GM6251 ULTRA - LOW DROPOUT POSITIVE VOLTAGE REGULATOR Power Management Features Description Maximum output current 250mA (within The GM6251's combine high accuracy with very low power maximum power dissipation) consumption, providing high output current even when the Output voltage: from 1.8 V to 6.0V in 0.1V application requires extremely low input-output voltage dif- increments ferential. Output voltage ±2% The GM6251's include a precision voltage reference, an er- CMOS low power consumption, typically ror correction circuit, over-temperature protection, and a 1.0µA at VOUT = 5.0V current limited output driver. Fast transient response to Input stability typically 0.2%/ V load variations provides excellent stability under dynamic Ultra-low dropout voltage 0.38V @ IOUT = load conditions. 200mA at VOUT = 5.0V The GM6251's come in SOT-25 (150mW), SOT-89 (500mW) and TO-92 packages. Small input/ output differential: 0.4V at 160mA (VOUT = 3.3V) SOT-25 (150mW), SOT-89 (500mW) and TO-92 packages Application Palmtops Battery Powered Equipment Portable Cameras Reference Voltage Sources Video Recorders VIN +C IN 1µF (Tantalum) GM6251 VOUT VSS CL + RL 1µF (Tantalum) www.gammamicro.com PRELIMINARY GM6251 VIN Revision 1, Jun. 2004 TYPICAL APPLICATION CIRCUITS 1 GM6251 MARKING INFORMATION & PIN CONFIGURATIONS(TOP VIEW) SOT-25(SOT-23-5) VOUT NC 5 4 TO-92 6251 VV AYWW XXVYW 1 VIN 2 3 VSS NC SOT-89 GM6251 VVAYWW 1. VOUT 2. VSS 3. VIN 1 1 2 VOUT VSS 3 VIN 2 3 XX = Specific Device Code(FA = GM6251) V = Voltage Code VV = Voltage Suffix (18=1.8V ,50=5.0V) A = Assembly Location Y = Year WW, W= Work Week ORDERING INFORMATION GM6251 Ordering Number 2 Output Voltage Voltage Code Package Shipping GM6251-1.8T92B 1.8V TO-92 1,000 Units/ ESD Bag GM6251-1.8T92RL 1.8V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-1.8ST25R 1.8V SOT-25 3,000 Units/ Tape and Reel GM6251-1.8ST89R 1.8V SOT-89 1,000 Units/ Tape and Reel GM6251-2.5T92B 2.5V TO-92 1,000 Units/ ESD Bag GM6251-2.5T92RL 2.5V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-2.5ST25R 2.5V SOT-25 3,000 Units/ Tape and Reel GM6251-2.5ST89R 2.5V SOT-89 1,000 Units/ Tape and Reel GM6251-2.7T92B 2.7V TO-92 1,000 Units/ ESD Bag GM6251-2.7T92RL 2.7V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-2.7ST25R 2.7V SOT-25 3,000 Units/ Tape and Reel GM6251-2.7ST89R 2.7V SOT-89 1,000 Units/ Tape and Reel GM6251-2.8T92B 2.8V TO-92 1,000 Units/ ESD Bag GM6251-2.8T92RL 2.8V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-2.8ST25R 2.8V SOT-25 3,000 Units/ Tape and Reel GM6251-2.8ST89R 2.8V SOT-89 1,000 Units/ Tape and Reel GM6251-3.0T92B 3.0V TO-92 1,000 Units/ ESD Bag GM6251-3.0T92RL 3.0V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-3.0ST25R 3.0V SOT-25 3,000 Units/ Tape and Reel GM6251-3.0ST89R 3.0V SOT-89 1,000 Units/ Tape and Reel E G T H J * For detail Ordering Number identification, please see last page. GM6251 Ordering Number Output Voltage Voltage Code Package Shipping GM6251-3.2T92B 3.2V TO-92 1,000 Units/ ESD Bag GM6251-3.2T92RL 3.2V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-3.2ST25R 3.2V SOT-25 3,000 Units/ Tape and Reel GM6251-3.2ST89R 3.2V SOT-89 1,000 Units/ Tape and Reel GM6251-3.3T92B 3.3V TO-92 1,000 Units/ ESD Bag GM6251-3.3T92RL 3.3V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-3.3ST25R 3.3V SOT-25 3,000 Units/ Tape and Reel GM6251-3.3ST89R 3.3V SOT-89 1,000 Units/ Tape and Reel GM6251-3.5T92B 3.5V TO-92 1,000 Units/ ESD Bag GM6251-3.5T92RL 3.5V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-3.5ST25R 3.5V SOT-25 3,000 Units/ Tape and Reel GM6251-3.5ST89R 3.5V SOT-89 1,000 Units/ Tape and Reel GM6251-3.6T92B 3.6V TO-92 1,000 Units/ ESD Bag GM6251-3.6T92RL 3.6V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-3.6ST25R 3.6V SOT-25 3,000 Units/ Tape and Reel GM6251-3.6ST89R 3.6V SOT-89 1,000 Units/ Tape and Reel GM6251-4.0T92B 4.0V TO-92 1,000 Units/ ESD Bag GM6251-4.0T92RL 4.0V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-4.0ST25R 4.0V SOT-25 3,000 Units/ Tape and Reel GM6251-4.0ST89R 4.0V SOT-89 1,000 Units/ Tape and Reel GM6251-4.4T92B 4.4V TO-92 1,000 Units/ ESD Bag GM6251-4.4T92RL 4.4V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-4.4ST25R 4.4V SOT-25 3,000 Units/ Tape and Reel GM6251-4.4ST89R 4.4V SOT-89 1,000 Units/ Tape and Reel GM6251-4.5T92B 4.5V TO-92 1,000 Units/ ESD Bag GM6251-4.5T92RL 4.5V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-4.5ST25R 4.5V SOT-25 3,000 Units/ Tape and Reel GM6251-4.5ST89R 4.5V SOT-89 1,000 Units/ Tape and Reel GM6251-5.0T92B 5.0V TO-92 1,000 Units/ ESD Bag GM6251-5.0T92RL 5.0V TO-92 2,000 Units/ Ammo Pack (Tape) GM6251-5.0ST25R 5.0V SOT-25 3,000 Units/ Tape and Reel GM6251-5.0ST89R 5.0V SOT-89 1,000 Units/ Tape and Reel U K V L M W N Q * For detail Ordering Number identification, please see last page. GM6251 ORDERING INFORMATION (Continued) 3 GM6251 ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATINGS VIN 12 V Output Voltage VOUT VSS - 0.3 ~ VIN + 0.3 V Output Current IOUT 500 mA PD 500 mW Operating Ambient Temperature Topr -30 ~ +80 °C Storage Temperature Tstg -40 ~ +125 °C Input Voltage Continuous Total Power Dissipation (SOT - 89) BLOCK DIAGRAM VIN VOUT Current Limiter + Voltage