Datasheet MIC5209 Datasheet (MICREL)

Page 1

MIC5209 Micrel

MIC5209

500mA Low-Noise LDO Regulator

General Description

The MIC5209 is an efficient linear voltage regulator with very low dropout voltage, typically 10mV at light loads and less than 500mV at full load, with better than 1% output voltage accuracy.

Designed especially for hand-held, battery-powered devices, the MIC5209 features low ground current to help prolong battery life. An enable/shutdown pin on SO-8 and TO-263-5 versions can further improve battery life with near-zero shutdown current.

Key features include reversed-battery protection, current limiting, overtemperature shutdown, ultra-low-noise capability (SO-8 and TO-263-5 versions), and availability in thermally efficient packaging. The MIC5209 is available in adjustable or fixed output voltages.

For space-critical applications where peak currents do not exceed 500mA, see the MIC5219.

Features

• Meets Intel® Slot 1 and Slot 2 requirements

• Guaranteed 500mA output over the full operating temperature range

• Low 500mV maximum dropout voltage at full load

• Extremely tight load and line regulation

• Thermally-efficient surface-mount package

• Low temperature coefficient

• Current and thermal limiting

• Reversed-battery protection

• No-load stability

• 1% output accuracy

• Ultra-low-noise capability in SO-8 and TO-263-5

Applications

• Pentium II Slot 1 and Slot 2 support circuits

• Laptop, notebook, and palmtop computers

• Cellular telephones

• Consumer and personal electronics

• SMPS post-regulator/dc-to-dc modules

• High-efficiency linear power supplies

Typical Applications

MIC5209-2.5BS

132

≥ 3.0V

0.1µF

3.3V Nominal-Input Slot-1 Power Supply

ENABLE

SHUTDOWN

OUT

2.2µF

tantalum

MIC5209-5.0BM

1 2 3 4

470pF

(OPTIONAL)

Ultra-Low-Noise 5V Regulator

22µF tantalum

OUT

2.5V ±1%

8 7 6 5

Ordering Information

Part Number Voltage Junct. Temp. Range Package

MIC5209-2.5BS 2.5V –40°C to +125°C SOT-223 MIC5209-3.0BS 3.0V –40°C to +125°C SOT-223 MIC5209-3.3BS 3.3V –40°C to +125°C SOT-223 MIC5209-3.6BS 3.6V –40°C to +125°C SOT-223 MIC5209-4.2BS 4.2V –40°C to +125°C SOT-223 MIC5209-5.0BS 5.0V –40°C to +125°C SOT-223 MIC5209-1.8BM 1.8V 0°C to +125°C SO-8 MIC5209-2.5BM 2.5V –40°C to +125°C SO-8 MIC5209-3.0BM 3.0V –40°C to +125°C SO-8 MIC5209-3.3BM 3.3V –40°C to +125°C SO-8 MIC5209-3.6BM 3.6V –40°C to +125°C SO-8 MIC5209-5.0BM 5.0V –40°C to +125°C SO-8 MIC5209BM Adj. –40°C to +125°C SO-8 MIC5209-2.5BU 2.5V –40°C to +125°C TO-263-5 MIC5209-3.0BU 3.0V –40°C to +125°C TO-263-5 MIC5209-3.3BU 3.3V –40°C to +125°C TO-263-5 MIC5209-3.6BU 3.6V –40°C to +125°C TO-263-5 MIC5209-5.0BU 5.0V –40°C to +125°C TO-263-5 MIC5209BU Adj. –40°C to +125°C TO-263-5

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

August 2, 2000 1 MIC5209

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MIC5209 Micrel

Pin Configuration

GND

TAB

132

IN OUTGND

MIC5209-x.xBS

OUT

BYP

1 2 3 4

GND

SOT-223

Fixed Voltages

TAB

GND

5 BYP 4 OUT 3 GND 2IN 1EN

MIC5209-x.xBM

SO-8

TO-263-5

Fixed Voltages

MIC5209-x.xBU

OUT

ADJ

MIC5209BM

Adjustable Voltage

SO-8

GND

TAB

GND

5 ADJ 4 OUT 3 GND 2IN 1EN

MIC5209BU

TO-263-5

Adjustable Voltage

Pin Description

Pin No. Pin No. Pin No. Pin Name Pin Function

SOT-223 SO-8 TO-263-5

1 2 2 IN Supply Input

TAB 5–8 3 GND Ground: SOT-223 pin 2 and TAB are internally connected. SO-8 pins 5

through 8 are internally connected.

