SGM3110-5.0YN6/TR - Shengbang Microelectronics Co., Ltd.

MicroPower

SGM3110 Regulated Charge Pump

GENERAL DESCRIPTION

The SGM3110 is a MicroPower switched capacitor

voltage converter that delivers a regulated output. No

external inductor is required for operation.

The SGM3110 can deliver up to 100mA to the voltage

regulated output. It features very low quiescent current

and high efficiency over a large portion of its load range,

making this device ideal for battery-powered

applications. Furthermore, the combination of few

external components and small package size keeps the

total converter board area to a minimum in

space-restricted applications.

The SGM3110 uses a pulse skipping technique to provide

a regulated output from a varying input supply. The

SGM3110 contains a thermal management circuit to

protect the device under continuous output short-circuit

conditions.

The SGM3110 has lead (Pb) free SOT23-6 package and is

rated over the -40°C to +85°C temperature range.

APPLICATIONS

Cellular Phones

Digital Cameras

Handheld Electronics

LED/Display Backlight Driver

LEDs for Camera Flash

Portable Communication Devices

MP3 Players

GPS Receivers

PDAs

FEATURES

− Step-Up Voltage Converter

− Input Voltage Range:

SGM3110-5.0: 2.7 to 5.0V

SGM3110-4.5: 2.7 to 4.5V

− MicroPower Consumption: 60µA

− Fixed 5V, 4.5V ± 4% Output

− Peak Current 250mA for 100ms

− High Frequency 750kHz Operation

− Logic-Controlled Shutdown

− Short-Circuit/Over-Temperature Protection

− Lead (Pb) Free SOT23-6 Package

PIN CONFIGURATIONS（TOP VIEW）

1

2

34

6C+

VOUT

SOT23-6

GND

C-

SGM3110

5VIN

3110(A)

SHDN

TYPICAL APPLICATION

VOUT

GND

SHDN C-

C+

VIN

COUT = 10µF

CIN = 10µF

VOUT

VIN

1µF

ON/OFF

Preliminary Data sheet

Apr. 2007

Shengbang Microelectronics Co, Ltd

Tel: 86/451/84348461

www.sg-micro.com

SGM3110

2

ELECTRICAL CHARACTERISTICS

(TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C, CFLY = 1µF, CIN = 10µF, COUT = 10µF).

PARAMETER SYMBOL CONDITIONS

MIN TYP(1) MAX UNITS

SGM3110-5.0

Input Voltage Range VIN VOUT = 5.0V 2.7 VOUT V

2.7V < VIN < 5V, IOUT ≤ 50mA 4.8 5.0 5.2

Output Voltage VOUT 3.0V < VIN < 5V, IOUT ≤ 100mA 4.8 5.0 5.2 V

Quiescent Power Supply Current IQ 2.7V < VIN < 5V, IOUT = 0mA, SHDN = VIN 60 68 µA

2.7V < VIN < 3.6V, IOUT = 0mA, VSHDN = 0 0.2 1

Shutdown Supply Current ISHDN 3.6V < VIN < 5V, IOUT = 0mA, VSHDN = 0 1

µA

VIN = 2.7V, IOUT = 50mA 15

Ripple Voltage VRIPPLE VIN = 3V, IOUT = 100mA 88

mVP-P

Efficiency η VIN = 2.7V, IOUT = 50mA 91 %

Frequency fOSC Oscillator Free Running 750 kHz

SHDN Input Threshold High VIH 1.4

SHDN Input Threshold Low VIL 0.4

V

SHDN Input High Current IIH SHDN = VIN -1 +1 µA

SHDN Input Low Current IIL SHDN = GND -1 +1 µA

Turn-On Time TON VIN = 3V, IOUT = 0mA 0.3 ms

SGM3110-4.5

Input Voltage Range VIN VOUT = 4.5V 2.7 VOUT V

2.7V < VIN < 4.5V, IOUT ≤ 50mA 4.32 4.5 4.68

Output Voltage VOUT 3.0V < VIN < 4.5V, IOUT ≤ 100mA 4.32 4.5 4.68 V

Quiescent Power Supply Current IQ 2.7V < VIN < 4.5V, IOUT = 0mA, SHDN = VIN 60 68 µA

