Datasheet > TPP302083

TPP302083

更新时间： 2024-04-09 18:58:17

品牌	Logo	应用领域
思瑞浦 - 3PEAK		/
页数	文件大小	规格书
22页	1725K
描述
30-V Input, 2-A Synchronous Step-Down Voltage Regulator

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TPP302083 数据手册

TPP30208x

30-V Input, 2-A Synchronous Step-Down Voltage Regulator

Electrical Characteristics

All test condition is at V_IN= 12 V, T_A= −40°C to +125°C, unless otherwise noted.

Parameter

Conditions

Min

Typ

Max

Unit

Power Supply

V_IN

Supply Voltage Range

4.5

Non-switching, EN = 5 V,

V_FB= 1 V

I_Q

Operating Supply Current

μA

I_QSD

Shut Down Supply Current

UVLO Rising Threshold

UVLO Falling Threshold

EN = GND

μA

V_{UVLO_rising}

V_{UVLO_falling}

Enable

V_ENH

3.9

3.7

4.3

3.9

4.5

4.1

EN Input Rising Threshold

EN Input Falling Threshold

1.28

1.17

1.35

612

590

V_ENL

Feedback and Power Stage

V_FB

V_FBFeedback Voltage

588

600

180

mΩ

kHz

MHz

R_{ds(on)_HSD}

R_{ds(on)_LSD}

High-side FET On-Resistance

Low-side FET On-Resistance

I_SW= 1 A

TPP302080/2

TPP302081/3

390

500

2.2

f_SW

Switching Frequency

t_ss

Soft-Start Time

Pulse-Skip Mode Peak Inductor

Current Threshold

V_IN= 12 V, V_OUT= 5 V, L =

15 μH

I_skip

300

Current Limit

I_{Limit_HS}

Highside Current Limit

Inductor peak current

Inductor valley current

2.5

3.2

2.5

0.9

3.9

I_{Limit_LS}

Lowside Current Limit

I_{Limit_LS_neg}

Negative Low-side Current Limit

Diagnostics and Protection

V_{FB_UVP_rising}FB Hiccup Protection Rising Ratio

V_{FB_UVP_falling}FB Hiccup Protection Falling Ratio

FB Over-Voltage Protection Rising

V_{FB_OVP_rising}

Ratio

108

107

FB Over-Voltage Protection Falling

V_{FB_OVP_falling}

Ratio

t_{HIC_wait}

Hiccup Protection Wait Time

128

Cycles

t_{HIC_restart}

Hiccup Protection Restart Time

Thermal Shutdown

T_SD

Thermal Shut Down Temperature

Thermal Hysteresis

160

°C

T_{SD_hys}

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