Datasheet > ADP2139CB-1.2EVALZ

ADP2139CB-1.2EVALZ

更新时间： 2022-02-26 09:02:56

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	544K
描述
Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter

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Data Sheet

ADP2138/ADP2139

SPECIFICATIONS

V_IN= 3.6 V, V _OUT= 0.8 V − 3.3 V, T_J= −40°C to +125°C for minimum/maximum specifications, and T_A= 25°C for typical specifications,

unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

Table 1.

Parameter

Test Conditions/Comments

Min

2.3

Typ

Max

Unit

INPUT CHARACTERISTICS

Input Voltage Range

Undervoltage Lockout Threshold

5.5

V_INrising

V_INfalling

2.3

2.00

−2

2.15

2.25

OUTPUT CHARACTERISTICS

Output Voltage Accuracy

Line Regulation

PWM mode

V_IN= 2.3 V to 5.5 V, PWM mode

I_LOAD= 0 mA − 800 mA

0.25

−0.95

100

%/V

%/A

Load Regulation

PWM TO POWER SAVE MODE CURRENT THRESHOLD

INPUT CURRENT CHARACTERISTICS

DC Operating Current

I_LOAD= 0 mA, device not switching

EN = 0 V, T_A= T_J= −40°C to +85°C

μA

Shutdown Current

0.2

1.0

SW CHARACTERISTICS

SW On Resistance

PFET

155

115

1500

100

240

mΩ

NFET

200

Current Limit

PFET switch peak current limit

1100

1.2

1650

Discharge Switch (ADP2139)

ENABLE AND MODE CHARACTERISTICS

Input High Threshold

Input Low Threshold

0.4

3.4

Input Leakage Current

EN/MODE = 0 V (min), 3.6 V (max )

−1

μA

MHz

μs

OSCILLATOR FREQUENCY

START-UP TIME

2.6

3.0

250

THERMAL CHARACTERISTICS

Thermal Shutdown Threshold

Thermal Shutdown Hysteresis

150

°C

INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS

T_A= −40°C to +125°C, unless otherwise specified. All limits at temperature extremes are guaranteed via correlation using standard

statistical quality control (SQC).

Table 2.

Parameter

Symbol

C_MIN

Min

4.7

Typ

Max

Unit

MINIMUM INPUT AND OUTPUT CAPACITANCE

CAPACITOR ESR

µF

R_ESR

0.001

Rev. C | Page 3 of 20

1 234 5 6 7...20

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