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Part: REG104GA-3/2K5
Category:
Power Management
-> Regulators
-> Linear Regulators
-> LDO (Low Drop Out)
Description: ti REG104-3, Dmos 1A Low Dropout (LDO) Regulator
Company: Texas Instruments, Inc.
Datasheet: Download REG104GA-3/2K5 datasheet File size : 510 kB
Request For quote: Find where to buy REG104GA-3/2K5
Datasheet text preview:
REG104
REG 104
REG 104
SBVS025C SEPTEMBER 2001
DMOS 1A Low-Dropout Regulator
FEATURES
q NEW DMOS TOPOLOGY: Ultra Low Dropout Voltage: 230mV typ at 1A and 3.3V Output Output Capacitor NOT Required for Stability q FAST TRANSIENT RESPONSE q VERY LOW NOISE: 33µVrms q HIGH ACCURACY: ±2% max q HIGH EFFICIENCY: IGND = 1.7mA at IOUT = 1A Not Enabled: IGND = 0.5µA q 2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS q THERMAL PROTECTION q SMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5
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 in "not enabled" mode. 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 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 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.
APPLICATIONS
q q q q q PORTABLE COMMUNICATION DEVICES BATTERY-POWERED EQUIPMENT MODEMS BAR-CODE SCANNERS BACKUP POWER SUPPLIES
Enable V IN + 0.1µF REG104 (Fixed Voltage Versions) Gnd + VO U T CO U T( 1 ) V IN + 0.1µF
Enable VO U T REG104-A R1 Adj Gnd R2 + CO U T( 1 )
NR NR = Noise Reduction
NOTE: (1) Optional.
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.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2000, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
Supply Input Voltage, VIN ....... 0.3V to 16V Enable Input .......... 0.3V to VIN Output Short-Circuit Duration ...... Indefinite Operating Temperature Range ...... 55°C to +125°C Storage Temperature Range ......... 65°C to +150°C Junction Temperature ..... 55°C to +150°C Lead Temperature (soldering, 3s, SOT, and DDPAK) ...... +240°C NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instruments 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.
PACKAGE /ORDERING INFORMATION
PACKAGE DESIGNATOR KTT SPECIFIED TEMPERATURE RANGE 40°C to +85°C PACKAGE MARKING REG104FA-5.0 ORDERING NUMBER REG104FA-5 REG104FA-5 REG104GA-5 REG104GA-5 REG104FA-3.3 REG104FA-3.3 REG104GA-3.3 REG104GA-3.3 REG104FA-3 REG104FA-3 REG104GA-3 REG104GA-3 REG104FA-2.7 REG104FA-2.7 REG104GA-2.7 REG104GA-2.7 REG104FA-2.5 REG104FA-2.5 REG104GA-2.5 REG104GA-2.5 REG104FA-A REG104FA-A REG104GA-A REG104GA-A TRANSPORT MEDIA, QUANTITY Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500 Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500 Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500 Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500 Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500 Rails, 49 Tape and Reel, 500 Rails, 78 Tape and Reel, 2500
PRODUCT 5V Output REG104FA-5
PACKAGE-LEAD DDPAK-5
"
REG104GA-5
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R1 0 4 G 5 0
"
3.3V Output REG104FA-3.3
"
DDPAK-5
"
KTT
"
40°C to +85°C
"
REG104FA-3.3
"
REG104GA-3.3
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R104G33
"
3.0V Output REG104FA-3
"
DDPAK-5
"
KTT
"
40°C to +85°C
"
REG104FA-3.0
"
REG104GA-3
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R1 0 4 G 3 0
"
2.7V Output REG104FA-2. 7
"
DDPAK-5
"
KTT
"
40°C to +85°C
"
REG104FA-2.7
"
REG104GA-2.7
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R104G27
"
2.5V Output REG104FA-2. 5
"
DDPAK-5
"
KTT
"
40°C to +85°C
"
REG104FA-2.5
"
REG104GA-2.5
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R104G25
"
Adjustable Output REG104FA-A
"
DDPAK-5
"
KTT
"
40°C to +85°C
"
REG104FA-A
"
REG104GA- A
"
SOT223-5
"
DCQ
"
40°C to +85°C
"
R104GA
"
"
"
"
"
PIN CONFIGURATIONS
Top View
DDPAK-5 Tab is Gnd Tab is Gnd SOT223-5
12345 1 VO Gnd VIN Enable 2 3 4 5
NR/Adjust(1)
VIN VOUT
Gnd Enable NR/Adjust(1)
(KTT Package)
(DCQ Package)
NOTE: (1) For REG104A-A: voltage setting resistor pin. All other models: noise reduction capacitor pin.