2.7V < VIN < 3.6V, IOUT = 0mA, VSHDN = 0 0.2 1

Shutdown Supply Current ISHDN 3.6V < VIN < 4.5V, IOUT = 0mA, VSHDN = 0 1

µA

VIN = 2.7V, IOUT = 50mA 15

Ripple Voltage VRIPPLE VIN = 3V, IOUT = 100mA 88

mVP-P

Efficiency η VIN = 2.7V, IOUT = 50mA 83 %

Frequency fOSC Oscillator Free Running 750 kHz

SHDN Input Threshold High VIH 1.4

SHDN Input Threshold Low VIL 0.4

V

SHDN Input High Current IIH SHDN = VIN -1 +1 µA

SHDN Input Low Current IIL SHDN = GND -1 +1 µA

Turn-On Time TON VIN = 3V, IOUT = 0mA 0.3 ms

Specifications subject to change without notice.

SGM3110

3

PACKAGE/ORDERING INFORMATION

ORDER NUMBER PACKAGE

DESCRIPTION

PACKAGE

OPTION

MARKING

INFORMATION

SGM3110-5.0YN6/TR SOT23-6 Tape and Reel, 3000 3110

SGM3110-4.5YN6/TR SOT23-6 Tape and Reel, 3000 3110A

ABSOLUTE MAXIMUM RATINGS

VIN to GND ..................................................-0.3V to 6 V

VOUT to GND ...............................................-0.3V to 6 V

SHDN to GND ............................................-0.3V to 6 V

Storage Temperature Range.............. –65℃ to +150℃

Junction Temperature ...........................................160℃

Operating Temperature Range ........ –40℃ to +85℃

Power Dissipation, PD @ TA = 25℃

SOT23-6 .................................................................0.34W

Package Thermal Resistance

SOT23-6, θJA ..................................................... 250 /W℃

Lead Temperature Range (Soldering 10 sec)

................................................. 260℃

ESD Susceptibility

HBM........................................................................2000V

MM............................................................................400V

NOTES

1. Stresses above those listed under Absolute Maximum

Ratings may cause permanent damage to the device. This

is a stress rating only; functional operation of the device at

these or any other conditions above those indicated in the

operational section of this specification is not implied.

Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

CAUTION

This integrated circuit can be damaged by ESD.

Shengbang Micro-electronics recommends that all

integrated circuits be handled with appropriate

precautions. Failure to observe proper handling and

installation procedures can cause damage.

ESD damage can range from subtle performance

degradation to complete device failure. Precision

integrated circuits may be more susceptible to

damage because very small parametric changes

could cause the device not to meet its published

specifications.

PIN DESCRIPTION

NAME FUNCTION

VOUT Regulated output pin.

GND Ground

SHDN Shutdown input. Logic low signal disables the converter.

C- Flying capacitor negative terminal.

VIN Input supply pin.

C+ Flying capacitor positive terminal.

SGM3110

4

TYPICAL PERFORMANCE CHARACTERISTICS

At VS = +5.0V, TA = +25℃, VIN = 3V, CIN = COUT = 10µF, CFLY = 1µF, unless otherwise noted.

