AME AME5110AEEV150Y, AME5110AEEV150Z, AME5110AEEV180Y, AME5110AEEV180Z, AME5110BEEVADJY Schematic [ru]

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n General Description

The AME5110 family of Fixed Frequency,High Efficiency,
Synchronous Buck, DC-DC Converters, apply the latest
innovations in Current-Mode Technology. Available in SOT­25 package, these devices are typically twice as efficient

as standard LDO’ s, making them well suited for most

portable applications.

The AME5110 is simple to use. As with standard

LDO’ s,(1) Input, and (1) Output capacitor are required.
The only other element is a small, low cost, 2.2µH induc-

tor. The AME5110 is availabe with fixed output voltages
of 1.5V and 1.8V, or adjustable at 600mA. Using a propri-

etary “ Extreme Green” Technology, battery life is maxi-

mized with Frequency Foldback at light Load, and 100%
duty when Vin approaches Vout.

n Features

Buck DC-DC Converter

n Typical Application

Fixed Voltage Version

V

IN

C

IN

4.7µF

CER

IN

AME5110

EN

SW

OUT

GND

2.2µH

V

C

OUT

10µF

CER

OUT

l High Efficiency “ Extreme Green”

l 2.5V to 5.5V Input

l Short Circuit Protection

l Over-Temperature Shutdown

l Under-Volatge Lockout

l Superb Transient Response

l All AME’ s Lead Free Products Meet RoHS

Standards

n Applications

l Cellular Phones

l Digital Cameras

l Portable Electronics

l USB Devices

l MP3 Players
l LDO Replacement

V

IN

C

IN

4.7µF

CER

V

OUT=VFB

Adjustable Voltage Version

2.2µH

IN

AME5110

EN

(R1+R2)/R2

GND

SW

FB

22pF

R1

R2

V

OUT

C

OUT

10µF

CER

Rev. B.01

1

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n Function Diagram

OUT-SENSE

5

0.6V
REF

1

RUN

ERROR

AMP

AMP

SLOPE
COMP

Light-Load /
Short-Circuit
Frequency
Foldback

OSC

COMP

R

LATCH

S

Buck DC-DC Converter

4

V

IN

AMP

Q

SYNC
SWITCH

COMP

2

GND

SW

3

2

Rev. B.01

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n Pin Configuration

SOT-25

Top View

5 4

AME5110

1 32

n Pin Description

AME5110AEEVxxx

1. EN

2. GND

3. SW

4. IN

5. OUT

* Die Attach:

Conductive Epoxy

Buck DC-DC Converter

SOT-25

Top View

5 4

AME5110

1 32

AME5110BEEVADJ

1. EN

2. GND

3. SW

4. IN

5. FB

* Die Attach:

Conductive Epoxy

Pin Number

AME5110AEEVxxx AME5110BEEVADJ

1 1 EN

2 2 GND Ground Pin

3 3 SW

4 4 IN

N/A 5 FB

5 N/A OUT Output Voltage for fixed version

Pin Name

Pin Description

Enable Control Input.
Forcing this pin above 1.5V enables the part. Forcing this
pin below 0.3V shuts down the device. In shutdown, all

functions are disabled drawing <1µA supply current.

Do not leave EN floating.

Switch Node Connection to Inductor.
This pin connects to the drains of the internal main and
synchronous power MOSFET switches.

Main Supply Pin.

Must be closely decoupled to GND, Pin2, with a 2.2µF or

greater ceramic capactior.

Feedback Pin.
Receives the feedback voltage from an external resistive
divider across the output.

Rev. B.01

3

AME, Inc.

