PT7M8202 LDO Regulator Features Description Output Current 300mA or more The PT7M8202 series are highly accurate, low dropout Ultra-Low-Noise for RF Application: voltage regulators with low noise, high ripple rejection and low current consumption for portable RF and 30VRMS 1.2V wireless applications. Quick Start-Up (Typically 50s) The PT7M8202 includes a reference voltage source, an Dropout Voltage: 270mV 300mA for 3.3V error amplifier, a driver transistor, a current limit Wide Operating Voltage Range: 1.8V to 5.5V protection a thermal protection and an internal phase Output Voltage Range: 1.2V to 3.3V(100 mV Step) compensator. Standby Current: 0.1A A noise bypass pin is available for further reduction of High Ripple Rejection: 80dB 1kHz output noise. Output Current-Limit Protection The output voltage for the regulator is set by factory Thermal Shutdown Protection trimming within a range of 1.2V to 3.3V in 100mV step Operating Temperature Range: -40 ~+85 includes 2.85V. The PT7M8202 series are stable with Low ESR Capacitor compatible: Ceramic capacitor low ESR ceramic capacitors. Lead Free and Green Package: SOT23-5L, SC70-5L, TDFN-6L 1.82 Applications Pin Configuration Mobile phones (PDC, GSM, CDMA, IMT2000 etc.) Cordless phones and radio communication 1 VIN 5 VOUT Digital still cameras and video cameras PDAs GND 2 MP3 players EN 3 4 BP Portable devices SC70-5L/SOT23-5L (Top View) VIN 1 6 EN NC 2 5 GND VOUT 3 4 BP TDFN-6L 1.8x2 (Top View) Pin Description Pin No. for TDFN-6L I/O Name Descriptions SOT23-5L/SC70-5L Regulator Supply Input. Supply voltage can range from 1 1 I VIN 1.8V to 5.5V. Bypass with a 1 F ceramic capacitor (X5R/X7R) to GND. 2 5 P GND Ground. 3 6 I EN ON/OFF Control of Regulator. 4 4 - BP Reference Noise Bypass. Output of Regulator. Bypass with a 1 F ceramic 5 3 O VOUT capacitor (X5R/X7R) to GND. - 2 - NC No Connect . ECN No: 11-0014 PT0338S-1 01/13/11 1 PT7M8202 LDO Regulator Maximum Ratings Storage Temperature.. -55 to +125 Note: Ambient Temperature with Power Applied......................-40 to +85 Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the Input Voltage...+6.0V device. This is a stress rating only and functional Output Voltage .....-0.3 to V +0.3V CC operation of the device at these or any other condi- EN pin Voltage +6.0V tions above those indicated in the operational sec- DC Input/Output Current 700mA tions of this specification is not implied. Exposure Power Dissipation...SOT23/400mW to absolute maximum rating conditions for extended SC70/300mW periods may affect reliability. TDFN/600mW Recommended Operating Conditions Symbol Parameter Min. Typ. Max. Unit V Operating Voltage 1.8 - 5.5 V CC T Operating temperature -40 25 85 C A Electrical Characteristics (T =25 , Bypass capacitor=22nF) A Parameter Symbol Conditions Min. Typ. Max. Unit V V *2 *1 OUT(S) OUT(S) Output Voltage V V =V +1.0V, I =30mA V V OUT(E) IN OUT(S) OUT OUT(S) *0.98 *1.02 Maximum Output I V =V +1.0V 300 - - mA OUTMAX IN OUT(S) Current 1.7VV 1.8V - 0.39 0.51 OUT(S) 0.33 *3 1.9VV 2.3V - 0.43 OUT(S) Dropout Voltage Vdif I = 300mA V OUT 2.4VV 2.7V - 0.30 0.39 OUT(S) 2.8VV 3.3V - 0.27 0.35 OUT(S) Supply Current I V = V +1.0V, no load - 70 100 A SS IN OUT(S) V = V +1.0V IN OUT(S) Standby Current I - 0.1 1 A SB EN=OFF V / V +1.0VV 5.5V OUT OUT(S) IN Line Regulation - 0.05 0.2 %/V *V =30 mA V I IN OUT OUT V = V +1.0V, IN OUT(S) Load Regulation V - 0.6 % OUT2 1.0mA I 300mA OUT Input Voltage V - 1.8 - 5.5 V IN Output Voltage I =30 mA V / OUT OUT - +/-100 - Temperature ppm/ Topr*V -40 Topr 85 OUT Characteristic V = V +1.0 V +1Vp-p AC IN OUT(S) DC Ripple Rejection PSRR - 80 - dB V =1.5V, I =30mA, f=1kHz OUT OUT Current Limit I V = V *0.9 - 450 - mA LIM OUT OUT(S) Thermal Shutdown T 170 SD Thermal Shutdown 40 T SD Hysteresis ENHighVoltage V - 1.5 - - ENH V ENLowVoltage V - - - 0.3 ENL ENHighCurrent I V =V+1.0V -0.10 - 0.10 ENH IN OUT(S) A ENLow Current I V = V +1.0V, EN=OFF -0.10 - 0.10 ENL IN OUT(S) Output Discharge V = V +1.0V IN OUT(S) Rdis - 200 - Resistance EN=OFF Output Noise V =1.2V 10Hz to 100kHz, I =30mA, OUT OUT e - 30 - V ON RMS Voltage C =1F OUT Note: *1: V =Specified output voltage. OUT(S) *2: V =Effective output voltage. OUT(E) (I.e. the output voltage whenV +1.0 is provided at the VIN pin while maintaining a certain I value). OUT(S) OUT (*5) (*4) *3: Vdif= V -V . IN1 OUT1 *4: V =A voltage equal to 98% of the output voltage whenever an amply stabilized I V + 1.0V is input. OUT1 OUT OUT(S) *5: V =The input voltage when V appears as input voltage is gradually decreased. IN1 OUT1 *6: Unless otherwise stated, V =V +1.0V IN OUT(S) ECN No: 11-0014 PT0338S-1 01/13/11 2