Power Management New Products – October 2012 – Sales & FAEs Download the latest version on Exar’s MyExar Comments and/or questions to

2 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: … XRP6670 Guaranteed 3A Output Current –Input Voltage: 2.6V to 5.5V PWM Current Mode Control –300kHz-2MHz Prog. Frequency –100% Duty Cycle LDO Mode Adjustable Output Voltage Range –As Low as 0.8V with ±2% Accuracy 460µA Quiescent Current Enable and Power Good Functions Soft Start, Short Circuit, Over Current and Over Temp. Protections Green 3x3 10-pin DFN Package 3A 300kHz- 2MHz Synchronous PWM Step Down Regulator High efficiency synchronous step down DC to DC converter capable of delivering up to 3Amps of current with an externally programmable operating frequency up to 2MHz. Generic Point of Loads Audio-Video Equipment Portable Equipment Industrial and Medical Equipment 4.6 x 2.3 PreviousNext  Power Conversion Development

3 EXAR CONFIDENTIALPOWER MANAGEMENT Datasheet:Preliminary Samples:Nov Evaluation Board:Nov 2012 XRP Performance 3A 300kHz- 2MHz Synchronous PWM Step Down Regulator PreviousNext  Power Conversion Development

4 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: MP2359(1.2A), MP28367(1A), MP2357(0.5A), MP2259 (1A), MP29368 (1.2A), RT8259, RT8258, LMR2010X XRP A Point-of-Load Step Down Regulator 4.5V to 18V Wide Input Voltage Range –Down to 0.81V Output Voltage Conversion PWM Current Mode Control –1.4MHz Constant Operations –Up to 92% Efficiency Fast Transient Response Enable Pin V IN Capable Built-in 2ms Soft Start Over-Current, Thermal and UVLO Protection “Green” 6-Pin SOT23 Package 1.5A 18V Non Sync. Step Down Regulator Non synchronous current mode PWM step down regulator capable of up to 1.5Amp output current. 1.4MHz constant operations and SOT23 package reduce solution size and optimize performance. Operates on single 5V, 9.6V and 12V power rails. Distributed Power Architecture Point of Load Converters Audio-Video Equipments Medical and Industrial Equipments PreviousNext  Power Conversion Production

5 EXAR CONFIDENTIALPOWER MANAGEMENT Datasheet:Online Samples:Yes Evaluation Board:Yes XRP Performance 1.5A 18V Non Sync. Step Down Regulator PreviousNext  Power Conversion Production

6 EXAR CONFIDENTIALPOWER MANAGEMENT Production Exar XRP7659 MPS MP2359 Linear Tech LT3503 Richtek RT8259/8258 TI LMR12010X Output Current1.5A1.2A1A1.2A1A Input Voltage Range4.5V-18V4.5V-24V3.6V-20V4.5V-24V3V-20V Output Voltage Range0.81V-15V 0.78V-15V0.8V-15V0.8V-17V Accuracy±3%±2.5%±1.9%±2% PWM Frequency1.4MHz 2.2MHz1.4MHz/700kHz1.6MHz SynchronousNo Max Efficiency92% 85%92%90% Light Load EfficiencyNo LDO ModeNo Quiescent Current800µA 1.9mA500µA1.5mA Features Enable Soft Start OTP - OCP UVLO Enable OTP-OCP Enable Soft Start OCP Enable OCP-OTP UVLO Enable Soft Start OTP UVLO PackageSOT23-6SOT23-6, TSOT23-62x3 DFN-6SOT23-6, TSOT23-6SOT23-6 Pin/Pin Compatible-YesNoYes Function Compatible-Yes (V IN <18V)YesYes (V IN <18V) Exar’s Advantage XRP Competition Previous 1.5A 18V Non Sync. Step Down Regulator Next  Power Conversion

7 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: XRP7674 2A Constant Output Current 4.75V to 18V Wide Single Input Voltage PWM Current Mode Control –340KHz PWM Operations –PSM Mode at light load Adjustable Output Voltage –0.925V to 16V Range –±2.7% Accuracy Soft-Start and Enable Function Over Temp., Over Current, Over Voltage, UVLO Protections Short Circuit Protection with Hiccup Mode Drop in replacement to XRP7664 “Green” 8-Pin Exp. Pad SOIC Package 2A 18V Synchronous PSM/PWM Step Down Regulators Distributed Power Architecture Point of Load Converters Audio-Video Equipments Medical and Industrial Equipments 4.6 x 2.3 Previous Competition Next Power Conversion Development 

8 EXAR CONFIDENTIALPOWER MANAGEMENT Datasheet:N/A Samples:Nov 2012 Evaluation Board:Nov 2012 XRP Performance 2A 18V Synchronous PSM/PWM Step Down Regulators Previous Production Next  Power Conversion PSM Light Load Efficiency! 100mA

