Datasheet > AMS2905-2.85

AMS2905-2.85

更新时间： 2025-07-17 04:32:35

品牌	Logo	应用领域
ADMOS		稳压器调节器输出元件
页数	文件大小	规格书
8页	67K
描述
500mA LOW DROPOUT VOLTAGE REGULATOR

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AMS2905-2.85 数据手册

AMS2905

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at I_OUT= 0 mA, and T_J= +25°C unless otherwise specified.

Parameter

Device

Conditions

Min

Typ

Max

Units

Load Regulation

(Notes 2, 3)

AMS2905-2.85

V_IN= 5V, 0 ≤ I_OUT≤ 500mA

AMS2905-3.3

AMS2905-5.0

V_IN= 5V, 0 ≤ I_OUT≤ 500mA

V_IN= 8V, 0 ≤ I_OUT≤ 500mA

Dropout Voltage

AMS2905-1.5/-1.8/-2.5/-

2.85/-3.3/-5.0

1.1

1.3

∆V_OUT, ∆V_REF= 1%, I_OUT= 500mA (Note 4)

(V_IN- V

)

OUT

Current Limit

AMS2905-1.5/-1.8/-2.5/-

2.85/-3.3/-5.0

(V_IN- V_OUT) = 5V

1,000

Minimum Load

Current

AMS2905

(V_IN- V_OUT) = 12V (Note 5)

Quiescent Current

AMS2905-1.5/-1.8/-2.5/-

2.85/-3.3/-5.0

V_IN≤ 12V

Ripple Rejection

AMS2905

f =120Hz , C_OUT= 25µF Tantalum, I_OUT= 500mA,

(V_IN-V_OUT) = 3V, C_ADJ=25µF

AMS2905-1.5/-1.8/-2.5/-

2.85

f =120Hz , C_OUT= 25µF Tantalum, I_OUT= 500mA,

V_IN= 6V

AMS2905-3.3

f =120Hz , C_OUT= 25µF Tantalum, I_OUT= 500mA

V_IN= 6.3V

AMS2905-5.0

f =120Hz , C_OUT= 25µF Tantalum, I_OUT= 500mA

V_IN= 8V

Thermal Regulation

Adjust Pin Current

AMS2905

T_A= 25°C, 30ms pulse

0.008

0.04

10mA ≤ I_OUT≤ 500mA , 1.5V≤ (V_IN- V_OUT) ≤ 12V

µA

120

Adjust Pin Current

Change

AMS2905

0.2

10mA ≤ I_OUT≤ 500mA , 1.5V≤ (V_IN- V_OUT) ≤ 12V

µA

Temperature Stability

Long Term Stability

RMS Output Noise

0.5

0.3

T_A=125°C, 1000Hrs

0.003

T_A= 25°C , 10Hz ≤ f ≤ 10kHz

(% of V_OUT

)

Thermal Resistance

Junction-to-Case

°C/W

Parameters identified with boldface type apply over the full operating temperature range.

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the

Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed.

Note 2: Line and Load regulation are guaranteed up to the maximum power dissipation of 1.2W for SOT-223 package and 0.9W for SOT-89 package. Power

dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full

input/output range.

Note 3: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction

temperature by low duty cycle pulse testing. Load regulation is measured at the output lead ~1/8” from the package.

Note 4: Dropout voltage is specified over the full output current range of the device.

Note 5: Minimum load current is defined as the minimum output current required to maintain regulation. When 1.5V ≤ (V_IN- V_OUT) ≤ 12V the device is

guaranteed to regulate if the output current is greater than 10mA.

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

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