Datasheet > RS1509P-3.3

RS1509P-3.3

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ORISTER		转换器
页数	文件大小	规格书
8页	205K
描述
150KHz, 2A PWM Buck DC/DC Converter

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数据手册

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RS1509P-3.3 数据手册

Page No. : 3/3

All Output Voltage Versions Electrical Characteristics

Specifications with boldface type apply over for full operating temperature range, the other type are for T_J=25^oC

(Unless otherwise specified, V_IN=12V for the 3.3V, 5V, and adjustable version and V_IN=18V for the 12V version, I_LOAD=500mA)

Parameter

Device Parameters

Symbol

Test Condition

Min.

Typ.

Max.

Unit

-50

-100

Feedback Bias Current

Oscillator Frequency

Saturation Voltage

I_b

f_O

Adjustable Version Only, V_FB=1.3V

-10

150

1.3

KHz

120

110

173

(Note 5)

1.4

1.5

V_SAT

I_OUT=2A ^{(Note 6,7)}

(Note 7)

(Note 8)

Max. Duty Cycle (ON)

Min. Duty Cycle (OFF)

100

Current Limit

I_CL

I_L

Peak Current ^{(Note 6,7)}

Output=0V ^{(Note 6,8)}

2.1

2.5

Output Leakage Current

Quiescent Current

-50

(Note 8)

I_Q

250

300

Standby Quiescent Current

I_STBY

ON/OFF pin=5V ^{(Note 9)}

150

DIP-8

SOP-8

DIP-8

SOP-8

Junction to

Case

^oC/W

θ_JC

Thermal Resistance

Junction to

ambient

^oC/W

(Note 10)

θ_JA

ON/OFF Control

V_IH

Low (Regulator ON)

0.6

ON/OFF Pin Logic Input Threshold

Voltage

1.3

V_IL

I_IH

I_IL

High (Regulator OFF)

2.0

V_LOGIC=2.5V (Regulator OFF)

V_LOGIC=0.5V (Regulator ON)

-5

-15

-5

ON/OFF Pin Input Current

-0.02

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which

the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions,

see the Electrical Characteristics.

Note 2: External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect

switching regulator system performance.

Note 3: Typical numbers are at 25^oC and represent the most likely norm.

Note 4: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits

are 100% production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control

(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

Note 5: The switching frequency is reduced when the second stage current limit is activated.

Note 6: No diode, inductor or capacitor connected to output pin.

Note 7: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.

Note 8: Feedback pin removed from output and connected to 12V for the 3.3V, 5V, ADJ. version, and 15V for the 12V version, to force the output

transistor switch OFF.

Note 9: V_IN=40V.

Note 10: Junction to ambient thermal resistance. (With copper area of approximately 3in²)

DS-RS1509-04 Oct, 2007

www.Orister.com

1 234 5 6 7 8

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