Low Power, 1.1uA LDO Regulator

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1 Low Power,.uA LDO Regulator FEATURES Maximum Output Current: more than 5mA Dropout Voltage: 6 ma (Vout=.V) Low Power Consumption.uA (TYP.) Maximum Operating Voltage 6.V Output Voltage Range.8V to.6v Input Voltage Range.8V to 6V Highly Accurate ± % Operational Temperature Range - ~ 85 Ultra Small Packages SOT--L and SOT-89-L Low ESR Capacitor Ceramic Compatible DESCRIPTION The FT5xx series are precise, extra low power consumption, positive voltage regulators with a significantly small dropout voltage. Each device contains a current limiter circuit, a PMOS power transistor, a precision reference voltage and an error amplifier circuit. The FT5xx has been designed to be used with low capacitors and requires a minimum output capacitor of. uf. Standard output voltage versions are.8v,.v,.v,.6v. APPLLICATIONS Battery Powered Equipment Cellular Phones Digital Cameras, Video Cameras Portable AV Systems Communication Tools Portable Games TYPICAL APPLICATION CIRCUIT VOUT uf VIN GND uf RL Typical Application Circuit Page of 9 DS5-A

2 ABSOLUTE MAXIMUM RATINGS* Operating Ambient Temperature o C to 85 o C Storage Temperature o C to 5 o C Maximum Voltage V Output Current mA Power Dissipation mw ESD Protection HBM V MM V * Stresses exceed those listed under Absolute Maximum Ratings may cause permanent damage to the device. Functional operation of the device at conditions beyond those listed in the specification is not guaranteed. Prolonged exposure to extreme conditions may affect device reliability or functionality. PIN CONFIGURATION TERMINAL FUNCTION Pin Name VIN VOUT GND Pin Function Power Input Voltage Output Voltage Ground Page of 9 DS5-A

3 ORDERING INFORMATION FT5 DESIGNATOR SYMBOL OUTPUT VOLTAGE E.8V F.V G.V H.6V DESIGNATOR SYMBOL a b c PACKAGE TYPE SOT--LA SOT-89-LA SOT-89-LB MARKING RULE Represent Product Series SYMBOL PRODUCT SERIES FT5xx Represent output voltage and operating temperature range E represent the output voltage is.8v, operating temperature is C ~ 85C. 5 For internal reference. Page of 9 DS5-A

4 BLOCK DIAGRAM VIN Bandgap - Current Limiter + c VOUT Block Diagram GND ELECTRICAL CHARACTERISTICS Vin=Vout+V; Cin=.uF; Vout=.8V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Voltage Vout V Input Voltage Vin.8 6 V Maximum Output Current Imax Vin=Vout+V 5 ma Load Regulation Vout ma Iout ma 5 mv Dropout Voltage ** Vdrp Vdrp Iout= ma Iout= ma Supply Current Iq Vin=Vout+V. ua Line Regulation Output Voltage Temperature Characteristics Current Limiter ( Vin* Vout) ( Temp* Vout) Ishort Vout+.V Vout 6V - C Temp 85 C Vin=Vout+V, Vout=.8V 8 8 mv.. %/V ppm/c 7 ma Page of 9 DS5-A

5 Vin=Vout+V; Cin=.uF; Vout =.V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Voltage Vout.9..6 V Input Voltage Vin.8 6 V Maximum Output Current Imax Vin=Vout+V 5 ma Load Regulation Vout ma Iout ma 5 mv Dropout Voltage ** Vdrp Vdrp Iout= ma Iout= ma Supply Current Iq Vin=Vout+V. ua Line Regulation Output Voltage Temperature Characteristics Current Limiter ( Vin* Vout) ( Temp* Vout) Ishort Vout+.V Vout 6V - C Temp 85 C Vin=Vout+V, Vout=.V 6 7 mv.. %/V ppm/c 7 ma Vin=Vout+V; Cin=.uF; Vout =.V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Voltage Vout...66 V Input Voltage Vin.8 6 V Maximum Output Current Imax Vin=Vout+V 5 ma Load Regulation Vout ma Iout ma 5 mv Dropout Voltage ** Vdrp Vdrp Iout= ma Iout= ma Supply Current Iq Vin=Vout+V. ua Line Regulation Output Voltage Temperature Characteristics Current Limiter ( Vin* Vout) ( Temp* Vout) Ishort Vout+.V Vout 6V - C Temp 85 C Vin=Vout+V, Vout=.V 5 6 mv.. %/V ppm/c 7 ma Dropout voltage is defined as the input to output differential at which the output voltage drops % below its nominal value measured at V differential. Page 5 of 9 DS5-A

6 TYPICAL PERFORMANCE CHARACTERISTICS FT5F Vout=.V, Vin=.V, Cin=Co=uF, temp=7c unless otherwise noted. Output Voltage vs. Output Current. Output Voltage vs. Input Voltage.. Output Voltage (V)..9 temp=- temp=7 temp=85 Output Voltage(V)..9 Iout=mA Iout=mA Output Current(mA) Input Voltage (V). Supply Current vs. Input Voltage. Output Voltage vs. Temperature.5. Supply Current(uA).5.75 temp=-c temp=7c temp=85c Output Voltage(V) Iout=mA Iout=mA Iout=mA Input Voltage(V) Temp(C) 5. Input Transient Response () 6. Input Transient Response () Input Voltage(V) - Input voltage Output voltage Output votlage (V) Input Voltage(V) 5 Input voltage Output voltage.5.5 Output votlage (V) Time(.5msec/div) 5 Time(msec/div).5 Page 6 of 9 DS5-A

7 7. Load Transient Response 8. Current Limiting 5 Output current Output Current (ma) 6 8 Output voltage Output votlage (V) Output Voltage (V) vin= vin=5 vin=6 5 Time(msec/div) 5 Output Current(mA) 9. Power Supply Ripple Rejection Ripple Rejection Rate RR(dB) Ripple Frequency (KHz) Page 7 of 9 DS5-A

8 PACKAGING INFORMATION SOT--L Page 8 of 9 DS5-A

9 SOT-89-L Page 9 of 9 DS5-A

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