SD6210A SHOUDING | Alldatasheet

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(1.20MHz) switched capacitor voltage doubler. It 2 .8V to 5V input with up to 250mA of output Fixed 5V±3% Output 5V VIN Range: 2.8V prevents excessive inrush current during The SD6210A is available in the 6-pin SOT-23 SD6210A have thermal sh VIN and VOUT)make the SD6210A ideally produces a regulated output voltage from The SD6210A is a low noise, constant frequency SD6210AShouding FFeeaattuurreess Output Current: up to 250mA (V IN =4.5V) Low Noise Constant Frequency Operation Shutdown Current: <1 μA Short-Circuit Protection Soft-start No Inductors Available in Low Profile 6-Lead SOT-23 Package AApppplliiccaattiioonnss White LED Backlighting Li-Ion Battery Backup Supplies Local 3V to 5V Conversion Smart Card Readers PCMCIA Local 5V Supplies DDeessccrriippttiioonn current. Low external parts count (one flying capacitor and two small bypass capacitors at suited for small, battery-powered applications. The new charge-pump architecture maintains constant switching frequency to no load and reduces both output a nd input ripple. The utdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry start-up. package. LLooww NNooiissee RRee g g uullaatteedd CChhaa r r g g ee PPuumm p p DDCC//DDCC CCoonnvvee r r ttee r r 10A45SD6210A SOT23-6L Marking PPiinn AAssssiiggnnmmeenntt aanndd DDeessccrriippttiioonn PIN NAME

DESCRIPTION

1 VOUT Output

2 GND Ground

3 EN ON/OFF Control (High Enable)

4 C- Flying Capacitor Negative Terminal.

5 VIN Input

6 C+ Flying Capacitor Positive Terminal. (Marking) Part Number Product Code www.shouding.net

= 2.8V, I = 2.8V 1.8 = 100mA 1.20 MHz Input Voltage Range 2.8 5 V EElleeccttrriiccaall CChhaarraacctteerriissttiiccss Operating Conditions: TA = 25℃, V IN = 3.6V, V EN = V IN , C IN = C OUT = 10μF, unless otherwise noted. SYMBOL PARAMETER CCOONNDDIITTIIOONNSS MIN TYP MAX UNITS V IN V OUT Output Voltage Range 4.8 5 5.2 V I SHDN Shutdown Current V EN = 0V, V OUT = 0V 0.2 μA I NO LOAD No load input current I OUT = 0mA, V IN mA EFFI Efficiency V IN OUT = 80mA 83 % f OSC Switching Frequency V IN = 3.2V, I OUT BBlloocckk DDiiaaggrraamm SD6210AShouding www.shouding.net

TTyyppiiccaall PPeerrffoorrmmaannccee CChhaarraacctteerriissttiiccss Output Voltage vs. Supply Voltage 4.5 4.6 4.7 4.8 4.9 5.1 5.2 5.3 5.4 5.5 Supply Voltage (V) Output Voltage (V) Oscillator Frequency vs.Supply Voltage 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 Supply Voltage (V) Oscillator Frequency (MHz) No Load Supply Current vs. Supply Voltage 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Supply Voltage (V) Supply Current (mA) Short Circuit Current vs. Supply Voltage 100 150 200 250 300 350 Supply Voltage (V) Short Circuit Current (mA) SD6210AShouding www.shouding.net

Output voltage(V) Load Current (mA) Load Current vs. Output Voltage V IN =4.2V V IN =3.6V V IN =3.3V V IN =3V V IN =4.5V PPiinn FFuunnccttiioonnss VOUT (Pin 1): Regulated Output Voltage. VOUT should be bypassed with a low ESR ceramic capacitor providing at least 10μF of capacitance as close to the pin as possible for best performance. GND (Pin 2): Ground. These pins should be tied to a ground plane for best performance. The exposed pad must be soldered to PCB ground to provide electrical contact and optimum thermal performance. EN (Pin 3): Active Low Shutdown Input. This pin must not be allowed to float. C- (Pin 4): Flying Capacitor Negative Terminal. VIN (Pin 5): Input Supply Voltage. VIN should be bypassed with a low ESR ceramic capacitor providing at least 10μF of capacitance as close to the pin as possible for best performance. C+ (Pin 6): Flying Capacitor Positive Terminal. SD6210A is in shutdown when a logic the SD6210A draw only leakage The SD6210A use a switched capac AApppplliiccaattiioonn IInnffoorrmmaattiioonn Operation itor charge pump to boost VIN to a regulated output voltage. Regulation is achieved by sensing the output voltage through an internal resistor divider and modulating the charge pump output current based on the error signal. A 2-phase nonoverlapping clock activates the charge pump switches. The flying capac itor is charged from VIN on the first phase of the clock. On the second phase of the clock it is stacked in series with VIN and connected to VOUT. This sequence of charging and discharging the flying capacitor continues at a free running frequency of 1.2MHz (typ). In shutdown mode all circuitry is turned off and current from the VIN supply. Furthermore, VOUT is disc onnected from VIN. The EN pin is a CMOS input with a threshold voltage of approximately 0.8V. The low is applied to the EN pin. Since the EN pin is high impedance CM OS input it should never be allowe d to float. To ensure that its state is defined it must always be driven with a valid logic level. SD6210AShouding www.shouding.net

PPaacckkaaggiinngg IInnffoorrmmaattiioonn Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950(BSC) 0.037(BSC) e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° SD6210AShouding www.shouding.net