芯美电子 EUP7201 Dual ,Low-Noise,150mA LDO Regulator DESCRIPTION FEATURES The EUP7201 is highly accurate, Dual, low noise, CMOS LDO voltage regulator. Performance features include low output noise, high ripple rejection ratio, low dropout and very fast turn-on times. z z Up to 150mA Output Current (Each LDO) Dual Shutdown Pins Control Each Output z 124μVRMS Low Noise Output The EUP7201 is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. z z z z z z Current Limiting and Thermal Protection Short Circuit Protection 100mV Dropout at 100mA Load Current Limiting Protection Available in SOT23-6 ,TDFN-6 and USP-6 Package RoHS Compliant and 100% Lead (Pb)-Free The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The EUP7201 is available in the SOT23-6 , TDFN-6 and USP-6 package. APPLICATIONS z z z z Cellular Phones Camera, Video Recorders PDAs Hand-held Equipment Typical Application Circuit Figure 1. DS7201 Ver 1.5 Oct. 2007 1 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Pin Configurations Package Type Pin Configurations Package Type SOT23-6 Pin Configurations TDFN-6 Package Type Pin Configurations USP-6 Pin Description PIN SOT23-6 TDFN-6 USP-6 DESCRIPTION EN1 1 3 3 ON/OFF Control VOUT1 VIN 2 2 2 Supply Input EN2 3 1 1 ON/OFF Control VOUT2 VOUT2 4 6 6 Channel 2 Output Voltage GND 5 4 4 Ground VOUT1 6 5 5 Channel1 Output Voltage Note: If EN1 and EN2 are both low, both regulators and the reference turn off. DS7201 Ver 1.5 Oct. 2007 2 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Block Diagram Figure 2. Ordering Information Order Number Package Type Marking Operating Temperature range EUP7201-1.5/2.8VIR1 SOT23-6 NC □ □ □ □ -40 °C to 85°C EUP7201-1.8/2.8VIR1 SOT23-6 NA □ □ □ □ -40 °C to 85°C EUP7201-1.8/2.6VIR1 SOT23-6 NU □ □ □ □ -40 °C to 85°C EUP7201-1.8/3.3VIR1 SOT23-6 NH □ □ □ □ -40 °C to 85°C EUP7201-2.5/2.8VIR1 SOT23-6 ND □ □ □ □ -40 °C to 85°C EUP7201-2.8/1.2VIR1 SOT23-6 NP □ □ □ □ -40 °C to 85°C EUP7201-2.8/2.8VIR1 SOT23-6 NM □ □ □ □ -40 °C to 85°C EUP7201-2.8/3.0VIR1 SOT23-6 NK □ □ □ □ -40 °C to 85°C EUP7201-2.8/3.3VIR1 SOT23-6 NL □ □ □ □ -40 °C to 85°C EUP7201-3.0/3.0VIR1 SOT23-6 NN □ □ □ □ -40 °C to 85°C EUP7201-3.0/3.3VIR1 SOT23-6 NT □ □ □ □ -40 °C to 85°C EUP7201-3.3/3.3VIR1 SOT23-6 NJ □ □ □ □ -40 °C to 85°C DS7201 Ver 1.5 Oct. 2007 3 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Ordering Information (Continued) Order Number Package Type EUP7201-1.8/2.8JIR1 TDFN-6 EUP7201-1.5/2.8UIR1 USP-6 EUP7201-1.8/2.8UIR1 USP-6 EUP7201-1.8/2.6UIR1 USP-6 EUP7201-1.8/3.3UIR1 USP-6 EUP7201-2.5/2.8UIR1 USP-6 EUP7201-2.8/1.2UIR1 USP-6 EUP7201-2.8/2.8UIR1 USP-6 EUP7201-2.8/3.0UIR1 USP-6 EUP7201-2.8/3.3UIR1 USP-6 EUP7201-3.0/3.0UIR1 USP-6 EUP7201-3.0/3.3UIR1 USP-6 EUP7201-3.3/3.3UIR1 USP-6 Marking Operating Temperature range xxxxx 7201A xxx NC xxx NA xxx NU xxx NH xxx ND xxx NP xxx NM xxx NK xxx NL xxx NN xxx NT xxx NJ -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C -40 °C to 85°C EUP7201-□□/□□ □ □ □ □ Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard Package Type V: SOT23 J: TDFN U:USP Output Voltage Option * EUP7201-VOUT1/VOUT2 VIRI DS7201 Ver 1.5 Oct. 2007 4 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Absolute Maximum Ratings ▓ ▓ ▓ ▓ ▓ ▓ Supply Input Voltage --------------------------------------------------------------------------------------- 6V Power Dissipation, PD @ TA =25℃ SOT23-6 ------------------------------------------------------------------------------------------------------ 0.4W Package Thermal Resistance SOT23-6, θJA ------------------------------------------------------------------------------------------------- 250°C/W Lead Temperature (Soldering,10 sec .) -------------------------------------------------------------------- 260°C Storage Temperature Range -------------------------------------------------------------------------------- -65°C to 150°C ESD Rating HBM ---------------------------------------------------------------------------------------------------------- 2kV Recommended Operating Conditions ▓ ▓ ▓ Supply Input Voltage ----------------------------------------------------------------------------------------- 2.5V to 5.5V Enable Input Voltage ----------------------------------------------------------------------------------------- 0V to 5.5V Junction Temperature Range ------------------------------------------------------------------------------- -40°C to 125°C Electrical Characteristics VIN= (VOUT+0.5V) or VIN=2.5V whichever is greater, CIN =COUT=1µF , EN1=EN2= VIN. TA=25°C. Unless otherwise noted Symbol Parameter Conditions EUP7201 Min Typ Max. IL=30mA -2 2 IL=30mA, TA=-40°C~85°C. -3 3 VOUT Output voltage IMAX Maximum Output Current Continuous ,TA=-40°C~85°C. 150 ILIM Current Limit Output Grounded (Steady State) 180 IG VDROP Quiescent Current Dropout Voltage Unit % mA 300 mA No Load (Both LDOs) 110 180 µA IOUT=150mA (Both LDOs) 260 µA IOUT=30mA 30 mV IOUT=100mA, TA=-40°C~85°C. 80 220 mV 13 60 mV 0.02 0.2 %/V VIH EN Input High Threshold 1mA< IOUT < 150mA VIN=VOUT+0.5V to 5.5V IOUT=1mA VIN=2.5V to 5.5V, TA=-40°C~85°C. VIL EN Input Low Threshold VIN=2.5V to 5.5V, TA=-40°C~85°C. 0.4 V ISD EN Input Bias Current EN=GND or VIN 0.1 µA IGSD Shutdown Supply Current EN1=EN2=GND 1 155 µA ℃ 15 ℃ 60 dB ΔVOUT Load Regulation ΔVLINE Line Regulation TSD ΔTSD PSRR Thermal Shutdown Temperature Thermal Shutdown Hysteresis Ripple Rejection Rate DS7201 Ver 1.5 Oct. 2007 VIN=(VOUT+1V) DC+0.5V p-p AC IOUT=1mA, f=1kHz 1.6 V 0.01 5 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Typical Operating Characteristics DS7201 Ver 1.5 Oct. 2007 6 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 DS7201 Ver 1.5 Oct. 2007 EUP7201 7 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 DS7201 Ver 1.5 Oct. 2007 EUP7201 8 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 DS7201 Ver 1.5 Oct. 2007 EUP7201 9 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Application Note External Capacitors Capacitor Characteristics Like any low-dropout regulator, the EUP7201 requires external capacitors for regulator stability. The EUP7201 is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. Input Capacitor The EUP7201 is designed to work with ceramic capacitors on the output to take advantage of the benefits they offer: for capacitance values in the range of 1µF to 4.7µF range, ceramic capacitors are the smallest, least expensive and have the lowest ESR values (which makes them best for eliminating high frequency noise). The ESR of a typical 1µF ceramic capacitor is in the range of 20mΩ to 40mΩ, which easily meets the ESR requirement for stability by the EUP7201. The ceramic capacitor’s capacitance can vary with temperature. The capacitor type X7R, which operates over a temperature range of -55°C to +125°C, will only vary the capacitance to within ±15%. Most large value ceramic capacitors ( ≈ 2.2µF) are manufactured with Z5U or Y5V temperature characteristics. Their capacitance can drop by more than 50% as the temperature goes from 25°C to 85°C. Therefore, X7R is recommended over Z5U and Y5V in applications where the ambient temperature will change significantly above or below 25°C. On/Off Input Operation An input capacitance of ≈ 1µF is required between the EUP7201 input pin and ground (the amount of the capacitance may be increased without limit). This capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. There are no requirements for the ESR on the input capacitor, but tolerance and temperature coefficient must be considered when selecting the capacitor to ensure the capacitance will be ≈ 1µF over the entire operating temperature range. Output Capacitor The EUP7201 is designed specifically to work with very small ceramic output capacitors. A ceramic capacitor (temperature characteristics X7R, X5R, Z5U, or Y5V) in 1 to 22µF range with 5mΩ to 500mΩ ESR range is suitable in the EUP7201 application circuit. The output capacitor must meet the requirement for minimum amount of capacitance and also have an ESR (Equivalent Series Resistance) value which is within a stable range (5mΩ to 500mΩ) No-Load Stability The EUP7201 is turned off by pulling the VEN pin low, and turned on by pulling it high. If this feature is not used, the VEN pin should be tied to VIN to keep the regulator output on at all time. To assure proper operation, the signal source used to drive the VEN input must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section under VIL and VIH. The EUP7201 will remain stable and in regulation with no external load. This is specially important in CMOS RAM keep-alive applications. DS7201 Ver 1.5 Oct. 2007 10 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 Packaging Information SOT23-6 SYMBOLS A A1 b D MILLIMETERS INCHES MIN. MAX. MIN. MAX. 0.00 0.30 1.45 0.15 0.50 0.000 0.012 0.057 0.006 0.020 2.90 0.114 1.60 0.95 0.063 0.037 E1 e E 2.60 3.00 0.102 0.118 L 0.30 0.60 0.012 0.024 DS7201 Ver 1.5 Oct. 2007 11 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 TDFN-6 DETAIL A SYMBOLS A A1 b D D1 E E1 e L DS7201 Ver 1.5 Oct. 2007 MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.30 0.50 2.90 3.10 2.30 2.90 3.10 1.50 0.95 0.38 0.58 INCHES MIN. 0.028 0.000 0.012 0.114 MAX. 0.031 0.002 0.020 0.122 0.090 0.114 0.122 0.059 0.037 0.015 0.023 12 联系电话：１５９９９６４４５７９ ８３１５１７１５ 芯美电子 EUP7201 USP-6 SYMBOLS A A1 b b1 D D1 E E1 e L DS7201 Ver 1.5 Oct. 2007 MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.10 0.30 0.20 0.40 1.70 1.90 1.50 1.90 2.10 0.90 0.50 0.15 0.35 INCHES MIN. 0.028 0.000 0.004 0.008 0.067 MAX. 0.031 0.002 0.012 0.016 0.075 0.059 0.075 0.083 0.035 0.020 0.006 0.014 13 联系电话：１５９９９６４４５７９ ８３１５１７１５