GM11171.8TA3R

GM1117 GAMMA | Alldatasheet

Document overview

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Technical content

Features

Adjustable or Fixed Output Output Current of 1.0A Dropout Voltage (Typical) 1.15V @ 1.0A Line Regulation 0.2% max. Load Regulation 0.4% max. Fast Transient Response Current Limit Protection Thermal Shutdown Protection TYPICAL APPLICA TION CIRCUITS Hard Drive Controllers Battery Chargers Adjustable Power Supply (Adjustable Version) VOUT GND VIN GM1117-3.3 (Fixed Version) GM1117 V0.1 www.gammamicro.com 1 + +C1 10µF Tant 10µF Tant. Min V = 3.3VOUTV > 4.75VIN VOUT ADJ VIN + +C1 10µF Tant 10µF Tant. Min V = 3.45VOUTV > 4.75VIN GM1117-Adj 133W 1.0% 232W 1.0% Notes: 1. C1 needed if device is far from filter capacitors 2. C2 minimum value required for stability V V R2= X (1 + ) + I X OUT REF ADJ A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

MARKING INFORMATION & PIN CONFIGURATIONS (Top View) TO-252 (DPAK) On fixed versions Pin 1 = GND, on adjustable versions Pin 1 = A Tab = VOUT DJ Package Shipping TO-252 TO-252 TO-252 TO-220 TO-220 TO-220 80 / TubeUnits 80 / TubeUnits 80 / TubeUnits 50 / TubeUnits 50 / TubeUnits 50 / TubeUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 50 / TubeUnits 50 / TubeUnits 50 / TubeUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223

80 Units / Tube

GM1117-1.5TC3T GM1117-1.8TC3T GM1117-ATB3T GM1117-1.5TB3T GM1117-1.8TB3T GM1117-ATC3R GM1117-1.5TC3R GM1117-1.8TC3R GM1117-ATA3T GM1117-1.5TA3T GM1117-1.8TA3T GM1117-ATA3R GM1117-1.5TA3R GM1117-1.8TA3R Ordering Number GM1117-AST3T GM1117-1.5ST3T GM1117-1.8ST3T GM1117-AST3R GM1117-1.5ST3R GM1117-1.8ST3R Output V oltage TO-252 TO-252 TO-252 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 Adj 1.5 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.5 1.5 1.5 1.5 1.5 1.5 Adj Adj Adj Adj Adj Adj V V/VVV = Output Voltage (50 = 5.0V, 285= 2.85V ,A =Adj ) A = Assembly Location Y = Year W W = Weekly 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits GM1117 VINVOUT ADJ/ GND* GM1117 VVAYWW SOT-223 VIN VOUT ADJ/GND* GM1117 VVAYWW TO-220 GM1117 VVAYWW VINVOUT ADJ/ GND* GM1117 VVAYWW TO-263-2 (D PAK) VINVOUT ADJ/ GND*

ORDERING INFORMATION

• For detail Ordering Number identification, please see last page. A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 50 / TubeUnits 50 / TubeUnits 50 / TubeUnits 50 / TubeUnits 50 / TubeUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits 800 / Tape & ReelUnits SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 SOT-223 GM1117-2.5TC3T GM1117-2.85TC3T GM1117-3.3TC3T GM1117-3.0TC3T GM1117-5.0TC3T GM1117-2.5TB3T GM1117-2.85TB3T GM1117-3.3TB3T GM1117-3.0TB3T GM1117-5.0TB3T GM1117-2.5TC3R GM1117-2.85TC3R GM1117-3.3TC3R GM1117-3.0TC3R GM1117-5.0TC3R GM1117-2.5TA3T GM1117-2.85TA3T GM1117-3.3TA3T GM1117-3.0TA3T GM1117-5.0TA3T GM1117-2.5TA3R GM1117-2.85TA3R GM1117-3.3TA3R GM1117-3.0TA3R GM1117-5.0TA3R Ordering Number GM1117-2.5ST3T GM1117-2.85ST3T GM1117- ST3T3.3 GM1117-3.0ST3T GM1117-5.0ST3T GM1117- ST3R2.5 GM1117- ST3R2.85 GM1117- ST3R3.3 GM1117- ST3R3.0 GM1117- ST3R5.0 Output V oltage TO-252 TO-252 TO-252 TO-252 TO-252 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.85 3.3 3.3 3.3 3.3 3.3 3.3 3.3 5.0 5.0 5.0 5.0 5.0 5.0 5.0 2.85 2.85 2.85 2.85 2.85 2.85 3.0 3.0 3.0 3.0 3.0 3.0 3.0 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits 2,500 / Tape & ReelUnits ORDERING INFORMATION (Continued) * For detail Ordering Number identification, please see last page. A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

