOUT VNOM

⁄

ΔTA

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

=ppm °C⁄()

Where:

VNOM =2.5V, MCP1525

VNOM = 4.096V, MCP1541

MCP1525/41

1.1.4 DROPOUT VOLTAGE

The dropout voltage of these devices is measured by

reducing VIN t o the poin t where the output dr ops by 1 %.

Under the se cond itions the dropout vo lt age is equal to:

EQUATION 1-2:

The dropout voltage is affected by ambient

temperature and load current.

In Figure 2-18, the dropout voltage is shown over a

negative and positive range of output current. For

currents above zero milliamps, the dropout voltage is

positive. In this case, the voltage reference is primarily

milliamps, the dropout voltage is negative. As the

output current becomes more negative, the input

current (IIN) reduces. Under this condition, the output

current begins to provide the needed power to the

voltage reference.

1.1.5 LINE REGULATION

Line regulation is a measure of the change in output

voltage (VOUT) as a function of a change in the input

voltage (VIN). This is expressed as ΔVOUT/ΔVIN and is

measured in either µV/V or ppm. For example, a 1 µ V

change in VOUT caused by a 500 mV change in VIN

would net a ΔVOUT/ΔVIN of 2 µV/V, or 2 ppm.

1.1.6 LOAD REGULATION (ΔVOUT/ΔIOUT)

Load regulation is a measure of the change in the

output voltage (VOUT) as a function of the change in

output current (IOUT). Load regulation is usually

measured in mV/mA.

1.1.7 INPUT CURRENT

The input cu rren t (opera tin g curre nt) is the cu rrent that

sinks from VIN to VSS without a load current on the out-

put pin. This c urrent i s af fec ted by tempe rature an d the

output cur rent.

1.1.8 INPUT VOLTAGE REJECTION

RATIO

The Input Voltage Rejecti on Ratio (I VRR) is a measu re

of the change in output voltage versus the change in

input voltage over frequency, as shown in Figure 2-7.

The calculation used for this plot is:

EQUATION 1-3:

1.1.9 LONG-TERM OUTPUT STABILITY

The long -term ou tput st abili ty is measu red by expos ing

the devices to an ambient temperature of 125°C

(Figure 2-9) while configured in the circuit shown in

Figure 1-1. In this test, all ele ctrical specifications of the

devices are measured periodically at +25°C.

FIGURE 1-1: Dynamic Life Test

Configuration.

1.1. 10 OUTPUT VOLTAGE HYSTERES IS

The output voltage hysteresis is a measure of the

output voltage error once the powered devices are

cycled over the entire operating temperature range.

The amount of hysteresis can be quantified by

measuring the chan ge in the +25°C output voltage after

temperat ure excursi ons fro m +25 °C to +85°C to +25°C

and also from +25°C to -40°C to +25°C.

VDROP VIN VOUT

–=

IVRR 20 VIN

VOUT

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

log dB()=

VSS

VOUT

VIN

VIN =5.5V

±2 mA

square wave

@10Hz

MCP1525

MCP1541

1µF

MCP1525/41

2.0 TYPICAL PERFORMANCE CURVES

Note: Unless otherwise indicated, TA= +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL=1µF.

FIGURE 2-1: Output Voltage vs. Ambient

Temperature.

FIGURE 2-2: Load Regulation vs.

Ambient Temp er ature .

FIGURE 2-3: Input Current vs. Ambient

Temperature.

FIGURE 2-4: Line Regulation vs. Ambient

Temperature.

FIGURE 2-5: Output Impedance vs.

Frequency.

FIGURE 2-6: Output Noise Voltage

Density vs. Frequency.

Note: The g r ap hs and t ables prov id ed fol low i ng thi s n ote are a st atistic al s umm ar y based on a l im ite d 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.

