Diodes AP3602A, AP3602B User Manual

Data Sheet

100mA REGULATED CHARGE PUMP AP3602A/B

General Description

The AP3602A/B are regulated step-up DC/DC converters based on charge pump technique. These ICs have the ability to supply 100mA constant output current or 250mA peak output current for 100ms from

3.0V to 5V input (2.7V to 4.5 V for AP3602B), so they can be used as white LEDs driver or flash LED driver.

The AP3602A/B have very low power dissipation and high efficiency in typical applications. Other features include over-temperature protection, low temperature coefficient and etc. to meet some special requirements of hand-held battery powered devices.

Only 3 external capacitors are required in applications, which helps to save space and lower cost. These chips also have a disable terminal to turn on or turn off the chip to ease the use.

The AP3602A/B are available in SOT-23-6 package.

Features

· Low Quiescent Current: 13μA Typical

· Regulated Output Voltage Precision: 4%

· High Output Current:

100mA when V

50mA when V

· High Frequency: up to 1.2 MHz

· Low Shutdown Supply Current: <1

· High Output Peak Current: 250mA for 100ms

· Over Temperature Protection

· Operating Temperature Range: -40

IN

≥2.7V

IN

≥3.0V

μA

o

C to 85oC

Applications

· Mobile Phone Backlight Driver

· Camera Flash LED Driver

· MP3, MP4

· Handheld Device

· Portable Communication Device

SOT-23-6

Figure 1. Package Type of AP3602A/B

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

1

Data Sheet

1

2

34

5

Pin 1 Mark

6

100mA REGULATED CHARGE PUMP AP3602A/B

Pin Configuration

K Package

(SOT-23-6)

V

OUT

GND

SHDN

C+

V

C-

IN

Figure 2. Pin Configuration of AP3602A/B (Top View)

Pin Description

Pin Number Pin Name Function

1

V

OUT

2 GND

3 SHDN

Regulated Output Voltage. V

capacitor which is placed as close to the pin as possible for best performance

Ground. GND should be tied to a ground plane for best performance. The C

should be placed as close to this pin as possible

Active Low Shutdown Input. A low signal on SHDN disables the AP3602A/B, while a high

signal enables the AP3602A/B. SHDN

should be bypassed with a 1μF to 22μF low ESR ceramic

OUT

pin must not be allowed to float

OUT

and C

IN

4C-

5

6C+

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

Flying Capacitor Negative Terminal. The flying capacitor should be placed as close to this pin as possible

IN

which is placed as close to the pin as possible for best performance

Input Supply Voltage. V

V

should be bypassed with a 1μF to 22μF low ESR ceramic capacitor

IN

Flying Capacitor Positive Terminal. The flying capacitor should be placed as close to this pin as possible

2

Data Sheet

3

5

4

2

1

1.25V

OSC

6

S3

S4

S1

S2

COMP

EN

R1

R2

CONTROL

+

-

OTP

100mA REGULATED CHARGE PUMP AP3602A/B

Functional Block Diagram

V

IN

SHDN

Ordering Information

Circuit Type

Output Voltage

A: 5V

B: 4.5V

Figure 3. Functional Block Diagram of AP3602A/B

AP3602

-

E1: RoHS G1: Green

TR: Tape and Reel

Package K: SOT-23-6

C+

C-

V

OUT

GND

Package

SOT-23-6

BCD Semiconductor's products as designated with "E1" suffix in the part number are RoHS compliant. Products with "G1" suffix are available in green packages.

