ADP2139 datasheet(10/16 Pages) AD

部件名	ADP2139

功能描述	Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter

PDF	16 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

10 / 16 page

ADP2138/ADP2139

Rev. 0 | Page 10 of 16

CH1 1.00V Ω

CH4 5.00V

CH2 500mA Ω

M 40.0µs

A CH3

2.50V

T 10.40%

CH3 5.00V

VOUT

IIN

Figure 27. Startup, VOUT = 0.8 V, IOUT = 10 mA

CH1 5.00V Ω

CH4 5.00V

CH2 500mA Ω

M 40.0µs

A CH3

2.50V

T 10.40%

CH3 5.00V

VOUT

IIN

Figure 28. Startup, VOUT = 0.8 V, IOUT = 10 mA

A CH1

3.80mV

M 1.00µs

T 50.00%

CH1 10.0mVΩ

CH4 2.00V

CH2 500mA Ω

VOUT

Figure 29. Typical Waveform, VOUT = 1.8 V, PSM Mode, IOUT = 10 mA

A CH4

1.32V

M 40.0µs

T 50.00%

CH1 10.0mVΩ

CH2 500mA Ω

CH4 2.00V

VOUT

Figure 30. Typical Waveform, VOUT = 1.8 V, PWM Mode, IOUT = 200 mA

CH1 100mV

CH4 2.00V

M 40.0µs

A CH3

1.36V

T 29.60%

CH3 2.00V

MODE

VOUT

Figure 31. Mode Transition from PSM to PWM to PSM, VOUT = 1.8 V

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