3 3 4 OUT Regulator Output

1 1 EN Enable (Input): CMOS compatible control input. Logic high = enable; logic

low or open = shutdown.

4 (fixed) 5 (fixed) BYP Reference Bypass: Connect external 470pF capacitor to GND to reduce

output noise. May be left open. For 1.8V or 2.5V operation, see “Applica- tions Information.”

4 (adj.) 5 (adj.) ADJ Adjust (Input): Feedback input. Connect to resistive voltage-divider network.

MIC5209 2 August 2, 2000

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MIC5209 Micrel

Absolute Maximum Ratings (Note 1)

Supply Input Voltage (V Power Dissipation (P Junction Temperature (T

all except 1.8V......................................–40°C to +125°C

1.8V only ..................................................0°C to +125°C

Lead Temperature (soldering, 5 sec.) ....................... 260°C

Storage Temperature (T

) ............................ –20V to +20V

) ............... Internally Limited, Note 3

)

) ....................... –65°C to +150°C

Operating Ratings (Note 2)

Supply Input Voltage (V Enable Input Voltage (V Junction Temperature (TJ)

all except 1.8V......................................–40°C to +125°C

1.8V only ..................................................0°C to +125°C

Package Thermal Resistance .................................. Note 3

) ........................... +2.5V to +16V

) .................................. 0V to V

Electrical Characteristics

VIN = V 0°C ≤ TJ ≤ +125°C for 1.8V version; unless noted.

Symbol Parameter Conditions Min Typical Max Units

OUT

∆V

OUT

∆V

OUT/VOUT

∆V

OUT/VOUT

GND

PSRR Ripple Rejection f = 120Hz 75 dB I

LIMIT

∆V

OUT

+ 1.0V; C

OUT

Output Voltage Accuracy variation from nominal V

= 4.7µF, I

OUT

= 100µA; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C except

OUT

–11% –2 2 %

/∆T Output Voltage Note 4 40 ppm/°C

Temperature Coefficient

– V

OUT

Line Regulation VIN = V

Load Regulation I

Dropout Voltage, Note 6 I

OUT

+ 1V to 16V 0.009 0.05 %/V

OUT

0.1 %/V

= 100µA to 500mA, Note 5 0.05 0.5 %

0.7 %

= 100µA1060mV

80 mV

= 50mA 115 175 mV

OUT

250 mV

= 150mA 165 300 mV

OUT

400 mV

= 500mA 350 500 mV

OUT

600 mV

Ground Pin Current, Notes 7, 8 VEN ≥ 3.0V, I

= 100µA80130µA

OUT

170 µA

≥ 3.0V, I

= 50mA 350 650 µA

OUT

900 µA

≥ 3.0V, I

= 150mA 1.8 2.5 mA

OUT

3.0 mA

≥ 3.0V, I

= 500mA 8 20 mA

OUT

25 mA

Ground Pin Quiescent Current, VEN ≤ 0.4V (shutdown) 0.05 3 µA

Note 8

Current Limit V

VEN ≤ 0.18V (shutdown) 0.10 8 µA

= 0V 700 900 mA

OUT

1000 mA

/∆P

Thermal Regulation Note 9 0.05 %/W

Output Noise V Note 10 C

OUT OUT

= 50mA, C

OUT

= 2.5V, I = 2.2µF, C

OUT

= 50mA, 500

= 0

BYP

= 2.2µF, C

OUT

= 470pF 300

BYP

nV/ Hz

August 2, 2000 3 MIC5209

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MIC5209 Micrel

ENABLE Input

ENL

ENH

Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: P

Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load

Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V

Note 7: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of

Note 8: VEN is the voltage externally applied to devices with the EN (enable) input pin. [SO-8 (M) and TO-263-5 (U) packages only.] Note 9: Thermal regulation is the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation

Note 10: C

Enable Input Logic-Low Voltage VEN = logic low (regulator shutdown) 0.4 V

0.18 V

VEN = logic high (regulator enabled) 2.0 V

Enable Input Current V

maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See Table 1 and the “Thermal Considerations” section for details.

range from 100µA to 500mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.

differential.

the load current plus the ground pin current.

effects. Specifications are for a 500mA load pulse at VIN = 16V for t = 10ms.

is an optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust) pin. [SO-8 (M) and TO-263-5 (U)

BYP

packages only].