Temperature

Range

-40 to 85

AP3602AKTR-E1 AP3602AKTR-G1 E7T G7T Tape & Reel

o

C

AP3602BKTR-E1 AP3602BKTR-G1 E8T G8T Tape & Reel

Part Number Marking ID

RoHS Green RoHS Green

Packing Type

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

3

Data Sheet

100mA REGULATED CHARGE PUMP AP3602A/B

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Input Voltage V

Output Voltage V

SHDN

Pin Voltage V

Thermal Resistance (Junction to Ambient, no Heat sink) R

Operating Junction Temperature T

Storage Temperature Range T

Lead Temperature (Soldering, 10sec) T

IN

O

SHDN

θJA

J

STG

LEAD

7V

300

150

-65 to 150

260

o

C/W

o

C

ESD (Human Body Model) 2000 V

Note 1: Stresses greater than 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 beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Input Voltage

V

IN

Operating Temperature T

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

AP3602A 2.7 5

AP3602B 2.7 4.5

A

-40 85

4

V

o

C

Data Sheet

100mA REGULATED CHARGE PUMP AP3602A/B

Electrical Characteristics

(C

FLY

=1μF, CIN=C

=10μF, TA=25

OUT

o

C, unless otherwise specified.)

For AP3602A

Parameter Symbol Conditions Min Typ Max Unit

Input Voltage V

Quiescent Current

Output Voltage

Shutdown Supply Current

Ripple Voltage

I

V

RIPPLE

Efficiency

Frequency f

SHDN

Input Threshold

High

SHDN

Input Threshold

Low

Input Current High I

SHDN

Input Current Low I

SHDN

V

Turn-on Time t

OUT

Short-Circuit Current I

IN

I

Q

V

O

SHDN

η

OSC

V

IH

V

IL

IH

IL

ON

SC

VO=5V 2.7 V

VIN=2.7V to 5.0V, IO=0mA,

=VIN, Not Switching

V

SHDN

2.7V<VIN<5V, I

3.0V<V

IN

2.7V<VIN<3.6V, IO=0, V

3.6V<V

IN

≤50mA

O

<5V, I

≤100mA

O

<5.0V, IO=0, V

SHDN

4.8 5.0 5.2

=0V 0.01 1

=0V 2.5

13 30 μA

VIN=2.7V, IO=50mA 25

O

V

μA

mV

VIN=3V, IO=100mA 30

VIN=2.7V, IO=50mA 92 %

Oscillator free running 1.2 MHz

1.4

V

0.3

V

=V

V

SHDN

IN

=GND -1 1

VIN=3V, IO=0mA 0.2

VIN=3V, VO=GND, V

=3V 300 mA

SHDN

-1 1 μA

ms

PP

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

5

Data Sheet

100mA REGULATED CHARGE PUMP AP3602A/B

Electrical Characteristics (Continued)

(C

FLY

=1μF, CIN=C

=10μF, TA=25

OUT

o

C, unless otherwise specified.)

For AP3602B

Parameter Symbol Conditions Min Typ Max Unit

Input Voltage V

Quiescent Current

Output Voltage

Shutdown Supply Current

Ripple Voltage

I

V

RIPPLE

Efficiency

Frequency f

SHDN

Input Threshold

High

SHDN

Input Threshold

Low

Input Current High I

SHDN

Input Current Low I

SHDN

V

Turn-on Time t

OUT

Short-Circuit Current I

IN

I

Q

V

O

SHDN

η

OSC

V

IH

V

IL

IH

IL

ON

SC

VO=4.5V 2.7 V

VIN=2.7V to 4.5V, IO=0mA,

=VIN, Not Switching

V

SHDN

13 30 μA

2.7V<VIN<4.5V, IO<50mA 4.32 4.5 4.68

3.0V<V

2.7V<VIN<3.6V, IO=0, V

3.6V<V

<4.5V, IO<100mA 4.32 4.5 4.68

IN

=0V 0.01 1

SHDN

<4.5V, IO=0, V

IN

=0V 2.5

SHDN

VIN=2.7V, IO=50mA 25

O

V

μA

mV

VIN=3V, IO=100mA 30

VIN=2.7V, IO=50mA 83 %

Oscillator free running 1.2 MHz

1.4

V

0.3

V

=V

V

SHDN

IN

=0V -1 1

VIN=3V, IO=0mA 0.2

VIN=3V, VO=GND, V

=3V 300 mA

SHDN

-1 1 μA

ms

PP

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

6