Diodes AP7165 User Manual

AP7165

600mA LOW DROPOUT REGULATOR WITH POK

Description

The AP7165 is a 600mA, adjustable output voltage, ultra-low dropout linear regulator. The device includes pass e lement, error amplifier, band-gap reference, current limit and thermal shutdown circuitry. The device is turned on when EN pin is set to logic high level. A Power-OK (POK) output is available for power sequence control.

The characteristics of the low dropout voltage and low quiescent current make it suitable for low to medium power applications, for example, laptop computers, audio and video applications, and battery powered devices. The typical quiescent current is approximately 125µA.

Built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. The AP7165 are available in U-DFN3030-10 and SO-8EP packages.

Pin Assignments

IN

1

IN

2 3

POK

NC

4

EN

5

IN

1

Features

• Wide input voltage range: 2.2V – 5.5V

• 300mV very low dropout at 500mA load

• Very low quiescent current (I

• ± 2.5% total accuracy over line, load and temperature

• Adjustable output voltage range: 0.8V to 5.0V

• Very fast transient response

• High PSRR

• Accurate voltage regulation

• Current limiting and short circuit protection

• Thermal shutdown protection

• Stable with any type output capacitor ≥ 4.7µF

• Ambient temperature range -40ºC to +85°C

• U-DFN3030-10 and SO-8EP: Available in “Green”

Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

): 125µA typical

Q

POK

EN

Applications

• Servers and laptops

• Smart phone and PDA

• MP3/MP4

• Bluetooth headset

• Low and medium power applications

• FPGA and DSP core or I/O power

IN

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2

3

4

(Top View)

U-DFN3030-10

(Top View)

SO-8EP

OUT

10

9

OUT FB

8

NC

7

GND

6

8

OUT

7

OUT

6

FB

5

GND

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Typical Application Circuit

V

IN

AP7165

600mA LOW DROPOUT REGULATOR WITH POK

V

OUT

IN

OUT

1µF

Enable

POK

EN

AP7165

FB

GND

R

1

R

2

⎛ ⎜

REFOUT

⎜ ⎝

⎞

R

1

⎟

+=

1VV

⎟

R

2

⎠

Pin Descriptions

Name

IN 1, 2 1, 2

POK 3 3 Power-OK output, active-high open-drain.

EN 5 4 Enable input, active high.

GND 6 5 Ground.

FB 8 6 Output feedback.

OUT 9, 10 7, 8

NC 4, 7 NA No connection.

U-DFN3030-10 SO-8EP

Pin #

Description

Voltage input pins, to be tied together externally. Bypass to ground through at least 1µF capacitor.

Voltage output pins, to be tied together externally. Bypass to ground through at least 4.7µF ceramic capacitor.

10µF

AP7165

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Functional Block Diagram

AP7165

600mA LOW DROPOUT REGULATOR WITH POK

IN

EN

POK

Gate

Driver

Current Limit and Thermal

Shutdown

0.8V

0.744V

OUT

FB

GND

Absolute Maximum Ratings

Symbol Parameter Ratings Unit

ESD HBM Human Body Model ESD Protection 4 KV

ESD MM Machine Model ESD Protection 300 V

VIN

Input Voltage 7 V

V

OUT, FB, POK, EN Voltage Continuous Load Current Internal Limited

T

Jmax

TST

PD

Notes: 2. Ratings apply to ambient temperature at 25°C

Maximum Junction Temperature 150 °C Storage Temperature Range -65 ~ +150 °C

Power Dissipation

U-DFN3030-10 (Note 2, 4) 3.1 W SO-8EP (Note 2, 5) 4.0 W

+0.3

IN

Recommended Operating Conditions

Symbol Parameter Min Max Unit

V

I

OUT

T

IN

A

Input voltage 2.2 5.5 V Output Current 0 600 mA Operating Ambient Temperature -40 +85 °C

AP7165

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V

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AP7165

Electrical Characteristics

(TA = 25oC, V

Symbol Parameter Test Conditions Min Typ. Max Unit

I

Q

I

SHDN

V

ROPOUT

V

REF

I

FB

V

OUT

ΔV

OUT

ΔV

IN

ΔV

/ V

OUT

tST

PSRR Power Supply Rejection Ratio

I

LIMIT

I

SHORT

V V I

EN

VOL

V

POK_TH_UP

V

POK_Hys

POK deglitch

I

POK_LK

T

SHDN

T

HYS

θ

JA

θ

JC

Notes: 3. POK pin must be disconnected from IN pin.