2
REG104
SBVS025C
ELECTRICAL CHARACTERISTICS: VS = +2.7V to +5.5V
Boldface limits apply over the specified temperature range, TJ = 40°C to +85°C
At TJ = +25°C, VIN = VOUT + 1V (VOUT = 3.0V for REG104-A), VENABLE = 2V, IOUT = 10mA, CNR = 0.01µF, and COUT = 0.1µF(1), unless otherwise noted. REG104GA REG104FA PARAMETER OUTPUT VOLTAGE Output Voltage Range REG104-2.5 REG104-2.7 REG104-3.0 REG104-3.3 REG104-5 REG104-A Reference Voltage Adjust Pin Current Accuracy TJ = 40°C to +85°C vs Temperature vs Line and Load TJ = 40°C to +85°C DC DROPOUT VOLTAGE(2, 3) For all models except 5V For 5V model For all models except 5V TJ = 40°C to +85°C For 5V models TJ = 40°C to +85°C VOLTAGE NOISE f = 10Hz to 100kHz Without CNR (all models) With CNR (all fixed voltage models) OUTPUT CURRENT Current Limit(4) TJ = 40°C to +85°C RIPPLE REJECTION f = 120Hz ENABLE CONTROL VENABLE High (output enabled) VENABLE Low (output disabled) IENABLE High (output enabled) IENABLE Low (output disabled) Output Disable Time Output Enable Softstart Time THERMAL SHUTDOWN Junction Temperature Shutdown Reset from Shutdown GROUND PIN CURRENT Ground Pin Current Enable Pin Low INPUT VOLTAGE Operating Input Voltage Range(6) Specified Input Voltage Range TJ = 40°C to +85°C TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance DDPAK-5 Surface Mount SOT223-5 Surface Mount VIN VIN > 2.7V VIN > 2.9V TJ 2.1 VOUT + 0.7 VOUT + 0.9 40 55 65 Junction-to-Case Junction-to-Case 4 15 15 15 15 +85 +125 +150 V V V °C °C °C °C/W °C/W IGND IOUT = 10mA IOUT = 1A VENABLE 0.5V VENABLE IENABLE VENABLE = 2V to VIN, VIN = 2.1V to 6.5(5) VENABLE = 0V to 0.5V 2 0.2 1 2 50 1.5 VOUT 2.5 2.7 3.0 3.3 5 VREF VREF IADJ dVOUT/dT TJ = 40°C to +85°C IOUT = 10mA to 1A, VIN = (VOUT + 0.7V) to 15V VIN = (VOUT + 0.9V) to 15V IOUT = 10mA IOUT = 1A IOUT = 1A IOUT = 1A IOUT = 1A 1.295 0.2 ±0.5 70 ±0.5 3 230 320 5.5 1 ±2 ±3.0 V V V V V V V µA % % ppm/°C % % mV mV mV mV mV CONDITION MIN TYP MAX UNITS
±3.5
25 400 500 480 580
±2.5
VDROP
Vn CNR = 0, COUT = 0 CNR = 0.01µF, COUT = 10µF I CL 1.2 1.0
35µVrms/V · VOUT 10µVrms/V · VOUT 1.7 2.1 2.2
µVrms µVrms A A dB VIN 0 .5 100 100 V V nA nA µs ms
65
150 130 0.5 1.7 0.5 0 .7 1 .8
°C °C mA mA µA
JC JC
NOTES: (1) The REG104 does not require a minimum output capacitor for stability. However, transient response can be improved with proper capacitor selection. (2) Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at VIN = VOUT + 1V at fixed load. (3) Not applicable for VOUT less than 2.7V. (4) Current limit is the output current that produces a 15% change in output voltage from VIN = VOUT + 1V and IOUT = 10mA. (5) For VIN > 6.5V, see typical characteristic "VENABLE vs IENABLE." (6) The REG104 no longer regulates when VIN < VOUT + VDROP (MAX). In drop-out or when the input voltage is between 2.7V and 2.1V, the impedance from VIN to VOUT is typically less than 1 at TJ = +25°C. See typical characteristic "Output Voltage Change vs VIN".
REG104
SBVS025C
3
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