REG104 Series

1-A, 15-V, low-dropout voltage regulator with enable

Catalog

1-A, 15-V, low-dropout voltage regulator with enable

Part	Current - Output	Output Configuration	Current - Quiescent (Iq)	Mounting Type	Voltage Dropout (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Supply (Max) [Max]	Supplier Device Package	Protection Features	Control Features	Package / Case	Voltage - Input (Max) [Max]	Number of Regulators	PSRR	Output Type	Voltage - Output (Min/Fixed)	Output Type	Voltage - Output (Max) [Max]
Texas Instruments REG104GA-3	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	SOT-223-6	Over Current Over Temperature	Enable	SOT-223-6	15 V	1	65 dB	1.81 mOhm
Texas Instruments REG104GA-5G4	1 A	Positive	700 µA	Surface Mount	0.58 V	85 °C	-40 °C	1.8 mA	SOT-223-6	Over Current Over Temperature	Enable	SOT-223-6	15 V	1	65 dB	1.81 mOhm	5 V
Texas Instruments REG104FA-A/500G3	1 A	Positive	700 µA	Surface Mount	0.58 V	85 °C	-40 °C	1.8 mA	TO-263 (DDPAK-5)	Over Current Over Temperature	Enable	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	15 V	1	65 dB		1.295 V	Adjustable	5.5 V
Texas Instruments REG104GA-2.5G4	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	SOT-223-6	Over Current Over Temperature	Enable	SOT-223-6	15 V	1	65 dB	1.81 mOhm	2.5 V
Texas Instruments REG104FA-5KTTTG3	1 A	Positive	700 µA	Surface Mount	0.58 V	85 °C	-40 °C	1.8 mA	TO-263 (DDPAK-5)	Over Current Over Temperature	Enable	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	15 V	1	65 dB	1.81 mOhm	5 V
Texas Instruments REG104GA-5/2K5G4	1 A	Positive	700 µA	Surface Mount	0.58 V	85 °C	-40 °C	1.8 mA	SOT-223-6	Over Current Over Temperature	Enable	SOT-223-6	15 V	1	65 dB	1.81 mOhm	5 V
Texas Instruments REG104GA-2.5/2K5	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	SOT-223-6	Over Current Over Temperature	Enable	SOT-223-6	15 V	1	65 dB	1.81 mOhm	2.5 V
Texas Instruments REG104FA-AKTTT	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	TO-263 (DDPAK-5)	Over Current Over Temperature	Enable	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	15 V	1	65 dB		1.295 V	Adjustable	5.5 V
Texas Instruments REG104FA-3	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	TO-263 (DDPAK-5)	Over Current Over Temperature	Enable	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	15 V	1	65 dB	1.81 mOhm
Texas Instruments REG104FA-3KTTT	1 A	Positive	700 µA	Surface Mount	0.48 V	85 °C	-40 °C	1.8 mA	TO-263 (DDPAK-5)	Over Current Over Temperature	Enable	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	15 V	1	65 dB	1.81 mOhm

Catalog

1-A, 15-V, low-dropout voltage regulator with enable

Key Features

• NEW DMOS TOPOLOGY:Ultra Low Dropout Voltage:230mV typ at 1A and 3.3V OutputOutput Capacitor NOT Required for StabilityFAST TRANSIENT RESPONSEVERY LOW NOISE: 33µVRMSHIGH ACCURACY: ±2% maxHIGH EFFICIENCY:IGND= 1.7mA at IOUT= 1ANot Enabled: IGND= 0.5µA2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONSTHERMAL PROTECTIONSMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5APPLICATIONSPORTABLE COMMUNICATION DEVICESBATTERY-POWERED EQUIPMENTMODEMSBAR-CODE SCANNERSBACKUP POWER SUPPLIESAll trademarks are the property of their respective owners.NEW DMOS TOPOLOGY:Ultra Low Dropout Voltage:230mV typ at 1A and 3.3V OutputOutput Capacitor NOT Required for StabilityFAST TRANSIENT RESPONSEVERY LOW NOISE: 33µVRMSHIGH ACCURACY: ±2% maxHIGH EFFICIENCY:IGND= 1.7mA at IOUT= 1ANot Enabled: IGND= 0.5µA2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONSTHERMAL PROTECTIONSMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5APPLICATIONSPORTABLE COMMUNICATION DEVICESBATTERY-POWERED EQUIPMENTMODEMSBAR-CODE SCANNERSBACKUP POWER SUPPLIESAll trademarks are the property of their respective owners.

Description

The REG104 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 230mV 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 1.7mA (at IOUT= 1A) and drops to 0.5µA innot enabledmode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions. The REG104 has very low output noise (typically 33µVRMSfor 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 maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C). The REG104 is well protected—internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG104 is available in the DDPAK-5 and the SOT223-5. The REG104 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 230mV 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 1.7mA (at IOUT= 1A) and drops to 0.5µA innot enabledmode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions. The REG104 has very low output noise (typically 33µVRMSfor 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 maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C). The REG104 is well protected—internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG104 is available in the DDPAK-5 and the SOT223-5.