Datasheet LTM8052, LTM8052A (Analog Devices)

LTM8052/LTM8052A 36VIN, 5A, 2-Quadrant CVCC Step-Down µModule Regulator
FEATURES DESCRIPTION
n
Complete Step-Down Switch Mode Power Supply
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant n
CVCC: Constant-Voltage Constant-Current
constant-voltage, constant-current (CVCC) step-down n
2-Quadrant: Sources and Sinks Output Current
μModule® regulator. Included in the package are the n
Adjustable Output Current
switching controller, power switches, inductor and support n
Wide Input Voltage Range: 6V to 36V
components. Operating over an input voltage range of 6V to n
1.2V to 24V Output Voltage
36V, the LTM8052/LTM8052A supports an output voltage n Forced Continuous Operation range of 1.2V to 24V. The LTM8052/LTM8052A is able to n Selectable Switching Frequency: 100kHz to 1MHz sink or source current to maintain voltage regulation up to n (e4) RoHS Compliant Package with Gold Pad Finish the positive and negative current limits. This output current n Programmable Soft-Start limit can be set by a control voltage, a single resistor or a n Compact (11.25mm × 15mm × 2.82mm) Surface thermistor. LTM8052 features a 125% output overvoltage Mount LGA and (11.25mm × 15mm × 3.42mm) protection, while LTM8052A does not, allowing operation when the output is above the target regulation point. BGA Packages The LTM8052/LTM8052A is packaged in a compact (11.25mm × 15mm × 2.82mm) overmolded land grid ar-
APPLICATIONS
ray (LGA) and ball grid array (BGA) package suitable for n Constant-Frequency Voltage Regulation Even at automated assembly by standard surface mount equip- No Load ment. The LTM8052/LTM8052A are available with SnPb n Peltier Driver (BGA) or RoHS compliant terminal finish. n Battery Tester n
PART NUMBER BEST FOR
Battery/Supercap Charging and Cell Balancing n LTM8052 Sinking and sourcing output current for voltage Motor Drive Power Regulator regulation primarily. n High Power LED Drive LTM8052A Sinking and sourcing output current for current L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of regulation primarily. Linear Technology Corporation. All other trademarks are the property of their respective owners. LTM8026 Sourcing more than 3A of output current. Protected by U.S. Patents including 7199560, 7321203 and others pending. (Less than 3A maximum consider LTM8025.)
Click to view associated TechClip Videos. TYPICAL APPLICATION Output Voltage vs Output Current ±5A, 2.5V (2-Quadrant) µModule Voltage Regulator
3.5 LTM8052A MAINTAINS CURRENT REGULATION 3.0 LTM8052 LTM8052 TURNS OFF AT V VOUT IN* V OUTPUT OVERVOLTAGE IN 6V TO 36V VOUT 2.5V 510k 2.5 10µF ±5A RUN SS VREF 100µF 2.0 OPTIONAL SYNC CTL_I + 1.5 INPUT COMP CTL_T 330µF PROTECTION RT GND ADJ OUTPUT VOLTAGE (V) 1.0 90.9k 9.09k 0.5 0 *INPUT VOLTAGE PROTECTION MAY BE NECESSARY WHEN THE 8052 TA01a –10 –5 0 5 10 LTM8052 IS SINKING CURRENT (SEE APPLICATIONS INFORMATION) LOAD CURRENT (A) 8052 TA01b 8052fg For more information www.linear.com/LTM8052 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts