APL3534 Datasheet, PDF (1/14 Pages) Anpec Electronics Coropration – Compact, Small Package 1A Power-Distribution Switches

APL3534/A/B
Compact, Small Package 1A Power-Distribution Switches
Features
General Description
• High Side N-MOSFET with Internal Charge Pump
• 1A Continuous Current
• Built-in Soft-Start
• Wide Supply Voltage Range
• Current-Limit and Short-Circuit Protections
• Input Voltage Under Voltage Lockout Protection
• Reverse Current Blocking when Switch Disabled
• Output OVP Protection
• Reverse Current-Limit Protection
• Output Discharge
• Over-Temperature Protection
• Lead Free and Green Devices Available (RoHS
Compliant)
Applications
• HDMI Port Protection Switches
• Bluetooth Protection Switches
• High-side Power Protection Switches
Simplified Application Circuit
VIN VOUT
APL3534
The APL3534/A/B is a power-distribution switch with cur-
rent- limiting function and output OVP protections that can
deliver current up to 1A. The device incorporates a 110mΩ
N-channel MOSFET power switch.
The device integrates some protection features, includ-
ing current-limit protection, output over-voltage protection,
over-temperature protection and UVLO. The current-limit
protection can protect down-stream devices from cata-
strophic failure by limiting the output current at current-
limit threshold during over-load or short-circuit events.
The output over-voltage protection can prevent current
flowing from VOUT to VIN when an abnormally high volt-
age exists in VOUT. The over-temperature protection func-
tion shuts down the N-channel MOSFET power switch
when the junction temperature rises beyond 140^oC and
will automatically turns on the power switch when the
temperature drops by 20^oC. The UVLO function keeps
the power switch in off state until there is a valid input
voltage present.
The device is available in lead free SOT-23-3 and
SOT-23-5 packages.
Pin Configuration
GND 1
VOUT 2
APL3534
SOT-23-3
3 VIN
GND
VIN VOUT
GND 1
EN 2
VOUT 3
5 NC
4 VIN
APL3534A
SOT-23-5
APL3534A/B
EN/ENB
GND
GND 1
ENB 2
VOUT 3
5 NC
4 VIN
APL3534B
SOT-23-5
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.4 - Oct., 2013
www.anpec.com.tw