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Preliminary Data sheet
SGM3110
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 -40C to +85C temperature range.
MicroPower Regulated Charge Pump
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: 60A - 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
APPLICATIONS
Cellular Phones Digital Cameras Handheld Electronics LED/Display Backlight Driver LEDs for Camera Flash Portable Communication Devices MP3 Players GPS Receivers PDAs
PIN CONFIGURATIONSTOP VIEW
SGM3110
3110(A)
SOT23-6
VOUT GND
1 2
6 5
C+ VIN
SHDN
3
4
C-
TYPICAL APPLICATION
VOUT COUT = 10F VOUT GND ON/OFF SHDN C+ VIN C-
1F
VIN
CIN = 10F
Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com
Apr. 2007
ELECTRICAL CHARACTERISTICS
(TA = -40C to +85C, unless otherwise noted. Typical values are at TA = 25C, CFLY = 1F, CIN = 10F, COUT = 10F). PARAMETER SGM3110-5.0 Input Voltage Range Output Voltage Quiescent Power Supply Current Shutdown Supply Current VIN VOUT IQ ISHDN VOUT = 5.0V 2.7V < VIN < 5V, IOUT 50mA 3.0V < VIN < 5V, IOUT 100mA 2.7V < VIN < 5V, IOUT = 0mA, 2.7 4.8 4.8 5.0 5.0 60 0.2 15 88 91 750 1.4 0.4 % kHz V +1 +1 0.3 2.7 4.32 4.32 4.5 4.5 60 0.2 15 88 83 750 1.4 0.4 % kHz V +1 +1 0.3 A A ms VOUT 4.68 4.68 68 1 1 A A ms V V A A mVP-P VOUT 5.2 5.2 68 1 1 V V A A mVP-P SYMBOL CONDITIONS MIN TYP(1) MAX UNITS
SHDN = VIN
2.7V < VIN < 3.6V, IOUT = 0mA, VSHDN = 0 3.6V < VIN < 5V, IOUT = 0mA, VSHDN = 0 VIN = 2.7V, IOUT = 50mA VIN = 3V, IOUT = 100mA VIN = 2.7V, IOUT = 50mA Oscillator Free Running
Ripple Voltage Efficiency Frequency
VRIPPLE fOSC VIH VIL IIH IIL TON VIN VOUT IQ ISHDN
SHDN Input Threshold High SHDN Input Threshold Low SHDN Input High Current SHDN Input Low Current
Turn-On Time SGM3110-4.5 Input Voltage Range Output Voltage Quiescent Power Supply Current Shutdown Supply Current
SHDN = VIN SHDN = GND
VIN = 3V, IOUT = 0mA VOUT = 4.5V 2.7V < VIN < 4.5V, IOUT 50mA 3.0V < VIN < 4.5V, IOUT 100mA 2.7V < VIN < 4.5V, IOUT = 0mA,
-1 -1
SHDN = VIN
2.7V < VIN < 3.6V, IOUT = 0mA, VSHDN = 0 3.6V < VIN < 4.5V, IOUT = 0mA, VSHDN = 0 VIN = 2.7V, IOUT = 50mA VIN = 3V, IOUT = 100mA VIN = 2.7V, IOUT = 50mA Oscillator Free Running
Ripple Voltage Efficiency Frequency
VRIPPLE fOSC VIH VIL IIH IIL TON
SHDN Input Threshold High SHDN Input Threshold Low SHDN Input High Current SHDN Input Low Current
Turn-On Time
SHDN = VIN SHDN = GND
VIN = 3V, IOUT = 0mA
-1 -1
Specifications subject to change without notice.
2
SGM3110
PACKAGE/ORDERING INFORMATION
ORDER NUMBER PACKAGE DESCRIPTION PACKAGE OPTION MARKING INFORMATION
SGM3110-5.0YN6/TR SGM3110-4.5YN6/TR
SOT23-6 SOT23-6
Tape and Reel, 3000 Tape and Reel, 3000
3110 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, JA ..................................................... 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 VOUT
GND
FUNCTION
Regulated output pin.
Ground
SHDN
CVIN C+
Shutdown input. Logic low signal disables the converter. Flying capacitor negative terminal. Input supply pin. Flying capacitor positive terminal.