Operating Junction Temperature Range Control Section Power Transistor Power Dissipation Input Voltage Lead Temperature(Soldering, 10sec) VIN VOUT GND Thermal Shutdown Bandgap Reference Output Current Limit Error Amplifier ABSOLUTE MAXIMUM RATINGS VIN VOUT ADJ Thermal Shutdown Bandgap Reference Output Current Limit Error Amplifier Storage Temperature Range Thermal Characteristics SOT-223 Thermal Resistance, Junction-to-Case DPAK Thermal Resistance, Junction-to-Case DP AK Thermal Resistance, Junction-to-Case GM1117 (Adjustable Version) (Fixed Version) SYMBOL VALUE UNIT Internally limited W TLEAD VIN 7.0 300 0 to 125 0 to 150 V PD TSTG -65 to + 150 TJ RqJC 6.0 3.0 °C/ W A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

ELECTRICAL CHARACTERISTICS

(Typicals and limits appearing in normal type apply for T = 25°C) J Parameter Symbol Min Typ Max UnitCondition Reference Voltage Output Voltage GM1117-Adj GM1117-1.8 GM1117-2.5 GM1117-3.3 GM1117-5.0 VREF VO I =10mA, V = 5VOUT IN 10mA I 1.0A, 2.65V V 7VOUT IN I =10mA, V =3.3VOUT IN 0 I 1.0A, 3.3V V 7VOUT IN I =10mA, V =4VOUT IN 0 I 1.0A, 4V V 7VOUT IN I =10mA, V =4.8VOUT IN 0 I 1.0A, 4.8V V 7VOUT IN I =10mA, V =6.5VOUT IN 0 I 1.0A, 6.5V V 7VOUT IN 1.238 1.225 1.782 1.764 2.475 2.450 3.267 3.234 4.950 4.900 1.250 1.250 1.800 1.800 2.500 2.500 3.300 3.300 5.000 5.000 1.262 1.275 1.818 1.836 2.525 2.550 3.333 3.366 5.050 5.100 V V V V V Line Regulation Load Regulation GM1117-Adj GM1117-Adj GM1117-1.8 GM1117-1.8 GM1117-2.5 GM1117-2.5 GM1117-3.3 GM1117-3.3 GM1117-5.0 GM1117-5.0 REGLINE REGLOAD 0.04 0.04 0.04 0.04 0.20 0.20 0.20 0.20 0.20 1.15 3.1 0.20 0.20 0.20 0.20 0.40 0.40 0.40 0.40 0.40 1.3 I =10mA, 3.3V V 7VOUT IN I =10mA, 4V V 7VOUT IN I =10mA, 4.8V V 7VOUT IN I =10mA, 6.5V V 7VOUT IN V -V =1.5V, 10mA I 1.0AIN OUT O V =3.3V, 10mA I 1.0AIN O V =4.0V, 10mA I 1.0AIN O V =4.8V, 10mA I 1.0AIN O V =6.5V, 10mA I 1.0AIN O Dropout Voltage Current Limit Minimum Load Current GM1117-Adj VD ICL IO MIN I =1.0AOUT V -V =3VIN OUT V =5VIN 1.1 V A mA mA Quiescent Current GM1117-1.8 GM1117-2.5 GM1117-3.3 GM1117-5.0 IQ V =3.3V, 10mA I 1.0AIN O V =4.0V, 10mA I 1.0AIN O V =4.8V, 10mA I 1.0AIN O V =6.5V, 10mA I 1.0AIN O 0.005 0.003 90Adjust Pin Current Temp. Coefficient Thermal Regulation Ripple Rejection I =10mA, 2.75V V 7VOUT IN V -V =1.5V, I =10mAIN OUT OUT T =25°C, 30ms pulseA µA %/W dB GM1117-Adj IADJ TC RA V -V =1.5V, I =1.0AIN OUT OUT %/°C 0.04 0.20I =10mA, 2.75V V 7VOUT IN GM1117 A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