≤ 0.4V 0.01 –1 µA

ENL

≤ 0.18V 0.01 –2 µA

ENL

≥ 2.0V 5 20 µA

ENH

D(max)

= (T

– TA) ÷ θJA. Exceeding the

J(max)

25 µA

MIC5209 4 August 2, 2000

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MIC5209 Micrel

Block Diagrams

BYP

(optional)

OUT

Bandgap

Ref.

Current Limit

Thermal Shutdown

MIC5209-x.xBS

GND

Low-Noise Fixed Regulator (SOT-223 version only)

BYP

Bandgap

Ref.

REF

OUT

Current Limit

Thermal Shutdown

MIC5209-x.xBM/U

GND

Ultra-Low-Noise Fixed Regulator

Bandgap

Ref.

REF

Current Limit

Thermal Shutdown

MIC5209BM/U [adj.]

GND

OUT

ADJ

BYP

(optional)

OUT

Ultra-Low-Noise Adjustable Regulator

August 2, 2000 5 MIC5209

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MIC5209 Micrel

√

Typical Characteristics

Power Supply

Rejection Ratio

-20

VIN = 6V V

= 5V

OUT

-40

-60

PSRR (dB)

-80

-100

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

FREQUENCY (Hz)

= 100µA

OUT

= 1µF

OUT

10k

100k

Power Supply

Rejection Ratio

VIN = 6V V

-20

-40

-60

PSRR (dB)

-80

-100

= 5V

OUT

= 100µA

OUT

= 2.2µF

OUT

= 0.01µF

BYP

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

10k

FREQUENCY (Hz)

100k

10M

Power Supply

Rejection Ratio

-20

VIN = 6V V

= 5V

OUT

-40

-60

PSRR (dB)

-80

-100

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

FREQUENCY (Hz)

= 1mA

OUT

= 1µF

OUT

10k

100k

Power Supply

Rejection Ratio

VIN = 6V V

-20

-40

-60

PSRR (dB)

-80

-100

= 5V

OUT

= 1mA

OUT

= 2.2µF

OUT

= 0.01µF

BYP

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

10k

FREQUENCY (Hz)

100k

10M

Power Supply

Rejection Ratio

VIN = 6V V

OUT

= 5V

-20

-40

-60

PSRR (dB)

10k

OUT

= 100mA

= 1µF

100k

-80

-100

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

FREQUENCY (Hz)

Power Supply

Rejection Ratio

VIN = 6V V

-20

-40

-60

PSRR (dB)

-80

-100

= 5V

OUT

= 100mA

OUT

= 2.2µF

OUT

= 0.01µF

BYP

1E+11E+21E+3 1E+41E+51E+6 1E+7

100

10k

FREQUENCY (Hz)

100k

10M

Power Supply Ripple Rejection

vs. Voltage Drop

500mA pending

1mA

RIPPLE REJECTION (dB)

10mA

= 100mA

OUT

= 1µF

0 0.1 0.2 0.3 0.4

VOLTAGE DROP (V)

OUT

Power Supply Ripple Rejection

100

RIPPLE REJECTION (dB)

vs. Voltage Drop

500mA pending

90 80

1mA 70 60 50 40

10mA 30 20 10

0 0.1 0.2 0.3 0.4

VOLTAGE DROP (V)

OUT

BYP

= 100mA

OUT

= 2.2µF

= 0.01µF

Noise Performance

10mA, C

OUT

0.1

500mA Pending

0.01

NOISE (µV/√Hz)

0.001 V

0.0001 10

1E+11E+21E+3 1E+41E+51E+61E+7

100

10k 100k 1M 10M

FREQUENCY (Hz)

OUT

= 1µF

= 5V

Dropout Voltage

Noise Performance

Hz)

0.1 500mA Pending

0.01

NOISE (µV/

= 5V

OUT

0.001

= 10µF

OUT

electrolytic

0.0001 10

1E+11E+21E+31E+4 1E+51E+61E+7

100

FREQUENCY (Hz)

100mA

10mA

1mA

10k 100k1M10M

Hz)

NOISE (µV/

0.001

0.0001

Noise Performance

500mA Pending

100mA

0.1

0.01

= 5V

OUT

= 10µF

OUT

electrolytic C

= 100pF

BYP

1E+11E+21E+31E+4 1E+51E+61E+7

100

FREQUENCY (Hz)

