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Home ›  RR8 > REG103-REG103FA-2.5-REG103FA-2.5KTTT-REG103FA-2.5KTTTG3-REG103FA-3.3-REG103FA-5-REG103FA-A-REG103FA-AKTTTG3-REG103GA2.5-REG103GA-2.5-REG103GA-3-REG103GA-3.3-REG103GA-3.3/2K5G4-REG103GA5-REG103GA-5-REG103GA-5/2K5G4-REG103GA-A-REG103GA-A/2K5G4-REG103UA-2.5-REG103UA-3-R,DMOS 500mA Low Dropout Regulator
REG103-REG103FA-2.5-REG103FA-2.5KTTT-REG103FA-2.5KTTTG3-REG103FA-3.3 Fast Delivery,Good Price
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REG103TI/BBN/a5avaiDMOS 500mA Low Dropout Regulator
REG103FA-2.5 |REG103FA25BBN/a5000avaiDMOS 500mA Low Dropout Regulator
REG103FA-2.5KTTT |REG103FA25KTTTTIN/a25avai25
REG103FA-2.5KTTTG3 |REG103FA25KTTTG3BBN/a95avai500mA, Low-Noise, Low Dropout Regulator 5-DDPAK/TO-263 -40 to 85
REG103FA-3.3 |REG103FA33TIN/a38avaiDMOS 500mA Low Dropout Regulator
REG103FA-5 |REG103FA5BBN/a294avaiDMOS 500mA Low Dropout Regulator
REG103FA-A |REG103FAATIN/a160avaiDMOS 500mA Low Dropout Regulator
REG103FA-AKTTTG3 |REG103FAAKTTTG3BBN/a186avai500mA, Low-Noise, Low Dropout Regulator 5-DDPAK/TO-263 -40 to 85
REG103GA2.5 |REG103GA25TIN/a314avaiDMOS 500mA Low Dropout Regulator
REG103GA-2.5 |REG103GA25TIN/a6327avaiDMOS 500mA Low Dropout Regulator
REG103GA-3 |REG103GA3TIN/a200avaiDMOS 500mA Low Dropout Regulator
REG103GA-3.3 |REG103GA33TI ?N/a132avaiDMOS 500mA Low Dropout Regulator
REG103GA-3.3/2K5G4 |REG103GA332K5G4TIN/a5300avai500mA, Low-Noise, Low Dropout Regulator 6-SOT-223 -40 to 85
REG103GA5BBN/a11avaiDMOS 500mA Low Dropout Regulator
REG103GA-5 |REG103GA5BBN/a1404avaiDMOS 500mA Low Dropout Regulator
REG103GA-5 |REG103GA5TIN/a18avaiDMOS 500mA Low Dropout Regulator
REG103GA-5/2K5G4 |REG103GA52K5G4TIN/a1369avai500mA, Low-Noise, Low Dropout Regulator 6-SOT-223 -40 to 85
REG103GA-A |REG103GAATEXASINSTRUMN/a2450avaiDMOS 500mA Low Dropout Regulator
REG103GA-A/2K5G4 |REG103GAA2K5G4TIN/a6000avai500mA, Low-Noise, Low Dropout Regulator 6-SOT-223 -40 to 85
REG103UA-2.5 |REG103UA25BBN/a123avaiDMOS 500mA Low Dropout Regulator
REG103UA-3 |REG103UA3TIN/a25avaiDMOS 500mA Low Dropout Regulator
REG103UA-3.3 |REG103UA33BBN/a5avaiDMOS 500mA Low Dropout Regulator
REG103UA-5 |REG103UA5TI/BBN/a10avaiDMOS 500mA Low Dropout Regulator
REG103UA-5G4 |REG103UA5G4BBN/a200avai500mA, Low-Noise, Low Dropout Regulator 8-SOIC -40 to 85
REG103UA-A |REG103UAATIN/a3100avaiDMOS 500mA Low Dropout Regulator
REG103UA-AG4 |REG103UAAG4TIBBN/a660avai500mA, Low-Noise, Low Dropout Regulator 8-SOIC -40 to 85