2.475

2.480

2.485

2.490

2.495

2.500

2.505

2.510

2.515

2.520

2.525

-50-250 255075100

Ambient Temperature (°C)

MCP1525 Output Voltage

(V)

4.040

4.050

4.060

4.070

4.080

4.090

4.100

4.110

4.120

4.130

4.140

MCP1541 Outpu t Voltage

(V)

MCP1525

MCP1541

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

-50-250 25507510

Ambient Temper atu re (°C)

Load Regulation (mV/mA)

Source C urr ent =

0 mA to 2 mA

Sink Current =

0 mA to -2 mA

MCP152 5 and M CP1 54 1

100

-50 -25 0 25 50 75 10

Ambient Temperature (°C)

Input Current (µ A)

MCP1525

MCP1541

100

120

140

-50-250 25507510

Ambient Temperature (°C)

Line Regulation (µV/V)

MCP1525

VIN = 2.7V to 5.5V

MCP1541

VIN = 4.3V to 5.5V

1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06

Frequency (Hz)

Output Impedance (

)

MCP1525 and MCP1541

IOUT = +2 mA

IOUT = -2 mA

1 10 100 1k 10k 100k 1M

100

1,000

Frequency (Hz)

Output Noise Voltage Density

(μV/



Hz)

0.1 10 1k 10k 100k1 100

MCP1541

MCP1525

MCP1525/41

Note: Unless otherwise indicated, TA= +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL=1µF.

FIGURE 2-7: Input Voltage Rejection

Ratio vs. Frequency.

FIGURE 2-8: Output Voltage vs. Input

Voltage.

FIGURE 2-9: Output Voltage Aging vs.

Time (MCP1525 Device Life Test data)

FIGURE 2-10: MCP1541 Output Voltage

vs. Output Current.

FIGURE 2-11: MCP1525 Output Voltage

vs. Output Current.

FIGURE 2-12: Maximum Load Current vs.

Input Voltage

1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+0

Frequency (Hz)

Input Voltage Rejection Ratio

(dB)

MCP1525

1 10 100 1k 10k 100k

MCP1541

2.498

2.499

2.500

2.501

2.502

2.503

2.504

2.505

2.506

2.5 3.0 3.5 4.0 4.5 5.0 5.5

Input Voltage (V)

MCP1525 Output

Voltage (V)

4.090

4.091

4.092

4.093

4.094

4.095

4.096

4.097

4.098

MCP1541 Output

Voltage (V)

IOUT

= +2 mA

IOUT

= 0 mA

IOUT = -2 mA

-10

-8

-6

-4

-2

0 200 400 600 800 100

Time (hr)

Output Voltage Aging (mV)

Average

-3σ

MCP1525

600 Samples

+3σ

Life Test (TA = +125°C)

4.0950

4.0955

4.0960

4.0965

4.0970

4.0975

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Output Current (mA)

Output Voltage (V)

MCP1541

2.4990

2.4995

2.5000

2.5005

2.5010

2.5015

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Output Current (mA)

Output Voltage (V)

MCP1525

7.0

7.5

8.0

8.5

9.0

9.5

10.0

2.5 3.0 3.5 4.0 4.5 5.0 5.

Input Voltage (V)

Maximum Load Current (mA)

Source

MCP1525

MCP1541

Sink

MCP1525/41

Note: Unless otherwise indicated, TA= +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL=1µF.

FIGURE 2-13: Input Current vs. Input

Voltage.

FIGURE 2-14: MCP1541 0.1 Hz to 10 Hz

Output Noise.

FIGURE 2-15: Turn-on Transient Time.

FIGURE 2-16: MCP1525 Load Transient

Response.

FIGURE 2-17: MCP1525 Line Transient

Response.

FIGURE 2-18: Dropout Voltage vs. Output

Current.

100

2.5 3.0 3.5 4.0 4.5 5.0 5.

Input Voltage (V)

Input Current (µ A)

MCP1525

MCP1541

Time (1 s/div)

Output Noise Voltage

(20 µV/div)

MCP1541 Bandwidth = 0.1 Hz to 10 Hz

Eno = 22 µVRMS = 145 µVP-P

-1

Time (200 µs/div)

Voltage (V)

VOUT, MCP1541

VIN

VOUT, MCP1525

-18

-16

-14

-12

-10

-8

-6

-4

-2

Time (100 µs/div)

Output Current (mA

)

-20

-15

-10

-5

Change in

Output Voltage (mV)

ΔV

OUT

IOUT

MCP1525

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

Time (100 µs/div)

Input Voltage (V)

-8

-6

-4

-2

Change in

Output Voltage (mV)

ΔV

OUT

VIN

MCP1525

-150

-100

-50

100

150

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Outp ut Curr en t (mA)

Dropo ut Vol tag e (mV )

MCP1525 and MCP1541

MCP1525/41

3.0 PIN DESCRIPTIONS

Descriptions of the pins are listed in Table 3-1.