1mA

10mA

10k 100k1M10M

vs. Output Current

400

300

200

100

DROPOUT VOLTAGE (mV)

0 100 200 300 400 500

OUTPUT CURRENT (mA)

MIC5209 6 August 2, 2000

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MIC5209 Micrel

Dropout Characteristics

3.5 IL =100µA

3.0

2.5

2.0

1.5

1.0

OUTPUT VOLTAGE (V)

0.5

IL=100mA

IL=500mA

0123456789

INPUT VOLTAGE (V)

Ground Current

vs. Supply Voltage

GROUND CURRENT (mA)

IL=500mA

0123456789

INPUT VOLTAGE (V)

Ground Current

vs. Output Current

GROUND CURRENT (mA)

0 100 200 300 400 500

OUTPUT CURRENT (mA)

Ground Current

vs. Supply Voltage

3.0

2.5

2.0

1.5

1.0

0.5

GROUND CURRENT (mA)

02468

INPUT VOLTAGE (V)

IL=100 mA

IL=100µA

August 2, 2000 7 MIC5209

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MIC5209 Micrel

Applications Information

Enable/Shutdown

Enable is available only on devices in the SO-8 (M) and TO-263-5 (U) packages.

Forcing EN (enable/shutdown) high (> 2V) enables the regulator. EN is compatible with CMOS logic. If the enable/ shutdown feature is not required, connect EN to IN (supply input).

Input Capacitor

A 1µF capacitor should be placed from IN to GND if there is more than 10 inches of wire between the input and the ac filter capacitor or if a battery is used as the input.

Output Capacitor

An output capacitor is required between OUT and GND to prevent oscillation. The minimum size of the output capacitor is dependent upon whether a reference bypass capacitor is used. 1µF minimum is recommended when C (see Figure 1). 2.2µF minimum is recommended when C is 470pF (see Figure 2). Larger values improve the regulator’s transient response.

The output capacitor should have an ESR (equivalent series resistance) of about 5Ω and a resonant frequency above 1MHz. Ultra-low-ESR capacitors can cause a low amplitude oscillation on the output and/or underdamped transient response. Most tantalum or aluminum electrolytic capacitors are adequate; film types will work, but are more expensive. Since many aluminum electrolytics have electrolytes that freeze at about –30°C, solid tantalums are recommended for operation below –25°C.

At lower values of output current, less output capacitance is needed for output stability. The capacitor can be reduced to

0.47µF for current below 10mA or 0.33µF for currents below 1mA.

No-Load Stability

The MIC5209 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications.

Reference Bypass Capacitor

BYP (reference bypass) is available only on devices in SO-8 and TO-263-5 packages.

BYP is connected to the internal voltage reference. A 470pF capacitor (C

) connected from BYP to GND quiets this

BYP

reference, providing a significant reduction in output noise (ultra-low-noise performance). Because C phase margin, the output capacitor should be increased to at least 2.2µF to maintain stability.

The start-up speed of the MIC5209 is inversely proportional to the size of the reference bypass capacitor. Applications requiring a slow ramp-up of output voltage should consider larger values of C consider omitting C

If output noise is not critical, omit C

. Likewise, if rapid turn-on is necessary,

BYP

and leave BYP open.

BYP

is not used

BYP

reduces the

BYP

Thermal Considerations

The SOT-223 has a ground tab which allows it to dissipate more power than the SO-8. Refer to “Slot-1 Power Supply” for details. At 25°C ambient, it will operate reliably at 2W dissipation with “worst-case” mounting (no ground plane, minimum trace widths, and FR4 printed circuit board).

Thermal resistance values for the SO-8 represent typical mounting on a 1"-square, copper-clad, FR4 circuit board. For greater power dissipation, SO-8 versions of the MIC5209 feature a fused internal lead frame and die bonding arrangement that reduces thermal resistance when compared to standard SO-8 packages.

Package

SOT-223 (S) 50°C/W 8°C/W SO-8 (M) 50°C/W 25°C/W TO-263-5 (U) — 2°C/W

θθ

Table 1. MIC5209 Thermal Resistance

Multilayer boards with a ground plane, wide traces near the pads, and large supply-bus lines will have better thermal conductivity and will also allow additional power dissipation.