A

1. EN

E:

-40OC to 85

O

C

E:

SOT-2X

V:5150:

1.5V

Z:

Lead free

2. GND

180:

1.8VY:Lead free

3. SW

ADJ:

Adjustable

& Low profile

4. IN

5. OUT

B

1. EN

2. GND

3. SW

4. IN

5. FB

600mA / 1.2MHz PWM

AME5110

n Ordering Information

AME5110 x x x x xxx x

Pin

Configuration

(SOT-25)

Operating Ambient

Temperature Range

Package Type

Buck DC-DC Converter

Special Feature

Output Voltage

Number of Pins

Package Type

Operating Ambient Temperature Range

Pin Configuration

Number

of

Pins

Output Voltage Special Feature

(SOT-25)

n Ordering Information

Part Number Marking* Output Voltage Package

AME5110AEEV150Y BARww 1.5V TSOT-25

AME5110AEEV150Z BARww 1.5V SOT-25

AME5110AEEV180Y BASww 1.8V TSOT-25

AME5110AEEV180Z BASww 1.8V SOT-25

AME5110BEEVADJY BATww ADJ TSOT-25

AME5110BEEVADJZ BATww ADJ SOT-25

Note: ww represents the date code and pls refer to Date Code Rule page on Package Dimension.
* A line on top of the first letter represents lead free plating such as BARww.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.

4

Operating Ambient

Temperature Range

-40OC to 85OC

-40OC to 85OC

-40OC to 85OC

-40OC to 85OC

-40OC to 85OC

-40OC to 85OC

Rev. B.01

AME, Inc.

600mA / 1.2MHz PWM

AME5110

Buck DC-DC Converter

n Absolute Maximum Ratings

Parameter Symbol Maximum Unit

Input Supply Voltage V

EN, FB Voltages VEN,V

SW Voltage V

IN

FB

SW

ESD Classification

Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
* HBM C: 4000V+

GND-0.3 to 6 V

GND-0.3 to V

IN

GND-0.3 to VIN+0.3 V

C*

n Recommended Operating Conditions

Parameter Symbol Rating Unit

Ambient Temperature Range T

A

- 40 to 85

V

o

C

Junction Temperature Range T

Storage Temperature Range T

J

STG

n Thermal Information

Parameter Package Die Attach Symbol Maximum Unit

Thermal Resistance*
(Junction to Case)

Thermal Resistance
(Junction to Ambient)

Internal Power Dissipation P

Maximum Junction Temperature

Solder Iron (10 Sec)**

* Measure θ

on center of molding compound if IC has no tab.

JC

** MIL-STD-202G210F

SOT-25

Conductive Epoxy

- 40 to 125

- 65 to 150

θ

JC

θ

JA

D

o

C

o

C

81

260

o

C / W

o

C / W

400 mW

150

350

o

C

o

C

Rev. B.01

5

AME, Inc.

OUT

OUT

5110BEEVADJY

600mA / 1.2MHz PWM

AME5110

n Electrical Specifications

TA=25oC. VIN=3.6V unless otherwise specified.

Parameter Symbol Min Typ Max Units

Input Volatge V

Feedback Current I

Regulated Feedback
Voltage

Feedback Voltage
Line Regulation

Regulated Output Voltage

Output Voltage
Line Regulation

V

∆V

REG

IN

FB

FB

FB

OUT

LINE

TA= 0oC to 85oC 0.5865 0.6 0.6280

TA= -40oC to 85oC 0.5820 0.6 0.6300

VIN=2.5V to 5.5V

VIN=2.5V to 5.5V

VIN=3V, VFB=0.5V

Duty Cycle < 35%

Buck DC-DC Converter

Test Condition

2.5 5.5 V

-30 +30 nA

TA=25oC 0.5880 0.6 0.6250

V

=1.5V,

OUT

I

=100mA

V

=1.8V,

OUT

I

=100mA

AME

5110BEEVADJZ

and

AME

5110BEEVADJY

AME

5110AEEVxxxZ

and

AME

5110AEEVxxxY

AME

5110BEEVADJZ

and

AME

0.04 0.4 %/V

1.455 1.5 1.545

1.746 1.8 1.854

V

VV

%/V0.40.04

Switch Current Limit I

Output Voltage
Load Regulation

REG

Shutdown Current I

Quiescent Current

Oscillator Frequency f

R

of P-Channel FET R

DSON

R

of N-Channel FET R

DSON

DSON(P)

DSON(N)