9 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: XRP7675 3A Constant Output Current 4.75V to 18V Wide Single Input Voltage PWM Current Mode Control –340KHz PWM Operations –PSM Mode at light load Adjustable Output Voltage –0.925V to 16V Range –±2.7% Accuracy Soft-Start and Enable Function Over Temp., Over Current, Over Voltage, UVLO Protections Short Circuit Protection with Hiccup Mode Drop in replacement to XRP7665 “Green” 8-Pin Exp. Pad SOIC Package 3A 18V Synchronous PSM/PWM Step Down Regulators Distributed Power Architecture Point of Load Converters Audio-Video Equipments Medical and Industrial Equipments 4.6 x 2.3 Previous Competition Next Power Conversion Development 

10 EXAR CONFIDENTIALPOWER MANAGEMENT Datasheet:N/A Samples:Nov 2012 Evaluation Board:Nov 2012 XRP Performance 2A 18V Synchronous PSM/PWM Step Down Regulators PreviousNext  Power Conversion PSM Light Load Efficiency! 100mA Development

11 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: MIC20X3 to 20X6, MIC2025, MIC2075, LM4625, TPS2061/2065, US201, MP62170, RT9711, AP2181/2191 XRP2523 Single Channel Current Switch –1.5A per Channel Capable –1.6A Over-current Limit 3.2V to 6.5V Input Voltage Range USB 2.0/3.0 Compliant Active High Enable Soft Start 9ms Blanked Channel Fault Flag Indicator UVLO, Reverse Current, Short Circuit and Thermal Shutdown Protection Halogen Free 5-Pin SOT23 Package 1.5A Single Channel USB2.0/3.0 Power Distribution Switch New cost effective single channel power distribution switch with enable and fault flag. Supports USB2.0 and USB3.0 levels in a space saving 5-pin SOT23 package. Self Powered USB2.0 and 3.0 Hubs USB V BUS Power Distribution Audio-Video Equipments Generic Power Switching PreviousNext  System Controls Production

12 EXAR CONFIDENTIALPOWER MANAGEMENT Exar XRP2523 TI TPS2065/61 Micrel MIC2005L MPS MP62170 Richtek RT9711 Diode AP2181/2191 ChannelSingle Current per Channel1.5A1A1.2A1.5A Min Current Limit1.6A1.1A1.2A2.3A1.6A FET RDSon85mΩ70mΩ170mΩ75mΩ80mΩ Input Voltage Range3.2V-6.5V2.7V-5.5V 2.5V-5.5V2.7V-5.5V USB Compliance2.0/3.0 Active EnableHighHigh/Low LowHigh/Low Soft StartYes Error FlagBlanked 9msBlanked 8msBlankedBlanked 8msBlanked 12msBlanked 7ms Quiescent Current40µA43µA80µA90µA25µA45µA Features Soft Start Reverse Current UVLO Short Circuit OTP Soft Start UVLO Short Circuit OTP Soft Start UVLO Kickstart OTP Reverse Current UVLO OTP Soft Start UVLO OTP Soft Start Reverse Current Short Circuit UVLO OTP PackageSOT23-5 MSOP8, SOIC8SOT23-5 Pin/Pin Compatible-No Function Compatible-Yes XRP Competition Previous 1.5A Single Channel USB2.0/3.0 Power Distribution Switch Next Power Conversion  Production

13 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible: MIC2076A, TPS2062/2066, MIC2026A, US2175 XRP2524 Dual Channel Current Switch –1.0A per Channel Capable –1.5A Over-current Limit 2.7V to 6.5V Input Voltage Range USB 2.0/3.0 Compliant Active High Independent Enables Soft Start 9ms Blanked Channel Fault Flag Indicator UVLO, Reverse Current, Short Circuit and Thermal Shutdown Protection Halogen Free 8-Pin NSOIC Package 1A Dual Channel USB2.0/3.0 Power Distribution Switch New cost effective dual channel power distribution switch with independent enables and fault flags. Supports USB2.0 and USB3.0 levels in a space saving 8-pin NSOIC package. Self Powered USB2.0 and 3.0 Hubs USB V BUS Power Distribution Audio-Video Equipments Generic Power Switching PreviousNext System Controls Pre-Production 

14 EXAR CONFIDENTIALPOWER MANAGEMENT Compatible:… XRP A Continuous Output Current –Programmable 150mA-1.2A 7.0V to 36V Single Input Voltage <1MHz Hysteretic PFM Operations –No External Compensation Circuitry –Fast Transient & Excellent Efficiency Dynamic LED Current Thermal Control LED Current Dimming –40KHz Noiseless PWM and Analog diming UVLO, Over Temperature, Open LED and Short Circuit Protections “Green” 8-Pin Exp. Pad SOIC Package 1.2A 36V Step Down LED Regulator Step down LED driver optimized to drive a string of high power LEDs at up to 1.2A of continuous current. A wide 7V to 36V input voltage range allows for single supply operations from 12V, 19V or 24V power rails. General Lighting and Displays Architectural/Accent Lighting Security and Traffic Signals Medical/Industrial Instrumentation PreviousLED LightingNext  Development

15 EXAR CONFIDENTIALPOWER MANAGEMENT Datasheet:Preliminary Samples:Yes Evaluation Board:Yes XRP Performance 1.2A 36V Step Down LED Regulator PreviousLED LightingNext  Development Dynamic LED Current Control with Temperature