For additional heat sink characteristics, please refer to Micrel Application Hint 17, “Designing P.C. Board Heat Sinks”, included in Micrel’s

Databook

. For a full discussion of heat sinking and thermal effects on voltage regulators, refer to Regulator Thermals section of Micrel’s

Dropout Voltage Regulators

handbook.

Designing with Low-

Low-Voltage Operation

The MIC5209-1.8 and MIC5209-2.5 require special consideration when used in voltage-sensitive systems. They may momentarily overshoot their nominal output voltages unless appropriate output and bypass capacitor values are chosen.

During regulator power up, the pass transistor is fully saturated for a short time, while the error amplifier and voltage reference are being powered up more slowly from the output (see “Block Diagram”). Selecting larger output and bypass capacitors allows additional time for the error amplifier and reference to turn on and prevent overshoot.

To ensure that no overshoot is present when starting up into a light load (100µA), use a 4.7µF output capacitance and 470pF bypass capacitance. This slows the turn-on enough to allow the regulator to react and keep the output voltage from exceeding its nominal value. At heavier loads, use a 10µF output capacitance and 470pF bypass capacitance. Lower values of output and bypass capacitance can be used, depending on the sensitivity of the system.

Applications that can withstand some overshoot on the output of the regulator can reduce the output capacitor and/ or reduce or eliminate the bypass capacitor. Applications that are not sensitive to overshoot due to power-on reset delays can use normal output and bypass capacitor configurations.

Please note the junction temperature range of the regulator at 1.8V output (fixed and adjustable) is 0˚C to +125˚C.

MIC5209 8 August 2, 2000

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MIC5209 Micrel

Fixed Regulator Circuits

MIC5209-x.xBM

IN OUT

EN BYP

GND

5–8

OUT

3 4

1µF

Figure 1. Low-Noise Fixed Voltage Regulator

Figure 1 shows a basic MIC5209-x.xBM (SO-8) fixed-voltage regulator circuit. See Figure 5 for a similar configuration using the more thermally-efficient MIC5209-x.xBS (SOT-223). A 1µF minimum output capacitor is required for basic fixedvoltage applications.

MIC5209-x.xBM

IN OUT

EN BYP

3 4

GND

5–8

470pF

OUT

2.2µF

Figure 2. Ultra-Low-Noise Fixed Voltage Regulator

Figure 2 includes the optional 470pF noise bypass capacitor between BYP and GND to reduce output noise. Note that the minimum value of C

must be increased when the bypass

OUT

capacitor is used.

Adjustable Regulator Circuits

MIC5209BM

IN OUT

EN ADJ

GND

5–8

3 4

OUT

1µF

Although ADJ is a high-impedance input, for best performance, R2 should not exceed 470kΩ.

MIC5209BM

IN OUT

EN ADJ

GND

5–8

3 4

470pF

OUT

2.2µF

Figure 4. Ultra-Low-Noise Adjustable Application.

Figure 4 includes the optional 470pF bypass capacitor from ADJ to GND to reduce output noise.

Slot-1 Power Supply

Intel’s Pentium II processors have a requirement for a 2.5V ±5% power supply for a clock synthesizer and its associated loads. The current requirement for the 2.5V supply is dependant upon the clock synthesizer used, the number of clock outputs, and the type of level shifter (from core logic levels to

2.5V levels). Intel estimates a worst-case load of 320mA. The MIC5209 was designed to provide the 2.5V power

requirement for Slot-1 applications. Its guaranteed performance of 2.5V ±3% at 500mA allows adequate margin for all systems, and its dropout voltage of 500mV means that it operates from a worst-case 3.3V supply where the voltage can be as low as 3.0V.

MIC5209-x.xBS

IN OUT

GND

2,TAB

OUT

22µF

0.1µF

Figure 5. Slot-1 Power Supply

Figure 3. Low-Noise Adjustable Voltage Regulator

The MIC5209BM/U can be adjusted to a specific output voltage by using two external resistors (Figure 3). The resistors set the output voltage based on the equation:

R2 R1

 



V = 1.242V +

OUT







This equation is correct due to the configuration of the bandgap reference. The bandgap voltage is relative to the output, as seen in the block diagram. Traditional regulators normally have the reference voltage relative to ground; therefore, their equations are different from the equation for the MIC5209BM/U.