Switch Leakage Current I

EN Input Threshold (High) V

EN Input Threshold (Low) V

EN Input Current I

CL

SD

I

Q

OSC

SW

EH

EL

EN

LOAD

VFB=0.5V or V

1.7

VIN=3V, V

OUT

=90%

Duty Cycle < 35%

AME

5110AEEVxxxZ

and

AME

5110AEEVxxxY

VEN=0V, VIN=4.2V TA= -40oC to 85oC 0.1 1

=90%

OUT

VEN=VIN=4.2V

VIN=2.5V & I

VFB=0V or V

ISW=100mA

ISW= -100mA

OUT

VEN=0V,

TA= -40oC to 85oC

=100mA

=0V

OUT

-1 +1 µA

350 500

1.2 MHz

310 kHz

0.4 0.5 Ω

0.35 0.45 Ω

VSW=0V or 5V,VIN=5V

TA= -40oC to 85oC

TA= -40oC to 85oC

TA= -40oC to 85oC

1.5

0.3

-1 +1 µA

A

%5

µA

V

6

Rev. B.01

AME, Inc.

600mA / 1.2MHz PWM

AME5110

0.7

0.6

0.5

0.4

0.3

0.2

Shutdown Current (µA)

0.1

0

2.5 2.7 3 3.6 4.2 4.5 5 5.5

1.6

1.4

Shutdown Current vs V

V

(V)

IN

IN

EN=0V

I

LOAD

TA=25oC

EN Threshold-Turn On vs. V

=0A

IN

Buck DC-DC Converter

Output Voltage vs. Load Current

1.6

1.575

1.55

1.525

1.5

1.475

1.45

Output Voltage (V)

1.425

VIN=3.6V
TA=25oC

1.4
0 100 200 300 400 500 600 700 800 900 1000 1100

Load Current (mA)

EN Threshold-Turn Off vs. V

1.6

1.4

IN

1.2

1

0.8

0.6

0.4

4.5

VIN=3.6V
TA=25oC

5

5.5

0.2

EN Threshold-Turn On (V)

0

2.5

2.7

3 3.6 4.2

VIN (V)

1.2

1

0.8

0.6

0.4

0.2

EN Threshold-Turn Off (V)

0

2.5 2.7 3 3.6 4.2 4.5 5 5.5

VIN (V)

Supply Current vs Supply Voltage Oscillator Frequency vs. Supply Voltage

160

140

120

100

80

60

40

Supply Current (µA)

20

0

2.5 3 3.5 4 4.5 5 5.5

V

OUT

I

LOAD

TA=25oC

Input Voltage (V)

=1.5V

=0A

1.8

1.6

1.4

1.2

1

0.8

0.6

0.4

Oscillator Frequency (MHz)

0.2

2.5 2.7 3 3.6 4.2 4.5 5 5.5

Supply Voltage (V)

VIN=3.6V
TA=25oC

V

OUT

I

LOAD

TA=25oC

=1.5V

=100mA

Rev. B.01

7

AME, Inc.

600mA / 1.2MHz PWM

AME5110

0.006

0.005

0.004

0.003

0.002

0.001

EN Leakage Current (µA)

0

2.5 2.7 3.6 4.2 4.5 5 5.5

0.42

0.40

0.38

(Ω)

0.36

DSO N

R

0.34

0.32

0.30
2 2.5 3 3.5 4 4.5 5

EN Leakage Current vs. V

VIN (V)

R

vs Input Voltage

DSON

MAIN

SWITCH

SYNCHRONOUS

SWITCH

Input Voltage (V)

IN

VIN=3.6V

EN=0V

TA=25oC

V

=1.5V

OUT

TA=25oC

Buck DC-DC Converter

Supply Current vs. Temp

120

110

100

90

80

70

60

Supply Current (µA)

50

40

-50 -40 -25 0 25 50 75 100 125

Temperature (oC)

EN Threshold-Turn On vs. Temp

1.6

1.4

1.2

1

0.8

0.6

0.4

0.2

EN Threshold-Turn On (V)

0

-50 -40 -25 0 25 50 75 100 125

Temperature (oC)

VIN=EN=3.6V

V

=1.5V

OUT

I

=0mA

LOAD

VIN=3.6V

V

=1.5V

OUT

I

=0mA

LOAD

V

vs. Temperature

OUT

1.54

1.52

1.5

1.48

(V)