Reference GM6251 VSS 4 UNITS GM6251 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Output Voltage Min Typ Max GM6251-1.8V 1.764 1.800 1.836 GM6251-2.5V 2.450 2.500 2.550 GM6251-2.7V 2.646 2.700 2.754 GM6251-2.8V 2.744 2.800 2.856 GM6251-3.0V 2.940 3.000 3.060 GM6251-3.2V 3.136 3.200 3.264 GM6251-3.3V (Note 2) VOUT(E) GM6251-3.5V Maximum Output Current Condition IOUT=40mA, VIN >VDrop+VOUT 3.234 3.300 3.366 3.528 3.600 3.672 GM6251-4.0V 3.920 4.000 4.080 GM6251-4.4V 4.312 4.400 4.488 GM6251-4.5V 4.410 4.500 4.590 GM6251-5.0V 4.900 5.000 5.100 VIN=3.0V, VOUT(E) 1.62V GM6251-2.5V VIN=4.0V, VOUT(E) 2.3V GM6251-2.7V VIN=4.0V, VOUT(E) 2.43V GM6251-2.8V VIN=4.0V, VOUT(E) 2.52V GM6251-3.0V VIN=4.0V, VOUT(E) 2.7V GM6251-3.2V VIN=4.0V, VOUT(E) 2.88V VIN=4.0V, VOUT(E) 2.97V GM6251-3.5V VIN=5.0V, VOUT(E) 3.15V GM6251-3.6V VIN=5.0V, VOUT(E) 3.24V GM6251-4.0V VIN=5.0V, VOUT(E) 3.6V GM6251-4.4V VIN=6.0V, VOUT(E) 3.96V GM6251-4.5V VIN=6.0V, VOUT(E) 4.05V GM6251-5.0V VIN=6.0V, VOUT(E) 4.5V GM6251-3.3V IOUT max V 1 mA 1 3.430 3.500 3.570 GM6251-3.6V GM6251-1.8V Unit Circuit 250 GM6251 Symbol Parameter 5 GM6251 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Symbol Parameter Load Stability Max 60mA 45 90 GM6251-2.5V VIN=3.5V, 1mA IOUT 80mA 45 90 GM6251-2.7V VIN=3.7V, 1mA IOUT 80mA 45 90 GM6251-2.8V VIN=3.8V, 1mA IOUT 80mA 45 90 GM6251-3.0V VIN=4.0V, 1mA IOUT 80mA 45 90 GM6251-3.2V VIN=4.2V, 1mA IOUT 80mA 45 90 VIN=4.3V, 1mA IOUT 100mA 45 90 GM6251-3.5V VIN=4.5V, 1mA IOUT 100mA 45 90 GM6251-3.6V VIN=4.6V, 1mA IOUT 100mA 45 90 GM6251-4.0V VIN=5.0V, 1mA IOUT 100mA 40 80 GM6251-4.4V VIN=5.4V, 1mA IOUT 100mA 40 80 GM6251-4.5V VIN=5.5V, 1mA IOUT 100mA 40 80 VIN=6.0V, 1mA IOUT 100mA GM6251-3.3V GM6251-2.5V GM6251-2.7V GM6251-2.8V GM6251-3.0V GM6251-3.2V GM6251-3.3V GM6251-3.5V GM6251-3.6V GM6251-4.0V GM6251-4.4V GM6251-4.5V GM6251-5.0V GM6251 Typ VIN=2.8V, 1mA IOUT GM6251-1.8V 6 Min GM6251-1.8V DVOUT GM6251-5.0V Input - Output (Note 3) Voltage Differential Condition Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 Vdif1 Vdif2 IOUT = 60mA IOUT = 160mA IOUT = 80mA IOUT = 160mA IOUT = 80mA IOUT = 160mA IOUT = 80mA IOUT = 160mA IOUT = 80mA IOUT = 160mA IOUT = 80mA IOUT = 160mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA IOUT = 100mA IOUT = 200mA 40 80 180 900 180 550 180 400 180 400 180 400 180 400 170 400 120 380 120 380 170 400 120 380 120 380 120 380 360 1300 360 850 360 700 360 700 360 700 360 700 330 630 300 600 300 600 330 630 300 600 300 600 300 600 Unit Circuit mV 1 mV 1 GM6251 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Supply Current Condition