TABLE 3-1: PIN FUNCTION TABLE.

3.1 Input Voltag e (VIN)

VIN functions as the positive power supply input (or

operating input). An optional 0.1 µF ceramic capacitor

can be placed at this pin i f the in put volta ge is too noisy;

it need s to be within 5 mm of this pin. The input volt age

needs to be at least 0 .2V higher than the output voltage

for normal operation.

3.2 Output Voltage (VOUT)

VOUT is an accurate reference voltage output. It can

source and sink small currents, and has a low output

impedance. A load capacitor between 1 µ F and 10 µ F

needs to be located within 5 mm of this pin.

3.3 Ground (VSS)

Normally connected directly to ground. It can be placed

at another voltage as long as all of the voltages shift

with it, and proper b y passing is observed.

MCP1525, MCP1541

(TO-92-3) MCP1525, MCP1541

(SOT-23-3) Symbol Description

31V

IN Input Voltage (or Positive Power Supply)

22V

OUT Output Voltage (or Reference Voltage)

13V

SS Ground (or Negative Power Supply)

MCP1525/41

4.0 APPLICATIONS INFORMATION

4.1 Application Tips

4.1.1 BASIC CIRCUIT CONFIGURATION

The MCP1525 and MCP1541 voltage reference

device s shou ld be appli ed as shown in Figure 4-1 in all

applications.

FIGURE 4-1: Basic Cir cuit Configura tio n.

As shown in Figure 4-1, the input voltage is connected

to the device at the VIN input, with an optional 0.1 µF

ceramic capacitor. This capacitor would be required if

the in pu t vo ltage ha s e xce s s no is e. A 0. 1 µ F ca pac it o r

would reject input voltage noise at approximately

1 to 2 MHz. Noise below this frequency will be amply

rejected by the input voltage rejectio n of the voltage ref-

erence. Noise at frequencies above 2 MHz will be

beyond the bandwidth of the voltage reference and,

consequently, not transmitted from the input pin

through the device to the output.

The load capacitance (CL) is required in order to

stabilize the voltage reference; see Section 4.1.3

“Load Capacitor”.

4.1.2 INPUT (BYPASS) CAPACITOR

The MCP1525 and MCP1541 voltage references do

not require an input capacitor across VIN to VSS.

Howeve r, for ad ded s tab ility and input volt age t ransie nt

noise reduction, a 0.1 µF ceramic capacitor is

recommended, as shown in Figure 4-1. This capacitor

should be close to the device (within 5 mm of the pin).

4.1.3 LOAD CAPACITOR

The output capacitor from VOUT to VSS acts as a

frequenc y c ompen sation for the re ferenc es a nd c annot

be omitted. Use load capacitors between 1 µF and

10 µF to compensate these devices. A 10 µF output

capacitor has slightly better noise, and provides

additional charge for fast load transients, when

compared to a 1 µF output capacitor. This capacitor

should be close to the device (within 5 mm of the pin).

4.1.4 PRINTED CIRCUIT BOARD LAYOUT

CONSIDERATIONS

Mechanical stress due to Printed Circuit Board (PCB)

mounting can cause the output voltage to shift from its

initial value. Devices in the SOT-23-3 package are

generally more prone to assembly stress than devices

in th e TO- 92 pac ka g e. To r e duce s tr e ss -r el ate d ou t put

volt age s hif t s, moun t t he refe rence on lo w-stress ar eas

of the PCB (i.e., away from PCB edges, screw holes

and large components).

4.1.5 OUTPUT FILTERING

If the noise at the outp ut of thes e vo lt age referenc es is

too high for the particular application, it can be easily

filtered with an external RC filter and op amp buffer.

The op amp’s input and output voltage ranges need to

include the reference output voltage.

