AP7333 - Diodes Incorporated

1 AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Features Description 300mA Low dropout Regulator in 3-pin package The AP7333 is a 300mA, fixed output voltage, low dropout linear Very low IQ over full load: 65 A regulator. The device included pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. Wide input voltage range: 2V to 6V. Fixed output options: to The characteristics of low dropout voltage and low quiescent PSRR: 65dB typical at 100Hz current make it suitable for low power applications, for example, Fast start-up time: 80 s battery powered devices.

2 The typical quiescent current is approximately 65 A. Stable with low ESR, 1 F ceramic output capacitor Excellent Load/Line Transient Response Built-in current-limit and thermal-shutdown functions prevent IC. Low dropout : 300mV typical at 300mA from damage in fault conditions. Current limit protection Short circuit protection The AP7333 is available in SOT23 packages with different pin-outs. Thermal shutdown protection Ambient temperature range: -40 C to 85 C. SOT23 and SOT23R: Available in Green Molding Compound (No Br, Sb). Lead Free Finish/RoHS Compliant (Note 1). Applications XDSL Router Wireless LAN Cards Desktop and Notebook Computers Battery Powered Equipments Mouse, Keyboards Typical Application Circuit VIN VOUT.

3 IN OUT. AP7333 . 1uF 1uF. GND. AP7333 Rev. 2 1 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Ordering Information AP7333 - XX XX G - 7. Output Package Green Packing 10 : SA : SOT23 G : Green 7 : Tape & Reel 12 : SR : SOT23R. 15 : 18 : 20 : 25 : 28 : 30 : 33 : Packaging 7 Tape and Reel Device Package Code (Note 2) Quantity Part Number Suffix AP7333 -XXSAG-7 SA SOT23 3000/Tape & Reel -7. AP7333 -XXSRG-7 SR SOT23R 3000/Tape & Reel -7. Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at 2.

4 Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at Pin Assignment (1) SOT23 (1) SOT23R. ( Top View ) ( Top View ). IN 1 GND 1. 3 GND 3 IN. OUT 2 OUT 2. AP7333 Rev. 2 2 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Pin Descriptions Pin Number Pin Name Description SOT23 SOT23R. Voltage input pin. Bypass to ground through at least 1 F. IN 1 3. capacitor Voltage output pin. Bypass to ground through 1 F ceramic OUT 2 2. capacitor GND 3 1 Ground Functional Block Diagram IN OUT.

5 C urre nt Lim it G ate and T herm a l D river S hutdow n R. V REF. R. GND. AP7333 Rev. 2 3 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Absolute Maximum Ratings Symbol Parameter Ratings Units ESD HBM Human Body Model ESD Protection 6 kV. ESD MM Machine Model ESD Protection 400 V. VIN Input Voltage 7 V. Continuous Load Current Internal Limited TOP Operating Junction Temperature Range -40 ~ 125 C. TST Storage Temperature Range -65 ~150 C. SOT23 600 mW. PD Power Dissipation (Note 3). SOT23R 540 mW. TJ Maximum Junction Temperature 150 C.

6 Recommended Operating Conditions Symbol Parameter Min Max Unit VIN Input voltage 2 6 V. IOUT Output Current (Note 4) 0 300 mA. TA Operating Ambient Temperature -40 85 C. Notes: 3. Ratings apply to ambient temperature at 25 C. 4. The device maintains a stable, regulated output voltage without a load current. AP7333 Rev. 2 4 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Electrical Characteristics o (TA = 25 C, VIN = VOUT +1V, CIN = 1uF, COUT = 1uF, unless otherwise stated). Symbol Parameter Test Conditions Min Typ. Max Unit IOUT = 0mA 55 75.

7 IQ Input Quiescent Current A. IOUT = 300mA 65 85. VDropout dropout Voltage (Note 5) IOUT = 300mA 300 550 mV. TA = -40oC to 85oC, VOUT Output Voltage Accuracy -2 2 %. IOUT = 30mA. VOUT VIN = (VOUT +1V) to VIN-Max, Line Regulation %/V. / VIN/V IOUT = 1mA. VOUT VIN = (VOUT +1V) to VIN-Max, Load Regulation %. /VOUT IOUT from 1mA to 300mA. VIN = 0V to , VOUT = 1V, tST Start-up Time 80 s IOUT = 300mA. VIN = [VOUT +1V]VDC + , PSRR PSRR 65 dB. f = 100Hz, IOUT = 30mA. VIN = VIN-Min to VIN-Max, ISHORT Short-circuit Current 100 mA. VOUT < ILIMIT Current Limit VOUT/ROUT = 1A 400 600 mA. TSHDN Thermal Shutdown Threshold 140 C.

8 THYS Thermal Shutdown Hysteresis 15 C. o SOT23 (Note 6) 207 C/W. JA Thermal Resistance Junction-to-Ambient o SOT23R (Note 6) 230 C/W. Notes: 5. dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. This parameter only applies to output voltages above 6. Test conditions for SOT23 and SOT23R: Device mounted on FR-4 substrate PCB, with minimum recommended pad layout, 2oz copper, single sided. AP7333 Rev. 2 5 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Typical Performance Characteristics Quiescent Current vs Input Voltage Line Regulation (% /V).

9 Iload=0mA. 60. Output Voltage Variation (%/V). Vout= 90 . 58 90 . Output Current (mA). 56. 54. 52. 25 -45 Vout= 25 -45 . 50. Vin=Vout +1V. 48 3 6 4 5 6. Input Voltage (V) Input Voltage (V). Load Regulation (% ) dropout Voltage 350. Vout= 90 . -45 300. Output Voltage Variation (%). dropout Voltage (mV). 250. 200. 0. 150. 100 25 -45 . 25 . Vout= 50. Vin=Vout +1V 90 . 0. 0 50 100 150 200 250 300. 0 50 100 150 200 250 300. Output Current (mA) Output Current (mA). Short Circuit vs Input Voltage Current Limit vs Input Voltage 105 600. Vout= Ta=25 . 100 -45 . Vout= Current Limit (mA). Output Current (mA).

10 550. 95. 90 500. 85. 450. 80. 25 90 . 400. 75. 4 5 6 4 5 6. Input Voltage (V). Input Voltage (V). AP7333 Rev. 2 6 of 12 NOVEMBER 2009. Diodes Incorporated AP7333 . 300mA, Low Quiescent Current, Fast Transient Low dropout Linear Regulator Typical Performance Characteristics (Continued). PSRR PSRR. 75 75. 70 70. Vout=1V Vout= 65 Vin=2V 65 Vin= Cin=Cout=1uF Cin=Cout=1uF. 60 Ta=25 60 Ta=25 . PSRR (dB). PSRR (dB). 55 55. 50 50. 45 45. 40 40. 35 35. 1 10 100 1 10 100. Frequency (kHz) Frequency (kHz). Line Transient Response Line Transient Response Vin=3V to 2V (1V/div). Vin=2V to 3V (1V/div) Tr=10us Tr=10us Vout=1V (50mV/div) Vout=1V (50mV/div).