ADP1877ACPZ-R7 datasheet(5/32 Pages) AD

部件名	ADP1877ACPZ-R7

功能描述	Dual Output Synchronous Buck PWM Controller With Tracking

PDF	32 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

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5 / 32 page

ADP1877

Rev. 0 | Page 5 of 32

Parameter

Symbol

Conditions

Min

Typ

Max

Units

PGOOD

PGOOD Pull-up Resistor

RPGOOD

Internal pull-up resistor to VCCO

12.5

kΩ

PGOOD Delay

μs

Overvoltage or Undervoltage

This is the minimum duration required to trip

the PGOOD signal.

μs

Minimum Duration

ILIM1, ILIM2 Threshold Voltage1

Relative to PGND

−5

ILIM1, ILIM2 Output Current

ILIM = PGND

μA

Current Sense Blanking Period

After DL goes high, current limit is not sensed

during this period.

100

INTEGRATED RECTIFIER

(BOOST DIODE) RESISTANCE

At 20 mA forward current

ZERO CURRENT CROSS OFFSET

(SW TO PGND)1

In pulse skip mode only; fOSC = 600 kHz

1 Guaranteed by design.

2 Connect VIN to VCCO when VIN < 5.5 V. For applications with VIN < 5.5 V and VIN not connected to VCCO, keep in mind that VCCO = VIN − VDROPOUT. VCCO must be ≥

2.75 V for proper operation.

ADP1877ACPZ-R7 数据表(PDF) 5 Page - Analog Devices

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