ADP2118ACPZ-1.8-R7

更新时间： 2024-02-22 21:35:00

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
24页	1228K
描述
3 A, 1.2 MHz/600 kHz High Efficiency Synchronous Step-Down DC-to-DC Converter

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ADP2118ACPZ-1.8-R7 数据手册

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ADP2118

SPECIFICATIONS

VIN = PVIN = 3.3 V, EN = VIN, SYNC/MODE = high @ T_J= −40°C to +125°C, unless otherwise noted. Typical values are at T_J= 25^oC.

Table 1.

Parameter

Symbol Test Conditions/Comments

Min

Typ

Max

Unit

VIN AND PVIN

VIN Voltage Range

PVIN Voltage Range

Quiescent Current

VIN

PVIN

I_VIN

2.3

5.5

150

900

μA

No switching, SYNC/MODE = GND

Switching, no load, SYNC/MODE = high

VIN = PVIN = 5.5 V, EN = GND

VIN rising

100

680

0.3

Shutdown Current

VIN Undervoltage Lockout Threshold UVLO

I_SHDN

2.2

2.3

VIN falling

2.1

OUTPUT CHARACTERISTICS

Load Regulation¹

Line Regulation¹

I_o= 0 A to 3 A

I_o= 1.5 A

0.08

0.05

%/A

%/V

FB Regulation Voltage

FB Bias Current

V_FB

I_FB

VIN = 2.3 V to 5.5 V

0.591 0.6

0.01

0.609

0.1

μA

High-Side On Resistance²

Low-Side On Resistance²

SW Peak Current Limit

SW Maximum Duty Cycle

SW Minimum On Time³

VIN = PVIN = 3.3 V, I_SW= 500 mA

High-side switch, VIN = PVIN = 3.3 V

VIN = PVIN = 5.5 V, full frequency

5.2

110

6.4

100

mΩ

100

TRK

TRK Input Voltage Range

TRK to FB Offset Voltage

TRK Input Bias Current

FREQUENCY

−10

600

+10

100

TRK = 0 mV to 500 mV

Oscillator Frequency

FREQ = VIN

FREQ = GND

1.0

500

1.2

600

1.4

700

MHz

kHz

FREQ Input High Voltage

FREQ Input Low Voltage

SYNC/MODE

Synchronization Range

SYNC Minimum Pulse Width

SYNC Minimum Off Time

SYNC Input High Voltage

SYNC Input Low Voltage

INTEGRATED SOFT START

Soft Start Time

0.4

1.4

0.6

MHz

100

1.2

0.4

All switching frequency

2048

Clock cycles

PGOOD

Power Good Range

FB rising threshold

FB rising hysteresis

FB falling threshold

FB falling hysteresis

From FB to PGOOD

V_PGOOD= 5 V

105

110

2.5

115

Power Good Deglitch Time

PGOOD Leakage Current

PGOOD Output Low Voltage

Clock cycles

μA

0.1

140

200

I_PGOOD= 1 mA

Rev. 0 | Page 3 of 24

1 234 5 6 7...24

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