GM6251-1.8V VIN = 2.8V GM6251-2.5V VIN = 3.5V GM6251-2.7V VIN = 3.7V GM6251-2.8V VIN = 3.8V GM6251-3.0V VIN = 4.0V GM6251-3.2V VIN = 4.2V GM6251-3.3V ISS VIN = 4.3V GM6251-3.5V VIN = 4.5V GM6251-3.6V VIN = 4.6V GM6251-4.0V VIN = 5.0V GM6251-4.4V VIN = 5.4V GM6251-4.5V VIN = 5.5V GM6251-5.0V VIN = 6.0V Output Current Limit GM6251-2.5V GM6251-2.7V GM6251-2.8V GM6251-3.0V GM6251-3.2V GM6251-3.3V DVOUT DVIN • VOUT GM6251-3.5V GM6251-3.6V GM6251-4.0V GM6251-4.4V GM6251-4.5V GM6251-5.0V Input Voltage Output Voltage Temperature Characteristics Typ Max 1.0 2.9 IOUT = 40mA 2.8V VIN 10.0V IOUT = 40mA 3.5V VIN 10.0V IOUT = 40mA 3.7V VIN 10.0V IOUT = 40mA 3.8V VIN 10.0V IOUT = 40mA 4.0V VIN 10.0V IOUT = 40mA 4.2V VIN 10.0V IOUT = 40mA 4.3V VIN 10.0V IOUT = 40mA 4.5V VIN 10.0V IOUT = 40mA 4.6V VIN 10.0V IOUT = 40mA 5.0V VIN 10.0V IOUT = 40mA 5.4V VIN 10.0V IOUT = 40mA 5.5V VIN 10.0V IOUT = 40mA 6.0V VIN 10.0V 0.2 VIN DVOUT DTopr • VOUT IOUT = 10mA -30°C Topr 80°C ±100 Unit Circuit µA 2 mA - 0.3 %/ V 1 10 V - ppm/°C 1 500 GM6251-1.8V Input Stability Min Note: 1. VOUT(T) = Specified Output Voltage 2. VOUT(E) = Effective Output Voltage (the output voltage when"VOUT(T) + 1.0V" is provided at the VIN pin while maintaining a certain IOUT value) 3. Vdif = { VIN1 (Note 4) - VOUT (E)} 4. VIN1 = The input voltage at the time 98% of VOUT(E) is output (input voltage has been gradually reduced). * Output Voltage from 1.8V to 6.0V in 0.1V increments ate available GM6251 Symbol Parameter 7 GM6251 DIRECTIONS FOR USE Notes on Use 1. Please use this IC within the stipulated absolute maximum ratings as the IC is liable to malfunction outside of such parameters. 2. There is a possibility theat oscillation may occur as a result of the impedance present between the power supply and the IC's input. Where impedance is 10W or more, please use a capacitor (CIN) of at least 1µF. With a large output current, operations can be stabilised by increasing capacitor size (CIN). If CIN is small and capacitor size (CL) is increased, there is a possibility of oscillation due to input impedance. In such cases, operations can be stabilised by either increasing the size of CIN of decreasing the size of CL. 3. Please ensure that output current (IOUT) is less than Pd ÷ (VIN - VOUT) and does not exceed the stipulated continuous total power dissipation value (Pd) for the package. TEST CIRCUIT Circuit 1 GM6251 VIN VO VIN + 1µF (Tantalum) A + VSS 1µF (Tantalum) V Circuit 2 GM6251 GM6251 VIN VO 8 VIN VSS A Open RL GM6251 PERFORMANCE CHARACTERISTICS FOR GM6251 - 3.0 1.0 Input/ Output Voltage Diff.: VDIF (V) 3.0 Topr= 25°C 2.9 2.8 