Startup Time with 50mA Load

Time (100µs/div)

V

OUT

(1Vdiv/) SHDN(1V/div)

Startup Time with 100mA Load

Time (100µs/div)

V

OUT

(1Vdiv/) SHDN (1V/div)

Output Ripple with I

OUT

= 50mA

Time (0.5µs/div)

V

OUT

AC Coupled(10mV/div)

V

IN

= 2.7V

Output Ripple with I

OUT

= 100mA

Time (2µs/div)

VOUT AC Coupled(50mV/div)

V

IN

= 3.0V

Load Transient Response for 50mA

Time (50µs/div)

V

IN

= 2.7V

I

OUT

0m

A

to 50m

A

(20mA/div)

V

OUT

AC

Coupled

(50mV/div)

Load Transient Response for 100mA

Time (50µs/div)

V

IN

= 3.0V

I

OUT

0m

A

to 100m

A

(50mA/div)

V

OUT

AC

Coupled

(80mV/div)

SGM3110

5

TYPICAL PERFORMANCE CHARACTERISTICS

At VS = +5.0V, TA = +25℃, VIN = 3V, CIN = COUT = 10µF, CFLY = 1µF, unless otherwise noted.

Supply Current vs. V

SHDN

0

10

20

30

40

50

60

70

012345

V

SHDN

Control Voltage(V)

Supply Current (µA)

IOUT = 0µA

VIN = 2.8V VIN = 3.3V VIN = 5.5V

Supply Current vs. Supply Voltage

50

54

58

62

66

70

2.533.544.555.5

Supply Voltage(V)

Supply Current (µA)

IOUT = 0µA

CFLY = 1µF

VSHDN = VIN

Output Voltage vs. Output Current

4.8

4.85

4.9

4.95

5

5.05

5.1

5.15

5.2

0 20406080100120

Output Current (mA)

Output Voltage (V)

VIN = 3.0V

VIN = 3.3V

VIN = 3.6V

VIN = 2.7V

V

SHDN

Threshold vs. Input Voltage

0.5

0.6

0.7

0.8

0.9

1

22.533.544.555.5

Input Voltage (V)

V

SHDN

Threshold (V)

V

IL

V

IH

V

SHDN

Input Threshold (high) vs. Input Voltage

0.5

0.6

0.7

0.8

0.9

1

22.533.544.555.5

Input Voltage (V)

V

SHDN

Input Threshold (high)(V)

-40℃

25℃

85℃

V

SHDN

Input Threshold (low) vs. Input Voltage

0.5

0.6

0.7

0.8

0.9

1

2 2.5 3 3.5 4 4.5 5 5.5

Input Voltage (V)

V

SHDN

Input

Threshold (low)(V)

-40℃

25℃

85℃

SGM3110

6

TYPICAL PERFORMANCE CHARACTERISTICS

At VS = +5.0V, TA = +25℃, VIN = 3V, CIN = COUT = 10µF, CFLY = 1µF, unless otherwise noted.

Normalized Output Voltage vs. Temperature

-0.2

-0.1

0

0.1

0.2

-50 -25 0 25 50 75 100 125

Supply Voltage(V)

Normalized Output Voltage

(%)

I

OUT

=

Efficiency vs. Supply Voltage

45

55

65

75

85

95

2.7 3.2 3.7 4.2 4.7 5.2

Supply Voltage(V)

Efficiency (%)

25mA

50mA

100mA

Oscillator Frequency vs. Supply Voltage

560

660

760

860

960

1060

1160

2.7 3.2 3.7 4.2 4.7

Supply Voltage(V)

Oscillator Frequency (KHz)

-40℃

25

℃

85

℃

SGM3110

7

PACKAGE OUTLINE DIMENSIONS

SOT23-6

D

e1

e

b

A2

A

A1

E

L

C

E1

0

θ

0.20

Dimensions

In Millimeters

Dimensions

In Inches

Symbol

Min Max Min Max

A 1.050 1.250 0.041 0.049

A1 0.000 0.100 0.000 0.004

A2 1.050 1.150 0.041 0.045

b 0.300 0.400 0.012 0.016

c 0.100 0.200 0.004 0.008

D 2.820 3.020 0.111 0.119

E 1.500 1.700 0.059 0.067

E1 2.650 2.950 0.104 0.116

e 0.950TYP 0.037TYP

e1 1.800 2.000 0.071 0.079

L 0.700REF 0.028REF

L1 0.300 0.600 0.012 0.024

θ 0° 8° 0° 8°