Datasheet > AAT1161

AAT1161

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
18页	1390K
描述
13.2V Input, 3A Step-Down Converter

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AAT1161 数据手册

PRODUCT DATASHEET

AAT1161

SwitchReg

13.2V Input, 3A Step-Down Converter

Electrical Characteristics

4.0V < V_IN< 13.2V. C_IN= 22µF, C_OUT= 66µF; L= 2.2µH or 3.8µH, T_A= -40 to +85°C unless otherwise noted. Typical val-

ues are at T_A= 25°C.

Symbol Description

Conditions

Min

Typ

Max

Units

V_IN

Input Voltage Range

4.0

13.2

4.0

Rising

V_UVLO

Input Under-Voltage Lockout

Hysteresis

No Load

V_EN= GND

0.3

150

I_Q

I_SHDN

Supply Current

Shutdown Current

300

µA

0.94

V_IN

2.5

V_OUT

Output Voltage Range

Output Voltage Accuracy

Line Regulation

0.6

V_OUT

∆V_LINEREG

∆V_IN

I_OUT= 0A to 3A

-2.5

V_IN= 4.5V to 13.2V

0.023

0.4

%/V

∆V_LOADREG

Load Regulation

Feedback Reference Voltage (adjustable

version)

V_IN= 12V, V_OUT= 5V, I_OUT= 0A to 3A

No Load, T_A= 25°C

V_FB

0.59

0.6

0.60

0.61

0.2

Adjustable Version

V_OUT= 1.2V

I_FBLEAK

FB Leakage Current

µA

Fixed Version

0.8

F_OSC

T_S

Oscillator Frequency

Start-Up Time

Foldback Frequency

Maximum Duty Cycle

Minimum Turn-On Time

Soft-Start Time

MHz

kHz

I_OUT= 3A, V_OUT= 5V

200

T_ON

T_SS

100

V_IN= 12V

V_IN= 6V

V_IN= 12V, V_OUT= 5V, I_OUT= 3A

0.12

0.15

R_DS(ON)H

P-Channel On Resistance

Ω

I_LIM

Efﬁciency

PMOS Current Limit

4.0

6.0

I_LXLEAK

T_SD

T_HYS

V_ILEN

V_IHEN

I_EN

LX Leakage Current

V_IN= 13.2V, V_LX= 0 to V_IN

µA

°C

µA

Over-Temperature Shutdown Threshold

Over-Temperature Shutdown Hysteresis

EN Logic Low Input Threshold

EN Logic High Input Threshold

EN Input Current

140

0.4

1.0

1.4

-1.0

V_EN= 0V, V_EN= 13.2V

1. The AAT1161 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-

tion with statistical process controls.

w w w . a n a l o g i c t e c h . c o m

1161.2008.03.1.0

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