FIGURE 4-2: Output Noise-Reducing

Filter.

The RC filter values are selected for a desired cutoff

frequency:

EQUATION 4-1:

The values that are shown in Figure 4-2 (10 kΩ and

1 µF) will create a first-order, low-pass filter at the

output of the amplifier. The cu toff frequ ency of this filter

is 15.9 Hz, and the attenuation slope is 20 dB/decade.

The MCP6021 amp lifier isolates the lo ading of this low -

pass filter from the remainder of the application circuit.

This amplifier also provides additional drive, with a

faster response time than the voltage reference.

VSS

VOUT

VIN

VREF

VDD MCP1525

MCP1541

1 µF to 10 µF

CIN

0.1 µF

(optional)

VSS

VOUT

VIN

RFIL

MCP1525

MCP1541

10 µF

10 kW

CFIL

1µF

VDD

VREF

MCP6021

VDD

fC1

2πRFILCFIL

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

MCP1525/41

4.2 Typical Application Circuits

4.2.1 NEGATI VE VO LTAGE REFERENCE

A negative precision voltage reference can be

generated by using the MCP1525 or MCP1541 in the

configuration shown in Figure 4-3.

FIGURE 4-3: Negative Voltage

Reference.

In this circuit, the voltage inversion is implemented

using the MCP606 and two e qual resistors. The voltage

at the output of the MCP1525 or MCP1541 voltage

referenc e drives R1, which is connec ted to the inve rting

input of the MCP606 amplifier. Since the non-inverting

input of the amplifier is biased to ground, the inverting

input w ill also b e close to gro und po ten tial. T he se cond

10 kΩ resistor is placed around the feedback loop of

the ampl ifier . Since the inv erting input of the amplifier is

high-impedance, the current generated through R1 will

also flow through R2. As a consequence, the output

voltage of the amplifier is equal to -2.5V for the

MCP1525 and -4.1 V for the MCP1 541 .

4.2.2 A/D CONVERTER REFERENCE

The MCP1525 and MCP1541 were carefully designed

to provide a voltage reference for Microchip’s 10-bit

and 12-bit families of ADCs. The circuit shown in

Figure 4-4 shows a MCP1541 configured to provid e the

reference to the MCP3201, a 12-bit ADC.

FIGURE 4-4: ADC Reference Circuit.

VSS

VOUT

VIN

MCP1525

MCP1541

10 µF

10 kΩ

VDD =5.0V

VREF

MCP606

VSS = - 5.0V

0.1%

10 kΩ

0.1%

VREF =-2.5V, MCP1525

VREF = -4.096V, MCP1541

VSS

VOUT

VIN

MCP1541

VDD =5.0V

CIN

0.1 µF

MCP3201

10 µF

VREF

IN+

IN–

VIN

10 µF

0.1 µF

to PICmicro®

Microcontroller

MCP1525/41

5.0 PACKAGING INFORMATION

5.1 Package Marking Information

3-Lead TO-92 (Leade d)

3-Lea d SO T-23- 3

XXXXXX

XXYYWW

NNN

XXNN

Example:

MCP

1525I

TO0544

256

VA25

Device I-Temp

Code

MCP1525 VANN

MCP1541 VBNN

Note: Applies to 3-Lead SOT-23.

Legend: XX...X Customer-specific information

Y Year code (last digit of calendar year)

YY Year code (last 2 digits of calendar year)

WW Week code (week of January 1 is week ‘01’)

NNN Alphanu me ric trac ea bility code

Pb-free JEDEC designator for Matte Tin (Sn)

*This package is Pb-free. The Pb-free JEDEC designat or ( )

can be found on the outer packaging for this package.

Note: In the ev ent the fu ll Mic rochip part nu mber ca nnot be m arked o n one lin e, it will

be carried over to the next line, thus limiting the number of available

characters for customer-specific information.

