AP61100Q/AP61102Q
AUTOMOTIVE-COMPLIANT, 5.5V INPUT, 1A LOW IQ SYNCHRONOUS BUCK CONVERTER
Description
Pin Assignments
The AP61100Q/AP61102Q is an automotive-compliant, 1A,
synchronous buck converter with a wide input voltage range of 2.3V to
5.5V. The device fully integrates a 110mΩ high-side power MOSFET
and an 80mΩ low-side power MOSFET to provide high-efficiency
step-down DC-DC conversion.
(Top View)
TOP
VIEW
FB 1
GND 2
The AP61100Q/AP61102Q device is easily used by minimizing the
external component count due to its adoption of Constant On-Time
(COT) control to achieve fast transient response, easy loop
stabilization, and low output voltage ripple.
6 OUT
AP61100Q
VIN 3
FB 1
5 EN
GND 2
4 SW
VIN 3
6 PG
AP61102Q
5 EN
4 SW
SOT563
SOT563
The device is available in a SOT563 package.
Features
Applications
Qualified for Automotive Applications
AEC-Q100 Qualified with the Following Results
Device Temperature Grade 1: -40°C to +125°C TA Range
Device HBM ESD Classification Level H3A
Device CDM ESD Classification Level C5
VIN: 2.3V to 5.5V
Output Voltage (VOUT): 0.6V to 3.6V
1A Continuous Output Current
0.6V ± 2% Reference Voltage
15μA Low Quiescent Current (Pulse Frequency Modulation)
2.2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
Up to 89% Efficiency at 5mA Light Load
Programmable Operation Mode Through EN
Pulse Frequency Modulation
Pulse Width Modulation Regardless of Output Load
Power-Good Indicator
AP61102Q
Protection Circuitry
Undervoltage Lockout (UVLO)
VIN Overvoltage Protection (OVP)
Peak Current Limit
Valley Current Limit
Thermal Shutdown
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
The AP61100Q and AP61102Q are suitable for automotive
applications requiring specific change control; these parts
are AEC-Q100 qualified, PPAP capable, and manufactured in
IATF 16949 certified facilities.
https://www.diodes.com/quality/product-definitions/
Notes:
5V Automotive Distributed Power Bus Supplies
Automotive Infotainment
Automotive Clusters
Automotive Telematics
Advanced Driver Assistance Systems
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
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