REG103GA-2.5 ,DMOS 500mA Low Dropout Regulator.PIN CONFIGURATIONSTop ViewSO-8 SOT223-5DDPAK-5Tab is GNDV 1 8 VOUT INTab is GNDV 2 7 VOUT IN(1)123 ..
REG103GA-3 ,DMOS 500mA Low Dropout RegulatorREG103REG103REG103REG103SBVS010D – JANUARY 2000 – REVISED SEPTEMBER 2005DMOS500mA Low-Dropout Regul ..
REG103GA-3.3 ,DMOS 500mA Low Dropout RegulatorREG103REG103REG103REG103SBVS010D – JANUARY 2000 – REVISED SEPTEMBER 2005DMOS500mA Low-Dropout Regul ..
REG103GA-3.3/2K5G4 ,500mA, Low-Noise, Low Dropout Regulator 6-SOT-223 -40 to 85.PIN CONFIGURATIONSTop ViewSO-8 SOT223-5DDPAK-5Tab is GNDV 1 8 VOUT INTab is GNDV 2 7 VOUT IN(1)123 ..
REG103GA5 ,DMOS 500mA Low Dropout RegulatorREG103REG103REG103REG103SBVS010D – JANUARY 2000 – REVISED SEPTEMBER 2005DMOS500mA Low-Dropout Regul ..
REG103GA-5 ,DMOS 500mA Low Dropout Regulator(1)ABSOLUTE
RN2308 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsRN2307~RN2309 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) RN2307,RN2308,RN2309 Un ..
RN2310 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsApplications With built-in bias resistors Simplify circuit design Reduce a quantity of part ..
RN2311 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsRN2310,RN2311 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) RN2310,RN2311 Unit: mmS ..
RN2312 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsRN2312,RN2313 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) RN2312,RN2313 Switching ..
RN2313 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsApplications With built-in bias resistors Simplify circuit design Reduce a quantity of par ..
RN2314 ,Transistor Silicon PNP Epitaxial Type (PCT Process) Switching, Inverter Circuit, Interface Circuit And Driver Circuit ApplicationsRN2314~RN2318 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) RN2314,RN2315,RN2316,RN2 ..


REG103-REG103FA-2.5-REG103FA-2.5KTTT-REG103FA-2.5KTTTG3-REG103FA-3.3-REG103FA-5-REG103FA-A-REG103FA-AKTTTG3-REG103GA2.5-REG103GA-2.5-REG103GA-3-REG103GA-3.3-REG103GA-3.3/2K5G4-REG103GA5-REG103GA-5-REG103GA-5/2K5G4-REG103GA-A-REG103GA-A/2K5G4-REG103UA-2.5-REG103UA-3-R
DMOS 500mA Low Dropout Regulator
DMOS
500mA Low-Dropout Regulator
FEA TURES
NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
115mV Typ at 500mA and 3.3V Output
Output Capacitor NOT Required for Stability
FAST TRANSIENT RESPONSE VERY LOW NOISE: 33μVrms HIGH ACCURACY: ±2% max HIGH EFFICIENCY:
IGND = 1mA at IOUT = 500mA
Not Enabled: IGND = 0.5μA
2.5V, 2.7V, 3.0V, 3.3V, 5.0V, AND ADJUSTABLE
OUTPUT VERSIONS
FOLDBACK CURRENT LIMIT THERMAL PROTECTION OUTPUT VOLTAGE ERROR INDICATOR(1) SMALL SURFACE-MOUNT PACKAGES:
SOT223-5, DDPAK-5, SO-8
APPLICATIONS
PORTABLE COMMUNICATION DEVICES BATTERY-POWERED EQUIPMENT PERSONAL DIGITAL ASSISTANTS MODEMS BAR-CODE SCANNERS BACKUP POWER SUPPLIES
DESCRIPTION

The REG103 is a family of low-noise, low-dropout, linear
regulators with low ground pin current. Its new DMOS
topology provides significant improvement over previous
designs, including low-dropout voltage (only 115mV typ at
full load), and better transient performance. In addition, no
output capacitor is required for stability, unlike conventional
low-dropout regulators that are difficult to compensate and
require expensive low ESR capacitors greater than 1μF.
Typical ground pin current is only 1mA (at IOUT = 500mA)
and drops to 0.5μA in not enabled mode. Unlike regulators
with PNP pass devices, quiescent current remains relatively
constant over load variations and under dropout conditions.
The REG103 has very low output noise (typically 33μVrms
for VOUT = 3.3V with CNR = 0.01μF), making it ideal for use
in portable communications equipment. On-chip trimming
results in high output voltage accuracy. Accuracy is main-
tained over temperature, line, and load variations. Key
parameters are tested over the specified temperature range
(–40°C to +85°C).
The SO-8 version of the REG103 has an ERROR pin that
provides a power good flag, indicating the regulator is in
regulation. The REG103 is well protected—internal cir-
cuitry provides a current limit that protects the load from
damage. Thermal protection circuitry keeps the chip from
being damaged by excessive temperature. In addition to the
SO-8 package, the REG103 is also available in the DDPAK
and the SOT223-5.
ENABLE
0.1μF(2)+
VOUTVIN
NR = Noise Reduction
ERROR(1) ERROR1)
ENABLE
0.1μF(2)
VOUTVIN
REG103

SBVS010D – JANUARY 2000 – REVISED SEPTEMBER 2005
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
NOTE: (1) SO-8 Package Only. (2) Optional.
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