GM7110-ATA5R

GM7110_05 GAMMA | Alldatasheet

Document overview

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Technical content

Features

3.3V, 5V, 12V, 15V and Adjustable version output voltage range 1A output current Requires Only 4 External Components High Efficiency TTL shutdown capability and low power standby mode Thermal shutdown, current limit protection Uses standard inductors 52 kHz fixed frequency internal oscillator 7V - 40V Unregulated DC Input +CIN 100 µF +VIN GND 1N5819 Output 330 µH Feedback COUT 330 µF 5.0V, 1A Regulated Output+ ON / OFF GM7110-5.0 Application Pre-regulator for linear regulators High-efficiency step-down buck regulator On-card/ board switching regulators Positive to negative converter (buck-boost) GM7110 V0.1 www.gammamicro.com 1 A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management GM7110 of regulators provides all the active functions for a step- down (buck) switching regulator, and drives 1A load with excellent line and load regulation. GM7110 is available in fixed output volt ages of 3.3V, version. These regulators are simple to use and require Features include internal frequency compensation and a fixed- and output load conditions, and ±10% on the oscillator frequency. External shutdown is included with 50 uA(typical) standby current. The output switch has cycle-by-cycle current limiting as well as thermal shutdown for full 1.23V to 37V ±4% max over line and load conditions Adjustable output versions

GM7110-5.0TC5T GM7110-5.0TC5R TO-252-5 TO-252-5 MARKING INFORMATION & PIN CONFIGURATIONS

80 Units/ Tube

2,500 Units/ Tape & Reel 5.0 5.0 GM7110 ON/OFF Feedback Ground Output VIN TO-220- 5 GM7110 VVAYWW V V, VVV = Output Voltage (33=3.3V , 120=12V,A=Adj) A = Assembly Location Y = Year W W = Weekly TO-263-5(D PAK) GM7110 VVAYWW ON/OFF Feedback Ground Output VIN TO-252-5 (DPAK) GM7110 VVAYWW ON/OFF Feedback Ground Output VIN GM7110-A TA5T GM7110-3.3T A5T GM7110-5.0T A5T GM7110-12T A5T GM7110-15T A5T GM7110-A TB5T GM7110-3.3TB5T GM7110-5.0TB5T GM7110-12TB5T GM7110-15TB5T GM7110-A TB5BT GM7110-3.3TB5BT GM7110-5.0TB5BT GM7110-12TB5BT GM7110-15TB5BT GM7110-A TA5R GM7110-3.3T A5R GM7110-5.0T A5R GM7110-12T A5R GM7110-15T A5R TO-220-5 TO-220-5 TO-220-5 TO-220-5 TO-220-5 TO-220-5B TO-220-5B TO-220-5B TO-220-5B TO-220-5B

50 Units / Tube

800 Units/ Tape & Reel

3.3 5.0 5.0 5.0 5.0 3.3 3.3 3.3 A d j A d j Output Voltage Package Shipping Ordering Number

ORDERING INFORMATION

• TB5B: Bent and Staggered Leads of TO-220 package ** For detail Ordering Number identification, please see last page. ON/OFF Feedback Ground Output VIN TO-220- 5B GM7110 VVAYWW 1 2 3 4 5 A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

1.23V Band-Gap Reference 52kHz Oscillator Reset Thermal Shutdown Current Limit Feed- back VIN - + Fixed Gain Error AMP Comparator Driver

1 AMP

L O A D BLOCK DIAGRAM Unregulated DC Input CIN V Output Voltage to Ground (Steady State) Power Dissipation Storage Temperature Range Maximum Junction Temperature Lead Temperature (Soldering, 10 sec.) Maximum Supply Voltage VALUE UNIT ON/OFF Pin Input Voltage -0.3 V VIN Internally Limited -65 to + 150 +150 +260 -1.0 V V GM7110 1.0K R1 VOUT VOUT 3.3V, R2 = 1.7K 5V, R2 = 3.1K 12V, R2 = 8.84K 15V, R2 = 11.3K For ADJ. Version R1 = Open, R2 = 0W RECOMMENDED OPERATING CONDITIONS Temperature Range VALUE UNIT Supply Voltage V -40 T J 125 PARAMETER PARAMETER A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

ELECTRICAL CHARACTERISTICS: GM7110-3.3 (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range)J Parameter Conditions Symbol Min Typ Max Unit Output Voltage Output Voltage Efficiency V = 12V, I = 0.2A IN LOAD V = 12V, I = 1A IN LOAD VOUT VOUT h 3.234 3.168/3.135 3.3 3.3 3.366 3.432/3.465 V V4.75V V 40V, 0.2A I 1A IN LOAD Parameter Conditions Symbol Min Typ Max Unit Output Voltage Output Voltage Efficiency V = 12V, I = 0.2A LIN OAD V = 12V, I = 1A IN LOAD VOUT VOUT h 4.900 4.800/4.750 5.0 5.0 5.100 5.200/5.250 V V ELECTRICAL CHARACTERISTICS: GM7110-5.0 (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range)J 8V V 40V, 0.2A I 1A IN LOAD Parameter Conditions Symbol Min Typ Max Unit Output Voltage Output Voltage Efficiency V = 25V, I = 0.2A IN LOAD V = 15V, I = 1A IN LOAD VOUT VOUT h 11.76 11.52/11.40 12.0 12.0 12.24 12.48/12.60 V V ELECTRICAL CHARACTERISTICS: GM7110-12 (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range)J 15V V 40V, 0.2A I 1A IN LOAD Parameter Conditions Symbol Min Typ Max Unit Feedback Voltage Feedback Voltage Efficiency V = 30V, I = 0.2A IN LOAD V = 18V, I = 1A IN LOAD VOUT VOUT h 14.70 14.40/14.25 15.0 15.0 15.30 15.60/15.75 V V ELECTRICAL CHARACTERISTICS: GM7110-15 (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range)J 18V V 40V, 0.2A I 1A IN LOAD ELECTRICAL CHARACTERISTICS: GM7110-ADJ (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range)J Conditions Symbol Min Typ Max Unit V = 12V, I = 0.2A, V = 5V IN LOAD OUT V = 12V, I = 1.0A, =5VIN LOAD VOUT VOUT VOUT h 1.217 1.193/1.180 1.230 1.230 1.243 1.267/1.280 V V Parameter Feedback Voltage Feedback Voltage Efficiency V 40V, 0.2A I 1A IN LOAD V = 5V OUT A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

ELECTRICAL CHARACTERISTICS: All Output Voltage Versions (Specifications with standard type face are for T = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise J specified, V = 12V for the 3.3V, 5.0V and ADJ version, V = 25V for 12V version. and V = 30V for 15V version. I = 500 mA)IN IN IN LOAD Parameter Conditions Symbol Min Typ Max Unit Oscillator Frequency Saturation Voltage Max Duty Cycle (ON) Output Leakage Current Quiescent Current Standby Quiescent Current Thermal Resistance Feedback Bias Current Current Limit Logic Input Level ON/OFF Pin ON/OFF Pin Input Current V = 5V (Adjustable Version Only)OUT (Note 11) I = 1A (Notes 4)OUT (Note 5) (Note 4, 11) (Notes 6, 7) Output = 0 V Output = -1V (Note 6) ON/OFF Pin = 5V (OFF) V =0VOUT V = Nominal Output VoltageOUT IFB FO VSAT TDC IOL IQ ISTBY VIH VIL VIH IIL 0.9 2.2 7.5 1.4 1.2 1.2 / 1.4 200 kHz V A mA mA mA °C/W V V mA mA nA ON/OFF Pin = 5V (OFF) ON/OFF Pin = 0V (ON) 2.2 / 2.4 1.0 / 0.8 Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indic ate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. Guaranteed specifications and Test conditions are shown in Electrical Characteristics. Note 2: All limits guaranteed at 25°C (standard type face) and over full operating temperature range (bold type face). All 25°C limits are 100% production tested. All limits over full operating temperature range are guaranteed via correlation using standard Statistics Quality Control methods. Note 3: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the GM7110 is used as shown in the Figure 2 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. Note 4: Output pin sourcing current. No diode, inductor or capacitor connected to output. Note 5: Feedback pin removed from output and connected to 0V. Note 6: Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V versions, and +25V for the 12V and 15V versions, to force the output transistor OFF. Note 7: V = 40V IN Note 8: Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted vertically, with ½ inch leads in a socket, or on a PC board with minimum copper area. Note 9: Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted vertically, with ¼ inch leads soldered to a PC board containing approximately 4 square inches of copper area surrounding the leads. Note 10: If the TO-263 package is used, the thermal resistance can be reduced by increasing the PC board Copper area thermally connected to the package. Using 0.5 square inches of copper area, q is 50°C//W, with 1 square inch JA of copper area, q is 37°C/W, and with 1.6 or more square inches of copper area, q is 32°C/W. JA JA Note 11: The oscillator frequency reduces to approximately 11 kHz in the event of an output short or an Overload which causes the regulated output voltage to drop approximately 40% from the nominal output voltage. This self- protection feature lowers the Average power dissipation of Gm7110 By lowering the minimum duty cycle from 5% down to approximately 2%. qJA qJA qJC qJC qJA A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