APPLICATION INFORMATION

GM1117 linear regulators provide fixed and adjustable output voltages at currents up to 1.0A. These regula- tors are protected against overcurrent conditions and in- clude thermal shutdown protection. The GM11 17's have a composite PNP-NPN output transistor and re- quire an output capacitor for stability. A detailed proce- dure for selecting this capacitor follows. Adjustable Operation The GM1117 has an output voltage range of 1.25 V to 5.5 V. An external resistor divider sets the output volt- age as shown in Figure 1. The regulator maintains a fixed 1.25V (typical) reference between the output pin and the adjust pin. A resistor divider network R1 and R2 causes a fixed current to flow to ground. This current creates a voltage across R2 that adds to the 1.25 V across R1 and sets the overall output voltage. The adjust pin current (typically 50 µA) also flows through R2 and adds a small error that should be taken into account if precise adjustment of V is OUT necessary. The output voltage is set according to the formula: The term I Adj × R2 represents the error added by the adjust pin current. R1 is chosen so that the minimum load current is at least 2.0 mA. R1 and R2 should be the same type, e.g. metal film for best tracking over temperature. While not required, a bypass capacitor from the adjust pin to ground will improve ripple rejection and transient response. A 0.1 µF tantalum capacitor is recommended for “first cut” design. Type and value may be varied to obtain optimum performance vs. price. Stability Considerations The output compensation capacitor helps to deter- mine three main characteristics of a linear regula- tor's performance: start-up delay, load transient re- sponse, and loop stability. The capacitor value and type is based on cost, availability, size and tempera- ture constraints. A tantalum or aluminum electrolytic capacitor is preferred, as a film or ceramic capacitor with almost zero ESR can cause instability. An alu- minum electrolytic capacitor is the least expensive type, but when the circuit operates at low tempera- tures, both the value and ESR of the capacitor will vary widely. For optimum performance over the full operating temperature range, a tantalum capacitor is best. A 22µF tantalum capacitor will work fine in most applications, but with high current regulators such as the GM11 17 higher capacitance values will improve the transient response and stability. Most ap- plications for the GM1117's involve large changes in load current, so the output capacitor must supply in- stantaneous load current. The ESR of the output ca- pacitor causes an immediate drop in output voltage given by: In microprocessor applications an output capacitor network of several tantalum and ceramic capacitors in parallel is commonly used. This reduces overall ESR and minimizes the instantaneous output volt- age drop under transient load conditions. The output capacitor network should be placed as close to the load as possible for the best results. Used with large output capacitance values and the input voltage is instantaneously shorted to ground, damage can occur. In this case, a diode connected as shown above in Figure 1. GM1117 V = V X ( ) + I X R2 OUT REF Adj R1 + R2 DV = I x ESRD VREF IAdj CAdj C2C1 VIN VOUTVIN VOUT Adj GM1117 Figure 1. Resistor Divider Scheme

The thermal characteristics of an IC depend four fac- tors: 1. Maximum Ambient Temperature T (°C)A 2. Power Dissipation P (Watts)D 3. Maximum Junction Temperature T (°C) J 4. Thermal Resistance Junction to ambient R JAQ (°C/W) The relationship of these four factors is expressed by equation (1): Maximum ambient temperature and power dissipa- tion are determined by the design while the maximum junction temperature and thermal resistance depend on the manufacturer and the package type. The maximum power dissipation for a regulator is ex- pressed by equation (2): where: V is the maximum input voltage,IN(max) V is the minimum output voltage,OUT(min) I is the maximum output currentOUT(max) I is the maximum quiescent current at I .Q OUT(max) A heat sink effectively increases the surface area of the package to improve the flow of heat away from the IC into the air. Each material in the heat flow path between the IC and the environment has a thermal re- sistance. Like series electrical resistances, these re- sistance are summed to determine R , the total QJA thermal resistance between the junction and the air. This is expressed by equation (3): Where all of the following are in °C/W: R is thermal resistance of junction to case, QJC R is thermal resistance of case to heat sink,QCS R is thermal resistance of heat sink to ambient air QSA The value for R is calculated using equation (3) QJA and the result can be substituted in equation (1). The value for R is 3.5°C/W for a given package type QJC based on an average die size. For a high current reg- ulator such as the GM1117 the majority of the heat is generated in the power transistor section. A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

