AP131 Linear Regulator Datasheet

AP131 Datasheet, PDF, Equivalent


Part Number

AP131

Description

300mA Low Dropout Linear Regulator

Manufacture

Anachip

Total Page 7 Pages
Datasheet
Download AP131 Datasheet


AP131
300mA Low Dropout Linear Regulator with Shutdown
AP131
„ Features
- Input voltage range is up to 7V
- Dropout voltage 400mV at 300mA output current
- Guaranteed 300mA output current.
- Internal Ron =1.5PMOS draws no base current
- Low quiescent current 50µA
- Output voltage 2% accuracy, and 1.5V to 5V with
0.1V step
- Active low shutdown function (EN pin).
- Fast transient response
- Good load regulation
- Current limit and thermal shutdown protection
- SOT89-5L and SOT23-5L packages
„ Applications
- Wireless Communication
- Battery Powered device
- CD-ROM, DVD, and LAN Card
- PC peripheral
„ General Descriptions
The AP131 is a 300mA, fixed output voltage, low
dropout linear regulator. The Device included pass
element, error amplifier, band-gap, current limit and
thermal shutdown circuitry. The device is ON when
EN pin is set to logic high level.
The characteristics of low dropout voltage and less
quiescent current make it good for some critical
current application, for example, some battery
powered devices. The typical quiescent current is
approximately 50µA from zero to maximum load.
Due to internal flexible design, result in extensively
fixed output voltage versions and make it
convenient to use for applications. Built-in
current-limit and thermal-shutdown functions
prevent any fault condition from IC damage. An
external capacitor can be connected to the BP pin
and reduce the output noise.
„ Pin Assignments
(Top View)
EN
GND
IN
1
2
3
5 BP
4 OUT
SOT89-5L
(Top View)
IN
GND
EN
1
2
3
5 OUT
4 BP
SOT23-5L
„ Pin Descriptions
Name
IN
GND
EN
BP
OUT
Description
Input voltage
Ground
Enable pin
Bandgap
Output voltage
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 1.2 Oct 28, 2004
1/7

AP131
300mA Low Dropout Linear Regulator with Shutdown
AP131
„ Ordering Information
AP131 XX X X X
Output voltage
15: 1.5V
25: 2.5V
50: 5.0V
Package
Y : SOT89-5L
W: SOT23-5L
Lead Free
Blank : Normal
L : Lead Free Package
Packing
Blank:Tube
A : Taping
„ Block Diagram
IN
CLuirmreint t
EN Enable
SThhuetdrmowaln
Error
Amp
-+
Bandgap 1.08V
BP
„ Absolute Maximum Ratings
Symbol
VCC
TOP
TST
PD
ΘJA
Parameter
Input voltage
Operating junction temperature range
Storage temperature range
Power dissipation, PD @TA=25ºC
SOT89-5L
SOT23-5L
Package thermal resistance
SOT89-5L
SOT23-5L
OUT
GND
Rating
-0.1 to +7
-40 to +125
-65 to +150
+0.5
+0.25
+100
+250
Unit
V
ºC
ºC
W
W
ºC/W
ºC/W
Anachip Corp.
www.anachip.com.tw
Rev. 1.2 Oct 28, 2004
2/7


Features 300mA Low Dropout Linear Regulator with Shutdown AP131 „ Features - Input vo ltage range is up to 7V - Dropout volta ge 400mV at 300mA output current - Guar anteed 300mA output current. - Internal Ron =1.5Ω PMOS draws no base current - Low quiescent current 50µA - Output voltage 2% accuracy, and 1.5V to 5V wi th 0.1V step - Active low shutdown func tion (EN pin). - Fast transient respons e - Good load regulation - Current limi t and thermal shutdown protection - SOT 89-5L and SOT23-5L packages „ Applicat ions - Wireless Communication - Battery Powered device - CD-ROM, DVD, and LAN Card - PC peripheral „ General Descri ptions The AP131 is a 300mA, fixed outp ut voltage, low dropout linear regulato r. The Device included pass element, er ror amplifier, band-gap, current limit and thermal shutdown circuitry. The dev ice is ON when EN pin is set to logic h igh level. The characteristics of low d ropout voltage and less quiescent curre nt make it good for some critical current application, for example, s.
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