2.7 0 VIN=4V CIN=1µF CL=1µF 20 40 60 CIN=1µF 0.8 CL=1µF 0.6 0.4 0.2 -0.2 80 100 120 140 160 180 Topr= 25°C 0.0 0 20 40 Output Current: IOUT (mA) Figure 1: Output Voltage vs. Output Current 3.05 IOUT=1mA Output Voltage: VOUT (V) Output Voltage: VOUT (V) 100 120 140 160 180 3.10 2.80 40mA 2.60 10mA Topr= 25°C CIN=1µF CL=1µF 2.40 IOUT=1mA 3.00 40mA 3.0 10mA 2.95 Topr= 25°C CIN=1µF CL=1µF 2.90 2.85 2.20 2.5 2.5 3 4 Input Voltage: VIN(V) 5 6 7 8 9 10 Input Voltage: VIN(V) Figure 3: Output Voltage vs. Input voltage Figure 4: Output Voltage vs. Input voltage 3.0 2.50 Topr= 25°C Supply Current: ISS (µA) Supply Current: ISS (µA) 80 Figure 2: Input/ Output Voltage differential vs. Output Current 3.20 3.00 60 Output Current: IOUT (mA) 2.0 1.0 2.25 Topr= 25°C 2.00 1.75 1.50 0 0 2 4 6 8 10 Input Voltage: VIN(V) Figure 5: Supply Current vs. Input Voltage 3 4 5 6 7 8 9 Input Voltage: VIN(V) Figure 6: Supply Current vs. Input Voltage 10 GM6251 Output Voltage: VOUT (V) 3.1 9 GM6251 PERFORMANCE CHARACTERISTICS FOR GM6251- 3.0 6 5.0 6 5 2 4 0 3 Output Voltage -2 2 IOUT= 1mA CL=1µF -4 4.5 4.0 4 IOUT= 1mA CL=1µF 3 3.5 Output Voltage 2 1 -6 3.0 2.5 1 0 Time (0.4msec/ div) Time (1msec/ div) Figure 7: Input Transient Response 1 Figure 8: Input Transient Response 2 60 Ripple Rejection Rate :RR (dB) Input Voltage 5 Input Voltage: VIN(V) 4 Output Voltage: VOUT (V) Input Voltage: VIN(V) Input Voltage VIN= 4VDC+1VP-PAC IOUT= 40mA, CL= 1µF 50 40 30 20 10 0 0.01 0.1 1 Ripple Frequency: f (kHz) 10 Figure 9: Ripple Rejection Rate TO-92 PACKAGE OUTLINE DIMENSIONS 4.6 ± 0.1 3.6 ± 0.15 2° 2° 4.6 ± 0.1 D 2.3 1.45 ± 0.1 14.5 ± 0.5 GM6251 2° 2° 3 - 0.46 0.38 ± 0.015 1.27 1.27 Unit: mm 3.6 ± 0.15 10 1.3 ± 0.1 5° 5° Output Voltage: VOUT (V) 6 GM6251 SOT-25(SOT-23-5) PACKAGE OUTLINE DIMENSIONS 2.9 ± 0.1 1.9 ± 0.05 0.13 0.95 ± 0.038 Pad Layout F 0.028 0.7 0~0.1 0.15 ± 0.05 2.8 ± 0.1 0.094 2.4 0.65 ± 0.05 0.35 ± 0.03 5° 0.8 ± 0.05 0.037 0.095 0.037 0.095 0.074 1.9 5° ( Inches mm ) 1.10 ± 0.1 SOT-89 PACKAGE OUTLINE DIMENSIONS 4.50 ± 0.05 1.650 REF 2 R 0.13~3X G NO DRAFT~2 3 R 0.13~4X 4.20 ± 0.05 2.5 ± 0.05 45° 6° 1.00 ± 0.07 Units: mm Pad Layout 1.50 ± 0.05 1.400 REF R 0.1 MAX 0.7 0.46 ± 0.025 6°~2X 0.38 ± 0.01 1.5 R 0.13~2X R 0.13~2X 6°~2X Unit: mm 1 GM6251 3.00 ± 0.025 1.50 1.5 1.50 11 GM6251 ORDERING NUMBER GM 6251 1.8 T92 B Shipping B: ESD Bag RL: Ammo Pack T: Tube R: Tape & Reel Gamma Micro. Circuit Type GM6251 Output Voltage 1.8: 1.8V, 2.5: 2.5V 2.7: 2.7V, 2.8: 2.8V 3.0: 3.0V, 3.3: 3.3V 3.5: 3.5V, 3.6: 3.6V 4.0: 4.0V, 4.4: 4.4V 4.5: 4.5V, 5.0: 5.0V 12 (Tape) Package ST25: SOT-25 T92: TO-92 ST89: SOT-89