SGM2008-2.8 SGMICRO [Shengbang Microelectronics Co, Ltd], SGM2008-2.8 Datasheet

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SGM2008-2.8

Manufacturer Part Number
SGM2008-2.8
Description
Low Power, Low Dropout, 300mA, RF - Linear Regulators
Manufacturer
SGMICRO [Shengbang Microelectronics Co, Ltd]
Datasheet
GENERAL DESCRIPTION
The SGM2008/A series low-power, low-noise, low-dropout,
CMOS linear voltage regulators operate from a 2.5V to 5.5V
input and deliver up to 300mA. They are the perfect choice
for low voltage, low power applications. An ultra low
ground current(200
attractive for battery operated power systems. The
SGM2008/A series also offer ultra low dropout voltage
(300mV at 300mA output) to prolong battery life in
portable electronics. Systems requiring a quiet voltage
source, such as RF applications, will benefit from the
SGM2008/A series’ ultra low output noise (30µVRMS) and
high PSRR. An external noise bypass capacitor connected
to the device’s BP pin can further reduce the noise level.
The output voltage is preset to voltages in the range of 1.5V
to
logic-controlled shutdown mode,
and thermal shut- down protection.
Devices come in 5-pin SOT23 package.
APPLICATIONS
Cellular Telephones
Cordless Telephones
PHS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
SGM2008
3.6V.
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
Other
µA
features
at 300mA output ) makes these part
include
foldback current limit
a
10nA
high
Low Power, Low Dropout,
300mA, RF - Linear Regulators
FEATURES
-
-
-
-
-
-
-
-
-
PIN CONFIGURATIONS
Low Output Noise: 30µV
Ultra-Low Dropout Voltage:
Low 77µA No-Load Supply Current
Low 200µA Operating Supply Current
High PSRR (73dB at 1KHz)
Thermal-Overload Protection
Output Current Limit
10nA high Logic-Controlled Shutdown
Available in Multiple Output Voltage Versions
300mV at 300mA output
at 300mA Output
Fixed Outputs of 1.8V, 2.5V, 2.7V, 2.8V, 2.85V,
2.9V, 3.0V, 3.3V and 3.6V
GND
EN
IN
2
3
1
SGM2008
SOT23-5
RMS
typ(10Hz to 100KHz)
(TOP VIEW)
4
5
OUT
BP
REV. A

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SGM2008-2.8 Summary of contents

Page 1

... Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2008/A series’ ultra low output noise (30µVRMS) and high PSRR. An external noise bypass capacitor connected to the device’s BP pin can further reduce the noise level. ...

Page 2

... SGM2008-1.8XN5/TR - 40°C to +125°C SGM2008-2.5XN5/TR - 40°C to +125°C SGM2008-2. 7XN5/TR - 40°C to +125°C SGM2008-2.8XN5/TR - 40°C to +125°C SGM2008-2.85XN5/TR - 40°C to +125°C SGM2008-2.9XN5/TR - 40°C to +125°C SGM2008-3.0XN5/TR - 40°C to +125°C SGM2008-3.3XN5/TR - 40°C to +125°C SGM2008-3.6XN5/TR - 40° ...

Page 3

... T = +25°C 0. +125°C 0. +25°C 0. +125°C 0. +25° 160 15 for 0.5V. (Only applicable OUT IN OUT SGM2008 MAX UNITS 5 145 µA mV 380 0.15 %/V 0.002 %/mA µV RMS 0.4 1 µA 1 µA µs ℃ ℃ ...

Page 4

... Shutdown Input. A high reduces the supply current to 10nA. Connect to GND for normal operation Reference-Noise Bypass. Bypass with a low-leakage 0.01µF ceramic capacitor for reduced noise at the output. Regulator Output. 5 OUT INPUT 2.5V TO 5.5V OUT 1μF SGM2008 GND FUNCTION 4 OUTPUT C OUT 1μ 0.01μF SGM2008 ...

Page 5

... Load Current(mA) Ground Pin Current vs.Input Voltage 200 V = 2.8V OUT 160 I = 50mA load 120 80 No Load Input Voltage(V) Output Voltage vs.Input Voltage 6 No Load 5 V OUT OUT Input Voltage(V) SGM2008 V = 3.3V OUT 300 3. ...

Page 6

... Load Current(mA) Current limit vs.Temperature 1000 900 800 V = 3.3V 700 OUT 600 500 400 V = 2.8V OUT 300 200 100 -40 - Temperature(℃) SGM2008 I = 150mA LOAD V = 3.3V OUT 100 120 140 V = 2.8V OUT 100 120 140 ...

Page 7

... TYPICAL OPERATING CHARACTERISTICS 0.5V or 2.5V (whichever is greater OUT(NOMINAL) = 1µ 1µ 0.01µ OUT BP 7 = +25℃, unless otherwise noted. A SGM2008 ...

Page 8

... OUT C = 10μF OUT C = 1μF OUT 0.01 10 100 1000 V = 3.3V OUT 100 1000 8 = 0.01µ +25℃, unless otherwise noted Output Noise Spectral Density vs.Frequency 10μF OUT 0.01 0 Frequency(kHz 0.01μ 50mA LOAD C = 1μF OUT 100 1000 SGM2008 ...

Page 9

... Application Notes When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SGM2008. In such applications, voltage spike will be generated at changer interface and V interface when changer adapters and USB equipments are hot-inserted. Besides this, handheld products will be tested on the production line on the condition of no battery. Test Engineer will apply power from the connector pin which connects with positive pole of the battery ...

Page 10

... Min Max 1.250 0.041 0.049 0.100 0.000 0.004 1.150 0.041 0.045 0.400 0.012 0.016 0.200 0.004 0.008 3.020 0.111 0.119 1.700 0.059 0.067 2.950 0.104 0.116 0.950TYP 0.037TYP 2.000 0.071 0.079 0.700REF 0.028REF 0.600 0.012 0.024 0° 8° 0° 8° SGM2008 ...

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