SOT- 223 PACKAGE OUTLINE DIMENSIONS 0~10° Pad Layout 0.059 1.5 0.059 1.5 0.059 1.5 0.248 6.3 0.091 2.3 0.091 2.3 0.079 2.0 0.079 2.0 Inches mm 0.15 3.8 Unit: mm 3.0 ± 0.05 7.0 ± 0.15 1.75 ± 0.10 3.5 ± 0.10 0.70 ± 0.05 2.30TYP 4.6 ± 0.1 0.95TYP 0~0.075 0.3 ± 0.05 0.65 ± 0.10 1.80max 0.60 1.75 ± 0.10 0.06 ± 0.04 6.50 ± 0.10 1.6 ± 0.10 0.84 0.46 13° 13° TO-252-3 P ACKAGE OUTLINE DIMENSIONS 6.50 ± 0.05 5.340 ± 0.05 29° ± 0.5° REF 0.6 6.10 ± 0.05 7.20 ± 0.05 0.75 ± 0.10 0.89 ± 0.05 0.81 ± 0.038 2.30 ± 0.05 0.508 ± 0.0127 0.070 ± 0.05 1.0 ± 0.05 0.75 ± 0.10 1.525 ± 0.10 2.70 ± 0.10 9.900 R0.15 max Unit: mm R 0.25 ± 0.13 A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Pad Layo ut 0.244 6.20 0.228 5.80 0.118 3.0 0.063 1.6 0.243 6.172 0.101 2.58 Inches mm ( ) Power Management

TO-220 P ACKAGE OUTLINE DIMENSIONS 9.90 ± 0.20 3.60 ± 0.20 1.50 DP0.20 13.08 ± 0.20 9.20 ± 0.20 3.70 ± 0.20 1.30 2.80 ± 0.10 15.90 ± 0.20 18.95 MAX10.08 ± 0.30 1.52 ± 0.10 0.80 ± 0.10

2.54 TYP

(2.54 ± 0.20) 0.50 2.40 ± 0.20 Unit: mm 1.30 ± 0.10 4.50 ± 0.20 8.70 1.70 4.60 1.46 1.00 3.00 45° +0.1 -0.05 +0.1 -0.05 8.0 7.0 7.0 0.9 3-R0.2 10.00 ± 0.20 8.40 1.27 ± 0.10 2 - R 0.3 Pad Layout 0.33 8.38 0.63 17.02 0.12 3.05 0.04 1.016 0.24 6.096 0.42 10.66 Inches mm ( ) A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS TO-263-2 P ACKAGE OUTLINE DIMENSIONS 9.90 ± 0.20 15° 0.40 1.50 DP0.20 9.20 ± 0.20 4.90 ± 0.20 15.3 ± 0.20 1.27 ± 0.10 0.90 ± 0.10 (2.54 ± 0.20) 1.4 ± 0.20 4.50 ± 0.20 1.30+0.1 -0.05 0.10 ± 0.01 2.40 ± 0.20 2.00 ± 0.10 R0.30 R0.30 2.54 ± 0.10 0.50 +0.1 -0.05 4.0 7.0 10.0 ± 0.20 0.40 0.90 7.2 9.20 ± 0.20 4.90 ± 0.20 Unit: mm 10.00 ± 0.20 1.20 R 0.45 0.75 R 0.3 Power Management

Gamma Micro. Circuit Type Output Voltage A: Adj, 1.5: 1.5V Package TC3: TO-252 TB3: TO-220 TA3: TO-263-2 ST3: SOT-223 Shipping R: Tape & Reel T: Tube A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management

A A MICROELECTRONICS GM1117 1.0A LOW DROPOUT PRECISION LINEAR REGULATORS Power Management GM1117