A Slot-1 power supply (Figure 5) is easy to implement. Only two capacitors are necessary, and their values are not critical. CIN bypasses the internal circuitry and should be at least

0.1µF. C

provides output filtering, improves transient

OUT

response, and compensates the internal regulator control loop. Its value should be at least 22µF. CIN and C

OUT

may be

increased as much as desired.

Slot-1 Power Supply Power Dissipation

Powered from a 3.3V supply, the Slot-1 power supply of Figure 5 has a nominal efficiency of 75%. At the maximum anticipated Slot 1 load (320mA), the nominal power dissipation is only 256mW.

The SOT-223 package has sufficient thermal characteristics for wide design margins when mounted on a single layer copper-clad printed circuit board. The power dissipation of

August 2, 2000 9 MIC5209

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MIC5209 Micrel

the MIC5209 is calculated using the voltage drop across the device × output current plus supply voltage × ground current. Considering worst case tolerances, the power dissipation could be as high as:

IN(max)

– V

OUT(max)

) × I

OUT

+ V

IN(max)

× I

GND

[(3.6V – 2.375V) × 320mA] + (3.6V × 4mA) PD = 407mW

Using the maximum junction temperature of 125°C and a θ

of 8°C/W for the SOT-223, 25°C/W for the SO-8, or 2°C/W for the TO-263 package, the following worst-case heat-sink thermal resistance (θSA) requirements are:

T T

θθθ

(limit) 209°C/W 184°C/W 160°C/W 123°C/W

J(max) A

=−

θSA SOT-223 201°C/W 176°C/W 152°C/W 115°C/W θSA SO-8 184°C/W 159°C/W 135°C/W 98°C/W θSA TO-263-5 207°C/W 182°C/W 158°C/W 121°C/W

−

40°C50°C60°C75°C

Table 2. Maximum Allowable Thermal Resistance

Table 2 and Figure 6 show that the Slot-1 power supply application can be implemented with a minimum footprint layout. Figure 6 shows the necessary copper pad area to obtain specific heat sink thermal resistance (θSA) values. The

values in Table 2 require much less than 500mm2 of

copper, according to Figure 6, and can easily be accomplished with the minimum footprint.

70 60 50 40 30 20 10

THERMAL RESISTANCE (°C/W)

0 2000 4000 6000

COPPER HEAT SINK AREA (mm2)

Figure 6. PCB Heat Sink Thermal Resistance

MIC5209 10 August 2, 2000

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MIC5209 Micrel

16° 10°

0.84 (0.033)

0.64 (0.025)

1.04 (0.041)

0.85 (0.033)

2.41 (0.095)

2.21 (0.087)

4.7 (0.185)

4.5 (0.177)

6.70 (0.264)

6.30 (0.248)

7.49 (0.295)

6.71 (0.264)

3.71 (0.146)

3.30 (0.130)

3.15 (0.124)

2.90 (0.114)

10°

MAX

0.10 (0.004)

0.02 (0.0008)

0.038 (0.015)

0.25 (0.010)

DIMENSIONS:

MM (INCH)

1.70 (0.067)

1.52 (0.060)

0.91 (0.036) MIN

Package Information

SOT-223 (S)

0.026 (0.65) MAX)

PIN 1

0.157 (3.99)

0.150 (3.81)

0.050 (1.27)

0.064 (1.63)

0.045 (1.14)

TYP

0.197 (5.0)

0.189 (4.8)

0.020 (0.51)

0.013 (0.33)

0.0098 (0.249)

0.0040 (0.102)

SEATING

PLANE

0°–8°

DIMENSIONS:

INCHES (MM)

0.050 (1.27)

0.016 (0.40)

0.244 (6.20)

0.228 (5.79)

45°

0.010 (0.25)

0.007 (0.18)

8-Pin SOP (M)

August 2, 2000 11 MIC5209

Page 12

MIC5209 Micrel

0.405±0.005

0.065±0.010 20°±2°

0.067±0.005 0.032 ±0.003

DIM. = INCH

0.050±0.005

0.360±0.005

TO-263-5 (U)

0.600±0.025

8° MAX

0.015 ±0.002

0.176±0.005

0.060±0.005

SEATING PLANE

+0.004

0.004

–0.008

0.100±0.01

MIC5209 12 August 2, 2000

Page 13

MIC5209 Micrel

MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com

This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or

other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.

August 2, 2000 13 MIC5209