900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






AXElite

AX3513A Datasheet Preview

AX3513A Datasheet

1A Synchronous Step-Down Converter

No Preview Available !

AX3513A
1.4MHz, 1A Synchronous Step-Down
Converter
GENERAL DESCRIPTION
AX3513A is a high efficiency monolithic synchronous buck regulator using a constant
frequency, current mode architecture. The device is available in an adjustable version.
Supply current with no load is 250uA and drops to <1uA in shutdown. The 2.5V to 5.5V input
voltage range makes AX3513A ideally suited for single Li-Ion, two to three AA
battery-powered applications. 100% duty cycle provides low dropout operation, extending
battery life in portable systems. PWM operation provides very low output ripple voltage for
noise sensitive applications. Switching frequency is internally set at 1.4MHz, allowing the
use of small surface mount inductors and capacitors. The internal synchronous switch
increases efficiency and decreases need of an external schottky diode. Low output voltages
are easily supported with the 0.6V feedback reference voltage. AX3513A is available in
small TSOT23-5L and TDFN-6L packages.
FEATURES
- 2.5V to 5.5V Input Voltage Range
- Output Voltage from 0.6V to VIN
- High Efficiency: Up to 96%
- 1.4MHz Constant Frequency Operation
- Up to 1A Output Current
- Quiescent Current: 250uA (Typical)
- No Schottky Diode Required
- Current Mode Operation for Excellent Line and Load Transient Response
- Current limit, Enable function
- Short Circuit Protect (SCP)
- Build in soft start function
- 1µA Shutdown Current
- TSOT23-5L and TDFN-6L Pb-Free packages
1/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Oct.14, 2011




AXElite

AX3513A Datasheet Preview

AX3513A Datasheet

1A Synchronous Step-Down Converter

No Preview Available !

AX3513A
BLOCK DIAGRAM
VIN
REF
0.6V
Soft-Star
+
FB -
OSC
-
+Icomp
SLOPE
COMP
SET
Isense
AMP
RESET
PWM
LOGIC
NON-OVERLAP
CONTROL
Over-Temperature and
Short-Circuit Protection
Enable Logic
SW
GND
EN
PIN ASSIGNMENT
The packages of AX3513A are TSOT23-5L and TDFN-6L; the pin assignment is given by:
FB VIN
54
(Top View)
TSOT23-5L
123
EN GND SW
FB GND SW
654
GND
123
NC EN VIN
TDFN-6L (2*2)
Name
EN
VIN
SW
GND
FB
NC
Description
Enable pin
Hnormal operation
LShutdown
Power Supply Input Pin
Switch output pin. Connect
external inductor here. Minimize
trace area at this pin to reduce
EMI.
Ground Pin
Output Feedback pin
No Connect.
2/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Oct.14, 2011


Part Number AX3513A
Description 1A Synchronous Step-Down Converter
Maker AXElite
PDF Download

AX3513A Datasheet PDF





Similar Datasheet

1 AX3513 1A Synchronous Step-Down Converter
AXElite
2 AX3513A 1A Synchronous Step-Down Converter
AXElite





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy