> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# LT3652 Power Tracking 2A Battery Charger (SMD)

**Type:** Product page · **SKU:** COM-29756 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-lt3652-2a-solar-battery-charger-ic-smd.html ([markdown](https://core-electronics.com.au/sparkfun-lt3652-2a-solar-battery-charger-ic-smd.html.md))

The LT3652 is a complete monolithic step-down battery charger that operates over a 4.95V to 32V input voltage range. The LT3652 provides a...

## Pricing

- **Price:** $17.60 (inc GST) — $16.00 AUD, exc GST

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 21.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=COM-29756:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/COM-29756:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The LT3652 is a complete monolithic step-down battery charger that operates over a 4.95V to 32V input voltage range. The LT3652 provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any desired battery float voltage up to 14.4V can be programmed with a resistor divider.

The LT3652 employs an input voltage regulation loop, which reduces charge current if the input voltage falls below a programmed level, set with a resistor divider. When the LT3652 is powered by a solar panel, the input regulation loop is used to maintain the panel at peak output power.

The LT3652 can be configured to terminate charging when charge current falls below 1/10 of the programmed maximum (C/10). Once charging is terminated, the LT3652 enters a low-current (85µA) standby mode. An auto-recharge feature starts a new charging cycle if the battery voltage falls 2.5% below the programmed float voltage. The LT3652 also contains a programmable safety timer, used to terminate charging after a desired time is reached. This allows top-off charging at currents less than C/10.

### Features & Specs

- Current - Charging: Constant - Programmable
- Programmable Features: Current, Timer
- Charge Current - Max: 2A
- Battery Pack Voltage: 14.4V
- Voltage - Supply (Max): 32V
- Operating Temperature: -40°C ~ 125°C (TJ)
- Mounting Type: Surface Mount
- Mfg #: LT3652EMSE#PBF
 
### Documentation

- [Datasheet](https://cdn.sparkfun.com/assets/2/2/5/3/2/LT3652_datasheet_COM-29756.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/O/COM-29756-1.jpg)