1.46

OUT

V

1.44

1.42

1.4

-50 -40 -25 0 25 50 75 100 125

VIN=EN=3.6V

V

=1.5V

OUT

I

=100mA

LOAD

Temperature (oC)

8

EN Threshold-Turn Off vs. Temp

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

EN Threshold-Turn Off (V)

0.0

-50 -40 -25 0 25 50 75 100 125

Temperature (oC)

VIN=3.6V

V

=1.5V

OUT

I

=0mA

LOAD

Rev. B.01

AME, Inc.

600mA / 1.2MHz PWM

AME5110

0.025

0.02

0.015

0.01

0.005

EN Leakage Current (µA)

0

-50 -40 -25 0 25 50 75 100 125

Buck DC-DC Converter

EN Leakage Current vs. Temp

Temperature (oC)

Discontinuous Operation

SW

Vout

I

L

VIN=3.6V
V

OUT

I

LOAD

TA=25oC

=1.5V

=50mA

1µ S/DIV

2V/div

20mV/div
AC Coupled

100mA/div

Rev. B.01

9

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n Date Code Rule

Marking Date Code

A A A W W xxx0

A A A W W xxx1

A A A W W xxx2

A A A W W xxx3

A A A W W xxx4

A A A W W xxx5

A A A W W xxx6

A A A W W xxx7

A A A W W xxx8

A A A W W xxx9

Buck DC-DC Converter

Year

n Tape and Reel Dimension

SOT-25

P

AME AME

PIN 1

Carrier Tape, Number of Components Per Reel and Reel Size

Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size

SOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm

W

10

Rev. B.01

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n Tape and Reel Dimension

TSOT-25

P

AME AME

PIN 1

Carrier Tape, Number of Components Per Reel and Reel Size

Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size

Buck DC-DC Converter

W

TSOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm

Rev. B.01

11

AME, Inc.

600mA / 1.2MHz PWM

AME5110

n Package Dimension

SOT-25

Top View Side View

D

E

H

S1

e

Front View

A

L

θ 1

Buck DC-DC Converter

SYMBOLS

A

A

1

b 0.30 0.55 0.0118 0.0217

D 2.70 3.10 0.1063 0.1220

E 1.40 1.80 0.0551 0.0709

e

H 2.60 3.00 0.10236 0.11811

L

θ 1

S

1

MILLIMETERS INCHES

MIN MAX MIN MAX

1.20REF 0.0472REF

0.00 0.15 0.0000 0.0059

1.90 BSC 0.07480 BSC

0.37BSC 0.0146BSC

o

0

0.95BSC 0.0374BSC

10

o

o

0

10

o

TSOT-25

E

H

b

Top View Side View

D

S1

e

Front View

A1

A

SYMBOLS

MILLIMETERS INCHES

L

A+A

1

MIN MAX MIN MAX

0.90 1.25 0.0354 0.0492

b 0.30 0.50 0.0118 0.0197

c 0.09 0.25 0.0035 0.0098

D 2.70 3.10 0.1063 0.1220

E 1.40 1.80 0.0551 0.0709

θ

1

e

1.90 BSC 0.07480 BSC

H 2.40 3.00 0.09449 0.11811

L

θ 1

S

1

0.35BSC 0.0138BSC

o

0

10

o

o

0

0.95BSC 0.0374BSC

10

o

12

b

A1

Rev. B.01

www.ame.com.tw

E-Mail: [e-mail]

Life Support Policy:

These products of AME, Inc. are not authorized for use as critical components in life-support

devices or systems, without the express written approval of the president

of AME, Inc.

AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and

advises its customers to obtain the latest version of relevant information.

 AME, Inc. , November 2006

Document: 2073-DS5110-B.01

Corporate Headquarter U.S.A. (Subsidiary)

AME, Inc. Analog Microelectronics, Inc.

2F, 302 Rui-Guang Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201

Taipei 114, Taiwan. Santa Clara, CA. 95054-2438

Tel: [phone] Tel : [phone]

Fax: [phone] Fax: [phone]