ADP5075ACBZ-R7 datasheet(9/19 Pages) AD

9 / 19 page

Data Sheet

ADP5075

Rev. B | Page 9 of 19

VIN (V)

TA = –40°C

TA = +25°C

TA = +125°C

1.13

1.27

1.25

1.23

1.21

1.19

1.17

1.15

Figure 15. Oscillator Frequency vs. Input Voltage (VIN) for Various

Temperatures, SYNC/FREQ Pin = Low

VIN (V)

TA = –40°C

TA = +25°C

TA = +125°C

Figure 16. Shutdown Quiescent Current vs. Input Voltage (VIN) for Various

Temperatures, EN Pin Below Shutdown Threshold

0.5

1.0

1.5

2.0

2.5

VIN (V)

–40°C

+25°C

+125°C

Figure 17. Operating Quiescent Current vs. Input Voltage (VIN) for Various

Temperatures, EN Pin On

CH1 1.00V BW

VOUT

CH2 10.0mV BW

CH3 100mV BW

4.00ms

CH1

5.06V

12.4800ms

VIN

VFB

Figure 18. Line Transient Showing VIN, VOUT, and VFB, VIN = 4.5 V to 5.5 V Step,

VNEG = −12 V, RLOAD = 300 Ω, fSW = 1.2 MHz, TA = 25°C

CH2 10.0mV BW

CH3 50.0mV BW CH4 10.0mA BW

4.00ms

CH4

41.2mA

11.9600ms

VOUT

ILOAD

VFB

Figure 19. Load Transient Showing ILOAD, VOUT, and VFB, VIN = 5 V, VNEG = −12 V,

ILOAD = 35 mA to 45 mA Step, fSW = 1.2 MHz, TA = 25°C

CH2 5.00V BW

CH3 20.0mV BW CH4 50.0mA BW

4.00µs

CH2

3.10V

401.600µs

IINDUCTOR

VNEG

Figure 20. Skip Mode Operation Showing Inductor Current (IINDUCTOR), Switch

Node Voltage, and Output Ripple, VIN = 5 V, VNEG = −5 V, ILOAD = 0.5 mA,

fSW = 1.2 MHz, TA = 25°C

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