EUP7201 EUTECH | Alldatasheet

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Technical content

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Dual ,Low-Noise,150mA LDO Regulator

DESCRIPTION

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. 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. 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.

FEATURES

z Up to 150mA Output Current (Each LDO) z Dual Shutdown Pins Control Each Output z 124μVRMS Low Noise Output z Current Limiting and Thermal Protection z Short Circuit Protection z 100mV Dropout at 100mA Load z Current Limiting Protection z Available in SOT23-6 ,TDFN-6 and USP-6 Package z RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

z Camera, Video Recorders z PDAs z Hand-held Equipment Typical Application Circuit Figure 1.

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Pin Configurations Package Type Pin Configurations Package Type Pin Configurations SOT23-6 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 V OUT1 VIN 2 2 2 Supply Input EN2 3 1 1 ON/OFF Control V OUT2 VOUT2 4 6 6 Channel 2 Output V oltage GND 5 4 4 Ground VOUT1 6 5 5 Channel1 Output V oltage Note: If EN1 and EN2 are both low, both regulators and the reference turn off.

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Block Diagram Figure 2.

Ordering Information

Order Number Package Type Marking Operating Temperature range EUP7201-1.5/2.8VIR1 SOT23-6 N C □ □ □ □ -40 °C to 85°C EUP7201-1.8/2.8VIR1 SOT23-6 N A □ □ □ □ -40 °C to 85°C EUP7201-1.8/2.6VIR1 SOT23-6 N U □ □ □ □ -40 °C to 85°C EUP7201-1.8/3.3VIR1 SOT23-6 N H □ □ □ □ -40 °C to 85°C EUP7201-2.5/2.8VIR1 SOT23-6 N D □ □ □ □ -40 °C to 85°C EUP7201-2.8/1.2VIR1 SOT23-6 N P □ □ □ □ -40 °C to 85°C EUP7201-2.8/2.8VIR1 SOT23-6 N M □ □ □ □ -40 °C to 85°C EUP7201-2.8/3.0VIR1 SOT23-6 N K □ □ □ □ -40 °C to 85°C EUP7201-2.8/3.3VIR1 SOT23-6 N L □ □ □ □ -40 °C to 85°C EUP7201-3.0/3.0VIR1 SOT23-6 N N □ □ □ □ -40 °C to 85°C EUP7201-3.0/3.3VIR1 SOT23-6 N T □ □ □ □ -40 °C to 85°C EUP7201-3.3/3.3VIR1 SOT23-6 N J □ □ □ □ -40 °C to 85°C

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Ordering Information (Continued) Order Number Package Type Marking Operating Temperature range EUP7201-1.8/2.8JIR1 TDFN-6 xxxxx 7201A -40 °C to 85°C EUP7201-1.5/2.8UIR1 USP-6 xxx NC -40 °C to 85°C EUP7201-1.8/2.8UIR1 USP-6 xxx NA -40 °C to 85°C EUP7201-1.8/2.6UIR1 USP-6 xxx NU -40 °C to 85°C EUP7201-1.8/3.3UIR1 USP-6 xxx NH -40 °C to 85°C EUP7201-2.5/2.8UIR1 USP-6 xxx ND -40 °C to 85°C EUP7201-2.8/1.2UIR1 USP-6 xxx NP -40 °C to 85°C EUP7201-2.8/2.8UIR1 USP-6 xxx NM -40 °C to 85°C EUP7201-2.8/3.0UIR1 USP-6 xxx NK -40 °C to 85°C EUP7201-2.8/3.3UIR1 USP-6 xxx NL -40 °C to 85°C EUP7201-3.0/3.0UIR1 USP-6 xxx NN -40 °C to 85°C EUP7201-3.0/3.3UIR1 USP-6 xxx NT -40 °C to 85°C EUP7201-3.3/3.3UIR1 USP-6 xxx NJ -40 °C to 85°C L e a d F r e e C o d e 1 : L e a d F r e e 0 : L e a d P a c k i n g R : T a p e & R e e l Operating temperature range I: Industry Standard Package Type V: SOT23 J: TDFN U:USP Output Voltage Option * EUP7201-VOUT1/VOUT2 VIRI

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Absolute Maximum Ratings ▓ Power Dissipation, PD @ TA =25℃ ▓ Package Thermal Resistance ▓ ESD Rating Recommended Operating Conditions

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 EUP7201 Symbol Parameter Conditions Min Typ Max. Unit IL=30mA -2 2 VOUT Output voltage IL=30mA, TA=-40°C~85°C. -3 3 % IMAX Maximum Output Current Continuous ,T A=-40°C~85°C. 150 mA ILIM Current Limit Output Grounded (Steady State) 180 300 mA No Load (Both LDOs) 110 180 µA IG Quiescent Current IOUT=150mA (Both LDOs) 260 µA IOUT=30mA 30 mV VDROP Dropout V oltage IOUT=100mA, TA=-40°C~85°C. 80 220 mV ΔVOUT Load Regulation 1mA< I OUT < 150mA 13 60 mV ΔVLINE Line Regulation VIN=VOUT+0.5V to 5.5V IOUT=1mA 0.02 0.2 %/V VIH EN Input High Threshold V IN=2.5V to 5.5V, TA=-40°C~85°C. 1.6 V VIL EN Input Low Threshold V IN=2.5V to 5.5V, TA=-40°C~85°C. 0.4 V ISD EN Input Bias Current EN=GND or V IN 0.1 µA IGSD Shutdown Supply Current EN1=EN2=GND 0.01 1 µA TSD Thermal Shutdown Temperature 155 ℃ ΔTSD Thermal Shutdown Hysteresis 15 ℃ PSRR Ripple Rejection Rate VIN=(VOUT+1V) DC+0.5V p-p AC IOUT=1mA, f=1kHz 60 dB

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Typical Operating Characteristics

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Application Note External Capacitors 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 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 5m Ω 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 will remain stable and in regulation with no external load. This is specially important in CMOS RAM keep-alive applications. Capacitor Characteristics 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 1 µF 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 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 V EN 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 V EN 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.

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 Packaging Information SOT23-6 SYMBOLS MILLIMETERS INCHES MIN. MAX. MIN. MAX. A - 1.45 - 0.057 A1 0.00 0.15 0.000 0.006 b 0.30 0.50 0.012 0.020 D 2.90 0.114 E1 1.60 0.063 e 0.95 0.037 E 2.60 3.00 0.102 0.118 L 0.30 0.60 0.012 0.024

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 TDFN-6 MILLIMETERS INCHES SYMBOLS MIN. MAX. MIN. MAX. A 0.70 0.80 0.028 0.031 A1 0.00 0.05 0.000 0.002 b 0.30 0.50 0.012 0.020 D 2.90 3.10 0.114 0.122 D1 2.30 0.090 E 2.90 3.10 0.114 0.122 E1 1.50 0.059 e 0.95 0.037 L 0.38 0.58 0.015 0.023 DETAIL A

D S 7 2 0 1 V e r 1 . 5 O c t . 2 0 0 7 USP-6 MILLIMETERS INCHES SYMBOLS MIN. MAX. MIN. MAX. A 0.70 0.80 0.028 0.031 A1 0.00 0.05 0.000 0.002 b 0.10 0.30 0.004 0.012 b1 0.20 0.40 0.008 0.016 D 1.70 1.90 0.067 0.075 D1 1.50 0.059 E 1.90 2.10 0.075 0.083 E1 0.90 0.035 e 0.50 0.020 L 0.15 0.35 0.006 0.014