SS8014-18GTR SSC [Silicon Standard Corp.], SS8014-18GTR Datasheet

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SS8014-18GTR

Manufacturer Part Number
SS8014-18GTR
Description
300mA Low-Noise LDO Regulators
Manufacturer
SSC [Silicon Standard Corp.]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SS8014-18GTR
Manufacturer:
SILICONLABS/芯科
Quantity:
20 000
1/12/2005 Rev.2.10
FEATURES
APPLICATIONS
Pin Configuration
Notebook Computers
Cellular Phones
PDA
Hand-Held Devices
Battery-Powered Application
Guaranteed 300mA output current
Over-temperature and short-circuit protection
Ultra low output noise of 30µV (rms)
Ultra low no-load supply current of 55µA
Ultra low dropout of 70mV at 50mA load
Max. supply current in shutdown mode < 1µA
Stable with low cost ceramic capacitors
Fixed: 3.30V (SS8014-33), 3.0V (SS8014-30)
SHDN
SHDN
This device is only available with Pb-free lead finish (second-level interconnect).
GND
GND
IN
IN
1.80V(SS8014-18), 1.50V(SS8014-15)
2.85V (SS8014-29), 2.80V (SS8014-28)
2.70V (SS8014-27), 2.50V (SS8014-25)
1
1
2
2
3
3
SS8014-xx
SOT23-5
5
5
4
4
OUT
OUT
BYP
BYP
www.SiliconStandard.com
300mA Low-Noise LDO Regulators
BATTERY
BATTERY
ORDERING INFORMATION
DESCRIPTION
SS8014-18GTR
SS8014-30GTR
SS8014-15GTR
SS8014-25GTR
SS8014-27GTR
SS8014-28GTR
SS8014-29GTR
SS8014-33GTR
Part Number
The SS8014-xxG is a low supply-current, low-dropout linear
regulator that comes in a space-saving SOT23-5 package.
The supply current at no-load is 55µA. In the shutdown
mode, the maximum supply current is less than 1µA.
Operating voltage range of the SS8014 is from 2.5V to
5.5V. The over-current protection limit is set at 500mA
typical and 400mA minimum. An over-temperature pro-
tection circuit is built-in to the SS8014 to prevent thermal
overload. These power saving features make the SS8014
ideal for use in such battery-powered applications as
notebook computers, cellular phones, and PDA’s.
Typical Operating Circuit
+
_
_
1µF
1µF
C
C
IN
IN
IN
IN
SHDN
SHDN
GND
GND
SS8014-xx
Marking
4Hxx
4Cxx
4Gxx
4Exx
4Axx
4Bxx
4Fxx
4Dxx
OUT
OUT
BYP
BYP
SS8014-xxG
Voltage
2.50V
2.70V
2.80V
2.85V
3.0V
3.30V
1.80V
1.50V
C
C
10nF
10nF
BYP
BYP
1
1
C
C
µ
µ
OUT
OUT
F
F
OUTPUT
OUTPUT
VOLTAGE
VOLTAGE
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SS8014-18GTR Summary of contents

Page 1

... SS8014 to prevent thermal overload. These power saving features make the SS8014 ideal for use in such battery-powered applications as notebook computers, cellular phones, and PDA’s. ORDERING INFORMATION Part Number SS8014-15GTR SS8014-18GTR SS8014-25GTR SS8014-27GTR SS8014-28GTR SS8014-29GTR SS8014-30GTR SS8014-33GTR Typical Operating Circuit ...

Page 2

... J SYMBOL CONDITIONS V IN Variation from specified =1mA,V OUT For SS8014-18, I =1mA OUT OUT For SS8014-15, I =1mA OUT I LIM I = 0mA LOAD I V =3. 50mA Q IN LOAD I ...

Page 3

... Note 4: The dropout voltage is defined as (V For the performance of e ach SS8014-xx version, see “Typical Performance Characteristics”. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 1mA to 300mA. Changes in output due to heating effects are covered by the thermal regulation specification ...

Page 4

... SHDN Input Bias Current vs. Temperature 0.20 SS8014- SHDN 0.10 0.00 -0.10 -0. -40 -30 -20 - (°C) Output Voltage vs. Temperature 3.36 SS8014-33 3.34 I LOAD 3.32 3.30 3.28 3.26 3. -40 -30 -20 - (°C) J =0mA ...

Page 5

... Output Noise vs. Load Current =1µ 0.1 1 www.SiliconStandard.com SS8014-xxG Load Transient SS8014-29 V =5V +2V(p-p) IN =100 =10nF BYP 0 0 100 Frequency(KHZ) SS8014-18 V =2.8V IN =25 ° =1µF OUT 10 100 1000 Load Current (mA ...

Page 6

... Bypass Capactor (nF) 1/12/2005 Rev.2.10 (continued) Power Off Response Waveform Shutdown Delay Waveform Turn-Off Time vs. Bypass Capacitance 1000 100 100 0.1 www.SiliconStandard.com SS8014-xxG Propagation Delay Time Fall Time SS8014-33 I =150mA LOAD C =C =1µF IN OUT V =4.3V power already IN V =4. SHDN 1 10 100 ...

Page 7

... OUT Regulator Output. Sources up to 150mA. Bypass with a 1µF, < 0.2 Detailed Description The block diagram of the SS8014-xx is shown in Figure 1. It consists of an error amplifier, 1.25V bandgap reference, PMOS output transistor, internal feedback voltage divider, shutdown logic, over current protection circuit, and over temperature protection circuit. The internal feedback voltage divider’ ...

Page 8

... The typical over current limit of the SS8014 is set to 350mA. Note that the input bypass capacitor of 1µF must be used in this case to filter out the input voltage spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’ ...

Page 9

... Layout Guide An input capacitance of ~1µF is required between the SS8014 input pin and ground (the amount of the ca- pacitance may be increased without limit), This ca- pacitor must be located a distance of not more than 1cm from the input and return to a clean analog ground. The input capacitor filters out the input voltage spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’ ...

Page 10

... Silicon Standard Corporation or any third parties. 1/12/2005 Rev.2. DIMENSIONS IN MILLIMETERS MIN NOM 1.00 1.10 0.00 ----- 0.70 0.80 0.35 0.40 0.10 0.15 2.70 2.90 1.40 1.60 ----- 1.90(TYP) ----- 0.95 2.60 2.80 0.37 ------ 1º 5º www.SiliconStandard.com SS8014-xxG Tape/package orientation Feed Direction SOT23-5 package orientation MAX 1.30 0.10 0.90 0.50 0.25 3.10 1.80 ----- ----- 3.00 ----- 9º ...

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