3-Lead TO-92 (Lead Free)

XXXXXX

YWWNNN

Example:

MCP

1525I

TO^^

544256

MCP1525/41

3-Lead Plastic Transistor Outline (TO) (TO-92)

432432

Mold Draft Angle Bottom 654654

0.560.480.41.022.019.016BLead Width 0.510.430.36.020.017.014

Lead Thickness

2.412.292.16.095.090.085RMolded Package Radius 4.954.644.32.195.183.170DOverall Len gth 4.954.714.45.195.186.175E1Overall Width 3.943.623.30.155.143.130ABottom to Package Flat 1.27.050

Pitch 33

Number of Pins MAXNOMMINMAXNOMMINDimen sion Li mits MILLIMETERSINCHES*Units

Tip to Seating Plane L .500 .555 .610 12.70 14.10 15.49

*Controlling Parameter

Mold Draft Angle Top

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: TO-92

Drawing No. C04-101

MCP1525/41

3-Lead Plastic Small Outline Tr ansistor (TT) (SOT23)

10501050

Mold Draft Angle Bottom 10501050

Mold Draft Angle Top 0.510.440.37.020.017.015BLead Width 0.180.140.09.007.006.004

Lead Thickness 10501050

Foot Angle 0.550.450.35.022.018.014LFoot Length 3.042.922.80.120.115.110DOverall Length 1.401.301.20.055.051.047E1Molded Package Width 2.642.372.10.104.093.083EOverall Width 0.100.060.01.004.002.000A1Standoff § 1.020.950.88.040.037.035A2Molded Package Thickness 1.121.010.89.044.040.035AOverall Height 1.92.076

Outside lead pitch ( basi c) 0.96

.038

Pitch 33

Number of Pins MAXNOMMINMAXNOMMINDimen sion Li mits MILLIMETERSINCHES*Units

* Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: TO-236

Drawing No. C04-104

§ Significant Characteristic

MCP1525/41

NOTES:

© 2005 Microchip Technology Inc. DS21653B-page 15
MCP1525/41
APPENDIX A: REVISION HISTORY
Revision B (February 2005)
The following is the list of modifications:
1. Added bandwidth and capacitor specifications
(Section 1.0 “Electrical Characteristics”).
2. Moved  Section 1.1 “Specification Descrip-
tions and Test Circuits” to the specifications
section (Section 1.0 “Electrical Characteris-
tics”).
3. Corrected plots in Section 2.0 “Typical Perfor-
mance Curves”.
4. Added Section 3.0 “Pin Descriptions” .
5. Corrected package mar kings in 
Section 5.0 “Packaging Information”.
6. Added Appendix A: “Revision History”.
Revision A (July 2001)
• Original Release of this Document.

MCP1525/41

NOTES:

MCP1525/41

PRODUCT IDENTIFICATION SYSTEM

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

Device MCP1525: = 2.5V Voltage Reference

MCP1541: = 4.096 Voltage Reference

Temp er atu re Rang e I = -40°C to +85°C

Package TO = TO-92, Plastic Transistor Outline, 3-Lead

TT = SOT23, Plastic Small Outline Transistor, 3-Lead

PART NO. X/XX

PackageTemperature

Range

Device

Examples:

a) MCP1525T-I/TT: Tape and Reel,

Industrial Temperature,

SOT23 package.

b) MCP1525-I/TO: Industrial Temperature,

TO-92 package.

c) MCP1541T-I/TT: Tape and Reel,

Industrial Temperature,

SOT23 package.

d) MCP1541-I/TO: Industrial Temperature,

TO-92 package.

MCP1525/41

NOTES:

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 WAR-

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Microchip disclaims all liability arising from this information and

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written approval by Microchip. No licenses are conveyed,

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Trademarks

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dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICST ART,

PRO MATE, PowerSmart, rfPIC, and SmartShunt are

registered trademarks of Microchip Technology Incorporated

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Endurance are trademarks of Microchip Technology

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All other trademarks mentioned herein are property of their

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U.S.A. , Al l Rig hts Rese rved.

Printed on recycled paper.

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 product s 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 Digi tal Mill ennium 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.

Microchip received ISO/TS-16949:2002 quality system certification for

its worldwide headquarters, design and wafer fabrication facilities in

Chandler and Tempe, Arizona and Mountain View, California in

October 2003. The Company’s quality system processes and

procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hoppi ng

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.

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10/20/04