Datasheet > MPQ4560-AEC1

MPQ4560-AEC1

更新时间： 2024-04-09 19:03:22

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
21页	1107K
描述
2A，2MHz，55V降压变换器

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数据手册

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MPQ4560-AEC1 数据手册

MPQ4560 – 2A, 2MHz, 55V, STEP-DOWN CONVERTER

ELECTRICAL CHARACTERISTICS

V_IN= 12V, V_EN= 2.5V, V_COMP= 1.4V, T_J= –40°C to +125°C, unless otherwise noted. Typical Values

are at T_J=25°C.

Parameter

Symbol Condition

Min

Typ

Max Units

T_J=25°C

0.780 0.797 0.820

4.5V < V_IN<

55V

Feedback Voltage

V_FB

−40°C ≤ T_J≤85°C

−40°C ≤ T_J≤125°C

0.772

0.766

0.829

1.0

Feedback Leakage Current

Upper Switch On Resistance ⁽⁵⁾

Upper Switch Leakage

Current Limit

I_FB

0.1

μA

mΩ

μA

T_J=25°C

175

160

250

330

V_BST– V_SW

R_DS(ON)

I_SW

400

V_EN= 0V, V_SW= 0V

T_J=25°C

2.6

2.2

3.2

4.5

4.7

I_LIM

Duty Cycle ≤ 60%

COMP to Current Sense

Transconductance ⁽⁵⁾

G_CS

5.7

A/V

Error Amp Voltage Gain ⁽⁶⁾

Error Amp Transconductance

Error Amp Min Source current

Error Amp Min Sink current

400

120

V/V

µA/V

µA

I_COMP= ±3µA

V_FB= 0.7V

V_FB= 0.9V

T_J=25°C

−10

3.0

µA

2.7

2.4

3.3

3.6

VIN UVLO Threshold

VIN UVLO Hysteresis

Soft-Start Time ⁽⁵⁾

0.35

0.5

0V < V_FB< 0.8V

0.19

0.8

T_J=25°C

1.2

1.3

MHz

R_FREQ

Oscillator Frequency

f_SW

95kΩ

0.7

Shutdown Supply Current

Quiescent Supply Current

Thermal Shutdown ⁽⁵⁾

Minimum Off Time ⁽⁵⁾

Minimum On Time ⁽⁵⁾

I_S

V_EN< 0.3V

µA

°C

I_Q

No load, V_FB= 0.9V (no switching)

Hysteresis = 20°C

140

150

100

1.55

200

t_OFF

t_ON

T_J=25°C

1.4

1.3

1.7

1.8

EN Rising Threshold

EN Threshold Hysteresis

320

Note:

5) Derived from bench characterization. Not tested in production.

6) Guaranteed by design. Not tested in production.

MPQ4560 Rev. 1.1

5/24/2016

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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