SMB135 Datasheet – Battery Charger IC

Part Number: SMB135

Function: Single-cell lithium-ion/lithium-polymer battery charger

Package: Small 1.3 x 2.1 uCSP-15 package (0.4mm pitch) Type

Manufacturer: Summit


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SMB135 image


The SMB135 is a programmable single-cell lithium-ion/lithium-polymer battery charger for a variety of portable applications. The device provides a simple and efficient way to charge high-capacity Li-Ion batteries via a USB port or an AC adapter. Unlike conventional devices, the IC’s high-efficiency operation eliminates large internal temperature rise and localized hot spot in handheld equipment. Summit’s proprietary TurboChargeTM mode allows a 750mA charge
current from a 500mA USB port, resulting to significantly reduced charge times.


• 4.35 to 6.5V input voltage range

• High-accuracy output voltage regulation: 1%

• Low reverse leakage current

• Status/Fault indicator

• Stability with ceramic capacitors

• Wide range of protection features […]

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SMB135 Datasheet