4. Test condition for U-DFN3030-10: Device mounted on FR-4 2-layer board, 2oz copper, with minimum recommended pad on top layer and 6 vias to bottom layer 1.0”x1.5” ground plane.

5. Test condition for SO-8EP: Device mounted on 2" x 2" FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane.

IL IH

= V

IN

OUT

+1V, C

= 1µF, C

IN

OUT

Input Quiescent Current Input Shutdown Current Dropout Voltage FB reference voltage 0.8 V FB leakage ⎯ 0.01 1 µA

Output Voltage Total Accuracy

OUT

V

/

Line Regulation

Load Regulation

OUT

Start-up Time, from EN high to POK high

Current limit Short-circuit Current EN Input Logic Low Voltage 0.4 V EN Input Logic High Voltage 1.4 V EN Input leakage POK output low voltage Force 2mA 100 200 mV

Output voltage (rising) POK threshold Output voltage POK hysteresis 4%

POK leakage current Thermal shutdown threshold 150 °C Thermal shutdown hysteresis 25 °C

Thermal Resistance Junction-toAmbient

Thermal Resistance Junction-to- Case

600mA LOW DROPOUT REGULATOR WITH POK

= 10µF, V

= VIN, unless otherwise stated)

EN

= 0

I

OUT

V V

EN OUT

= 0V, I

≥ 1.5V, I

= 0 (Note 3)

OUT

OU T

= 500mA

Over line, load and temperature

V

= V

IN

I

OUT

I

OUT

V

EN

I

OUT

1kHz, V V

OUT

V

OUT

VIN = 3.3V, V

V

EN

+1V to 5.5V,

OUT

= 1mA from 1mA to 500mA = 0V to 2.0V,

= 100mA, VIN = 3.3V

= 3.3V,

IN

= 1.2V, I = 1.8V, R

OUT

= 0mA

OUT

< 0.2V

= 0.5Ω

= 0V or 5.5V

FB (or OUT for fixed version) rising

V

= 3.3V, V

IN

V

POK

= 5.5V

OUT

= 1.2V

⎯ 125 170 µA

-1 0.01 +1 µA 300 400 mV

-2.5 +2.5 %

0.015 %/V

-1.0 +1.0 %

170 µs

60 dB

600 950 mA

380 mA

⎯ 0.01 1 µA

87% 92% 97%

150 µs

⎯ 0.01 1 µA

U-DFN3030-10 (Note 4) 40 SO-8EP (Note 5) 27

U-DFN3030-10 (Note 4) 9 SO-8EP (Note 5) 4

V V

o

C/W

o

C/W

o

C/W

o

C/W

ref

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OUTPU

T VOLTAG

OUTPU

T VOLTAG

Q

U

CEN

T CUR

REN

T

Q

U

C

T

CUR

R

T

Q

U

CENT

C

U

R

T

Typical Performance Characteristics

3.40

AP7165

600mA LOW DROPOUT REGULATOR WITH POK

1.90

V = 1.8V

OUT

3.35

E (V)

3.30

3.25

3.20

-50 -25 0 50 100 125

25 75

TEMPERATURE (°C)

Output Voltage vs. Temperature

170

V = 1.2V

OUT

160

150

(µA)

I = 300mA

OUT

140

130

120

IES

110

I = 0mA

OUT

100

1.85

E (V)

1.80

1.75

-50 -25 0 50 100 125

25 75

TEMPERATURE (°C)

Output Voltage vs. Temperature

170

V = 1.8V

OUT

160

I = 600mA

OUT

150

140

130

120

I = 300mA

110

QUIESCENT CURRENT (µA)

OUT

I = 0mA

OUT

100

90

-50 -25 0 100 12525 75 INPUT VOLTAGE ( V)

Quiesce nt Current vs. Input Voltage

150 140

V = 3.3V,

IN

V = 1.8V

(µA) EN

EN IES

130

120

110

100

90

OUT

V = 3.3V,

IN

V = 1.2V

OUT

V = 5.0V,

IN

V = 3.3V

OUT

V = 2.2V,

IN

V =1.0V

OUT

90

2.5 3.0 3.5 5.0 5.54.0 4.5 INPUT VOLTAGE (V)

Quiescent Current vs. Input Voltage

150

V = 1.8V

OUT

140

(µA)

V = 3.3V

EN

130

IN

120

IES

V = 2.5V

IN

110

80

70

-50 -25 0 50 100 12525 75 TEMPERATURE (°C)

Quiesce nt Current vs. Temperature

AP7165

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100

0.0 0.1 0.2 0.3 0.5 0.60.4 I (A)

OUT

Quiesce nt C ur r ent vs. I

OUT

March 2012