TEST CIRCUIT AND LAYOUT GUIDELINES Careful layout is important with any switching regulator. Rapidly switching currents associated with wiring inductance generate voltage transients, which can cause problems. To minimize inductance and ground loops, the lengths of the leads indicated by heavy lines in Figure 1 below should be kept as short as possible. Single- point grounding (as indicated in Figure 1) or ground plane construction should be used for best results. When using the Adjustable version, place the programming resistors as close as possible to GM7110, to keep the sensitive feedback wiring short. VIN Unregulated DC Input +VIN CIN GND 3 5 Output Feedback MBR360 C OUT VOUT GM 7110 FIXED OUTPUT ON/OFF L O A D Figure 1(a). Fixed Output Voltage Versions C - 100 µF, 75V, Aluminum ElectrolyticIN C - 330 µF, 25V, Aluminum ElectrolyticOUT D1 - Schottky, MBR360 L1 - 330 µH, R1 - 2k, 0.1% R2 - 6.12k, 0.1% 3L Electronic Corp. TC-331M-1.0A- 5026 330 µH 330 µF 100 µF A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

TO-220-5 PACKAGE OUTLINE DIMENSIONS TO-263-5 P ACKAGE OUTLINE DIMENSIONS Pad Layout 11.5 9 3.8 1.07 Units: mm 17.5 1.7 9.90 15° 0.40 1.50 DP0.20 9.20 4.90 15.3

0.801.70 TYP

(1.70 ± 0.20) 4.50 1.30 0.10 2.40 2.00 R0.30 R0.30 2.54 0.50 4.40 7.0 10.0 0.40 R 0.45 7.2 9.20 4.90 Unit: mm 10.00 4.60 1.20 0.75 8.0 1.75 15.30 R 0.3 1.20 0.90 9.90 ± 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

28.78 MAX

0.50 2.40 ± 0.20 Unit: mm 1.30 ± 0.10 4.50 ± 0.20 8.70 1.70 4.60 +0.1 -0.05 +0.1 -0.05 8.0 ± 0.20 7.0 7.0 ± 0.20 3-R0.2 10.00 ± 0.20 8.40 2 - R 0.3 3.60 ± 0.20 1.2 1.7(TYP) 5-0.8 ± 0.10 9.97 ± 0.20 9.20 ± 0.20 A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

TO-252-5 P ACKAGE OUTLINE DIMENSIONS 29° ± 0.5° 0.256 ± 0.004 6.5 ± 0.1 0.212 ± 0.003 5.375 ± 0.075

0.024 Ref

0.600 Ref

0.24 ± 0.004 6.10 ± 0.1 0.2835 ± 0.0035 7.20 ± 0.1 0.0235 ± 0.0015 0.60 ± 0.025 0.050BSC 1.270BSC 0.025 ± 0.002 0.64 ± 0.05 0.039 ± 0.002 1.0 ± 0.05 0.02 ± 0.001 0.51 ± 0.02 0.06 ± 0.004 1.525 ± 0.1 0.39 ± 0.008 9.9 ± 0.2 0.003 ± 0.002 0.07 ± 0.05 0.091 ± 0.002 2.3 ± 0.05 Inches mm ( ) A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR TO-220-5B P ACKAGE OUTLINE DIMENSIONS 0.4 10.16 ± 0.006 ± 0.15 Inches mm ( ) 0.151 ± 0.002 3.84 ± 0.05 0.108 .74 ± 0.006 2 ± 0.15 0.4985 ± 0.0075 12.66 ± 0.2 0.268 0.68 ± 0.004 ± 0.1 0.032 0.81 ± 0.004 ± 0.1 0.213 ± 0.004 5.4 ± 0.1 0.138 ± 0.004 3.5 ± 0.1 0.1535 ± 0.0035 3.9 ± 0.1

0.220 TYP

1.700 TYP

0.18 ± 0.004 4.57 ± 0.1 0.05 ± 0.004 1.27 ± 0.1 0.05 ± 0.004 1.27 ± 0.1 0.358 ± 0.008 9.1± 0.2 0.9645 ± 0.0075 24.5 ± 0.2 0.996 ± 0.008 25.3± 0.2 0.105 ± 0.006 2.76± 0.15 0.173 ± 0.006 4.4 ± 0.15 0.331 ± 0.006 8.4 ± 0.15 0.0165 ± 0.0045 0.42 ± 0.11 Pad Layo ut Units: mm 0.9 1.27 6.25 3.81 Power Management

Gamma Micro. Circuit Type Output Voltage A: Adj, 3.3: 3.3V 5.0: 5.0V, 12: 12V 15: 15V Package TA5: TO-263-5 TB5: TO-220-5 TC5: TO-252-5 Shipping R: Tape & Reel T: Tube A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management

A A MICROELECTRONICS GM7110 1A STEP-DOWN VOLTAGE SWITCHING REGULATOR Power Management GM7110