3
SGM3110
TYPICAL PERFORMANCE CHARACTERISTICS
At VS = +5.0V, TA = +25, VIN = 3V, CIN = COUT = 10F, CFLY = 1F, unless otherwise noted.
Startup Time with 50mA Load Startup Time with 100mA Load
VOUT (1Vdiv/)
VOUT (1Vdiv/)
SHDN (1V/div)
SHDN(1V/div)
Time (100s/div)
Time (100s/div)
Output Ripple with IOUT = 50mA
Output Ripple with IOUT = 100mA
VOUT AC Coupled(10mV/div)
VIN = 2.7V
VOUT AC Coupled(50mV/div)
VIN = 3.0V
Time (0.5s/div)
Time (2s/div)
Load Transient Response for 50mA
IOUT 0mA to 50mA (20mA/div)
VIN = 2.7V
Load Transient Response for 100mA
VIN = 3.0V
IOUT 0mA to 100mA (50mA/div)
VOUT AC Coupled (50mV/div) Time (50s/div)
VOUT AC Coupled (80mV/div) Time (50s/div)
4
SGM3110
TYPICAL PERFORMANCE CHARACTERISTICS
At VS = +5.0V, TA = +25, VIN = 3V, CIN = COUT = 10F, CFLY = 1F, unless otherwise noted.
70 60
Supply Current vs. VSHDN
70 66
Supply Current vs. Supply Voltage
IOUT = 0A CFLY = 1F VSHDN = VIN
Supply Current (A)
50 40 30 20 10 0 0 1
VIN = 2.8V
VIN = 3.3V
VIN = 5.5V
Supply Current (A)
62 58 54 50
IOUT = 0A
2 3 4 5
VSHDN Control Voltage(V)
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage(V)
5.2 5.15
Output Voltage vs. Output Current
VIN = 3.6V
1 0.9
VSHDN Threshold vs. Input Voltage
VSHDN Threshold (V)
Output Voltage (V)
5.1 5.05 5 4.95 4.9 4.85 4.8 0 20
VIH
0.8 0.7 0.6 0.5
VIN = 3.3V VIN = 2.7V VIN = 3.0V
VIL
Output Current (mA)
40
60
80
100
120
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
VSHDN Input Threshold (high) vs. Input Voltage
1
VSHDN Input Threshold (low) vs. Input Voltage
1
VSHDN Input Threshold (high)(V)
VSHDN Input Threshold (low)(V)
-40
0.9
0.9 0.8 0.7 0.6 0.5
-40 25 85
25
0.8
85
0.7 0.6 0.5 2 2.5 3 3.5 4 4.5 5 5.5
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
5
SGM3110
TYPICAL PERFORMANCE CHARACTERISTICS
At VS = +5.0V, TA = +25, VIN = 3V, CIN = COUT = 10F, CFLY = 1F, unless otherwise noted.
Normalized Output Voltage vs. Temperature
0.2 IOUT = 95
Efficiency vs. Supply Voltage
25mA
Normalized Output Voltage (%)
0.1
85
Efficiency (%)
75 65 55 45
50mA
0
100mA
-0.1
-0.2 -50 -25 0 25 50 75 100 125
Supply Voltage(V)
2.7
3.2
3.7
4.2
4.7
5.2
Supply Voltage(V)
Oscillator Frequency vs. Supply Voltage
1160
Oscillator Frequency (KHz)
1060
-40
960 860 760
25
85
660 560 2.7 3.2 3.7 4.2 4.7
Supply Voltage(V)
6
SGM3110
PACKAGE OUTLINE DIMENSIONS
SOT23-6
D e1 e L
0
0.20
Symbol
A A1 A2 b c D E E1
Dimensions In Millimeters Min
1.050 0.000 1.050 0.300 0.100 2.820 1.500 2.650 1.800 0.300 0
Dimensions In Inches Min
0.041 0.000 0.041 0.012 0.004 0.111 0.059 0.104 0.071 0.012 0
Max
1.250 0.100 1.150 0.400 0.200 3.020 1.700 2.950 2.000 0.600 8
Max
0.049 0.004 0.045 0.016 0.008 0.119 0.067 0.116 0.079 0.024 8
E1
E
b A1
L C
e e1 L
0.950TYP 0.700REF
0.037TYP 0.028REF
A2
A
L1
7
SGM3110

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