Datasheet > MP38875

MP38875

更新时间： 2024-04-09 19:01:19

品牌	Logo	应用领域
芯源 - MPS		栅驱动驱动器
页数	文件大小	规格书
14页	589K
描述
15A, 16V, 800kHz 降压变换器，具有同步栅级驱动器

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数据手册

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MP38875 数据手册

MP38875 – 15A, 16V, 800kHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER

PACKAGE REFERENCE

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

Supply Voltage V_IN....................................... 18V

V_SW.......................–0.3V (-5V for < 10ns) to 19V

V_BS....................................................... V_SW+ 6V

All Other Pins.................................–0.3V to +6V

Junction Temperature...............................150°C

Lead Temperature....................................260°C

Storage Temperature ..............–65°C to +150°C

Recommended Operating Conditions ⁽²⁾

Supply Voltage V_IN........................... 4.5V to 16V

Output Voltage V_OUT................... 0.8V to V_IN-4V

Operating Temperature .............–40°C to +85°C

TOP VIEW

PIN 1 ID

GNDGATE VIN

VCC

SYNCOUT

SYNCIN

VIN

14 SW

SS/TRK

COMP

Thermal Resistance ⁽³⁾

θ_JA

θ_JC

QFN (3mm x 4mm).................48...... 11... °C/W

PG BST VIN

Notes:

Part Number*

MP38875DL

Package

1) Exceeding these ratings may damage the device.

2) The device is not guaranteed to function outside of its

operating conditions.

3mm x 4mm QFN

Top Marking

3887

Temperature

–40°C to +85°C

3) Measured on JESD51-7 4-layer board.

For Tape & Reel, add suffix –Z (e.g. MP38875DL–Z)

For RoHS compliant packaging, add suffix –LF

(e.g. MP38875DL–LF–Z)

ELECTRICAL CHARACTERISTICS

V_IN= 12V, T_A= +25°C, unless otherwise noted.

Parameters

Symbol Condition

Min

Typ

Max

Units

Feedback Voltage

V_FB

I_FB

0.794 0.810 0.826

4.5V ≤ V_IN≤ 16V

Feedback Current

Switch On Resistance ⁽⁴⁾

V_FB= 0.8V

mΩ

µA

R_DS(ON)

Switch Leakage

Current Limit ⁽⁴⁾

V_EN= 0V, V_SW= 0V

0.1

Oscillator Frequency

f_SW

V_FB= 0.6V, SYNC_IN= 0V

V_FB= 0V

800

200

KHz

Fold-back Frequency

Maximum Duty Cycle

Minimum On Time⁽⁴⁾

V_FB= 0.6V

t_ON

I_SS

100

Soft-Start Charging Current

Maximum COMP Level

Gain of Error Amplifier

Error Amplifier Sink Current

Error Amplifier Source Current

Power Good Ramp Up Threshold

Power Good Ramp Down Threshold

V_SS= 0V

µA

V_{COMP_MAX}V_FB= 0.6V

4.4

G_EA

V_COMP= 1.5V

mA/V

µA

–270

+270

MP38875 Rev. 0.9

11/20/2009

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

123 4 5 6 7...14

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