MIC2876 Datasheet, PDF (1/26 Pages) Microchip Technology – 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect

MIC2876
4.8A I_SW, Synchronous Boost Regulator
with Bi-Directional Load Disconnect
Features
• Up to 95% Efficiency
• Input Voltage Range from 2.5V to 5.5V
• Fully Integrated, High-Efficiency, 2 MHz
Synchronous Boost Regulator
• Bi-Directional True Load Disconnect
• Integrated Anti-Ringing Switch
• <1 µA Shutdown Current
• Bypass Mode for V_IN ≥ V_OUT
• Overcurrent Protection and Thermal Shutdown
• Fixed and Adjustable Output Versions
• 8-pin 2 mm × 2 mm UDFN package
Applications
• Tablets and Smartphones
• USB OTG and HDMI Hosts
• Portable Power Reserve Supplies
• High-Current Parallel Lithium Cell Applications
• Portable Equipment
General Description
The MIC2876 is a compact and highly efficient 2 MHz
synchronous boost regulator with a 4.8A switch. It
features a bi-directional load disconnect function that
prevents any leakage current between the input and
output when the device is disabled. The MIC2876
operates in bypass mode automatically when the input
voltage is greater than the target output voltage. At light
loads, the boost converter goes to the PFM mode to
improve the efficiency.
The MIC2876 also features an integrated anti-ringing
switch to minimize EMI.
The MIC2876 is available in a 8-pin 2 mm × 2 mm
UDFN package, with a junction temperature range of
–40°C to +125°C.
Package Types
MIC2876 (FIXED OUTPUT)
8-Pin 2x2 UDFN* (MT)
(Top View)
MIC2876 (ADJ. OUTPUT)
8-Pin 2x2 UDFN* (MT)
(Top View)
SW 1 Ÿ
PGND 2
EP
IN 3
AGND 4
8 OUT
7 ^/PG
6 ^EN
5 OUTS
SW 1 Ÿ
PGND 2
EP
IN 3
AGND 4
* Includes Exposed Thermal Pad (EP), see Table 3-1.
8 OUT
7 ^/PG
6 ^EN
5 FB
 2016 Microchip Technology Inc.
DS20005572A-page 1