MP2207 16V, 4A, 1.3MHz Synchronous Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2207 is an internally compensated 1.3MHz fixed frequency PWM synchronous step-down regulator with a 3V to 6V bias supply (VCC). MP2207 operates from a 3V to 16V input and generates an adjustable output voltage from 0.8V to 0.9xVIN at up to 4A load current. • • • • • • • • • • • • • The MP2207 integrates an 80mΩ high-side switch and an 80mΩ synchronous rectifier for high efficiency without an external Schottky diode. With peak current mode control and internal compensation, it is stable with a output ceramic capacitor and a small inductor. Fault protection includes hiccup short-circuit protection, cycle-by-cycle current limiting and thermal shutdown. Other features include frequency synchronization and internal softstart. The MP2207 is available in small 3mm x 3mm 10-lead QFN and SOIC8E packages. 4A Output Current Input Supply Range: 3V to 16V 80mΩ Internal Power MOSFET Switches All Ceramic Output Capacitors Design Up to 95% Efficiency 1.3MHz Fixed Switching Frequency Adjustable Output from 0.8V to 0.9xVIN Internal Soft-Start Frequency Synchronization Input Thermal Shutdown Cycle-by-Cycle Current Limiting Hiccup Short Circuit Protection 10-lead, 3mm x 3mm QFN and SOIC8E Packages. APPLICATIONS • • • • µP/ASIC/DSP/FPGA Core and I/O Supplies Printers and LCD TVs Network and Telecom Equipment Point of Load Regulators “MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN 3V to 16V VCC 2.5V to 6V OFF ON C1 33uF 4, 7 5 IN 6 C4 1uF C3 100nF BS SW VCC 3, 8 MP2207 10 EN/SYNC GND 2, 9 FB L1 1uH VOUT 1.8V / 4A 1 C2 47uF MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 1 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Top Marking Temperature MP2207DQ Package QFN10 (3mm x 3mm) S9 Part Number** Package Top Marking –40°C to +85°C Temperature MP2207DN SOIC8E MP2207DN –40°C to +85°C * For Tape & Reel, add suffix –Z (eg. MP2207DQ–Z). For RoHS Compliant Packaging, add suffix –LF (eg. MP2207DQ–LF–Z) ** For Tape & Reel, add suffix –Z (eg. MP2207DN–Z). For RoHS Compliant Packaging, add suffix –LF (eg. MP2207DN–LF–Z) PACKAGE REFERENCE TOP VIEW TOP VIEW FB 1 10 EN/SYNC GND 2 9 GND SW 3 8 SW IN 4 7 IN BS 5 6 VCC 1 8 EN/SYNC GND 2 7 SW IN 3 6 SW BS 4 5 VCC EXPOSED PAD ON BACKSIDE CONNECT TO GND EXPOSED PAD ON BACKSIDE QFN10 SOIC8E ABSOLUTE MAXIMUM RATINGS (1) IN to GND .................................... –0.3V to +18V SW to GND .......................... –0.5V to VIN + 0.3V .............................-2.5V to VIN + 2.5V for < 50ns FB, EN/SYNC, VCC to GND.......... –0.3V to +6.5V BS to SW .................................... –0.3V to +6.5V Continuous Power Dissipation (TA = +25°C) (2) QFN10 (3mm x 3mm) ................................ 2.5W SOIC8E...................................................... 2.5W Junction Temperature ...............................150°C Lead Temperature ....................................260°C Storage Temperature............ –65°C TO +150°C Recommended Operating Conditions FB (3) Supply Voltage VIN ..............................3V to 16V Bias Voltage VCC ...................................3V to 6V Output Voltage VOUT ..................0.8V to 0.9 x VIN Operating Temperature.............. –40°C to +85°C Thermal Resistance (4) θJA θJC QFN10 (3mm x 3mm) ............. 50 ...... 12... °C/W SOIC8E .................................. 50 ...... 10... °C/W Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA)/θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 2 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER ELECTRICAL CHARACTERISTICS (5) VCC = 3.6V, VIN=12V, TA = +25°C, unless otherwise noted. Parameters VCC Supply Current VCC Shutdown Current VCC Under Voltage Lockout Threshold VCC Under Voltage Lockout Hysteresis IN Shutdown Current IN Under Voltage Lockout Threshold, Rising Edge IN Under Voltage Lockout Hysteresis Regulated FB Voltage Condition VEN = VCC VFB = 0.85V VEN = 0V, VCC= 6V Min Typ Rising Edge μA 1 μA 2.95 mV 4 μA 2.95 300 FB Input Current EN High Threshold EN Low Threshold Internal Soft-Start Time High-Side Switch On-Resistance ISW = 300mA Low-Side Switch On-Resistance ISW = –300mA VEN = 0V; VIN = 12V SW Leakage Current VSW = 0V or 12V BS Under Voltage Lockout Threshold High-Side Switch Current Limit Sourcing Low-Side Switch Current Limit Sinking Oscillator Frequency Maximum Synch Frequency Minimum Synch Frequency Minimum On Time Maximum Duty Cycle Thermal Shutdown Threshold Hysteresis = 20°C 0.780 0.772 -50 1.6 0.800 0.820 0.828 50 120 80 80 –10 V mV 0.4 1 V 200 2.85 TA = +25°C –40°C ≤ TA ≤ +85°C VFB = 0.85V –40°C ≤ TA ≤ +85°C –40°C ≤ TA ≤ +85°C Units 750 2.8 VEN = 0V Max 10 V V nA V V µs mΩ mΩ μA 1.8 V 6.5 3.5 1.3 2 1 50 90 150 A A MHz MHz MHz ns % °C 1.6 Note: 5) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 3 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER PIN FUNCTIONS SOICE Pin# QFN Pin # 5 6 3 4, 7 6, 7 3, 8 2 2, 9 4 5 1 1 8 10 Name Description Bias Supply. This supplies power to both the internal control circuit and the gate drivers. A decoupling capacitor to ground is required close to this pin. Input Supply. This supplies power to the high side switch. A decoupling IN capacitor to ground is required close to this pin to reduce switching spikes. Switch Node Connection to the Inductor. These pins connect to the internal high SW and low-side power MOSFET switches. All SW pins must be connected together externally. Ground. Connect these pins with larger copper areas to the negative terminals GND of the input and output capacitors. Bootstrap. A capacitor between this pin and SW provides a floating supply for BS the high-side gate driver. Feedback. This is the input to the error amplifier. An external resistive divider FB connected between the output and GND is compared to the internal 0.8V reference to set the regulation voltage. Enable and Frequency Synchronization Input Pin. Forcing this pin below 0.4V shuts down the part. Forcing this pin above 1.6V turns on the part. Applying a EN/SYNC 1MHz to 2MHz clock signal to this pin synchronizes the internal oscillator frequency to the external source. VCC MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 4 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER TYPICAL PERFORMANCE CHARACTERISTICS VCC = 5V, VOUT = 1.8V, TA = +25ºC, unless otherwise noted. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 5 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER TYPICAL PERFORMANCE CHARACTERISTICS VCC = 5V, VOUT = 1.8V, TA = +25ºC, unless otherwise noted. (continued) Switching Waveform At VCC=5V VIN=12V, VOUT=1.8V, IOUT=4A VOUT/AC 20mV/div VOUT/AC 200mV/div VOUT/AC 200mV/div VSW 5V/div IINDUCTOR 2A/div IINDUCTOR 2A/div IINDUCTOR 2A/div 400ns/div Efficiency vs. Load Current Efficiency vs. Load Current 100 Efficiency vs. Load Current 100 100 VIN=12V 90 VIN=16V 85 80 75 VOUT=5V VCC=3.3V 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 LOAD CURRENT (A) 95 VIN=8V VIN=12V 90 85 VIN=16V 80 75 VOUT=3.3V VCC=5V 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 EFFICIENCY (%) 95 EFFICIENCY (%) EFFICIENCY (%) VIN=8V 95 VIN=8V 90 VIN=12V 85 VIN=16V 80 75 VOUT=3.3V VCC=3.3V 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 LOAD CURRENT (A) MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. LOAD CURRENT (A) 6 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER FUNCTIONAL BLOCK DIAGRAM VCC UVLO UVLO IN EN IN BS EN EN/SYNC LOGIC EXCLK LOGIC CLK OSC + -- EN/SYNC PWM CURRENT COMPARATOR SW SLOPE SW 0.5pF 1.2 MEG 17pF FB 0.8V -+ + COMP SLOPE COMPENSATION AND PEAK CURRENT LIMIT SOFT -START GND GND Figure 1—Functional Block Diagram MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 7 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER FUNCTIONAL DESCRIPTION PWM Control The MP2207 is a constant frequency peakcurrent-mode control PWM switching regulator. Refer to the functional block diagram. The high side N-Channel DMOS power switch turns on at the beginning of each clock cycle. The current in the inductor increases until the PWM current comparator trips to turn off the high side DMOS switch. The peak inductor current at which the current comparator shuts off the high side power switch is controlled by the COMP voltage at the output of feedback error amplifier. The transconductance from the COMP voltage to the output current is set at 11.25A/V. This current-mode control greatly simplifies the feedback compensation design by approximating the switching converter as a single-pole system. Only Type II compensation network is needed, which is integrated into the MP2207. The loop bandwidth is adjusted by changing the upper resistor value of the resistor divider at the FB pin. The internal compensation in the MP2207 simplifies the compensation design, minimizes external component counts, and keeps the flexibility of external compensation for optimal stability and transient response. Enable and Frequency Synchronization (EN/SYNC PIN) This is a dual function input pin. Forcing this pin below 0.4V for longer than 4us shuts down the part; forcing this pin above 1.6V for longer than 4µs turns on the part. Applying a 1MHz to 2MHz clock signal to this pin also synchronizes the internal oscillator frequency to the external clock. When the external clock is used, the part turns on after detecting the first few clocks regardless of duty cycles. If any ON or OFF period of the clock is longer than 4µs, the signal will be intercepted as an enable input and disables the synchronization. Soft-Start and Output Pre-Bias Startup When the soft-start period starts, an internal current source begins charging an internal softstart capacitor. During soft-start, the voltage on the soft-start capacitor is connected to the noninverting input of the error amplifier. The softstart period lasts until the voltage on the softstart capacitor exceeds the reference voltage of 0.8V. At this point the reference voltage takes over at the non-inverting error amplifier input. The soft-start time is internally set at 120µs. If the output of the MP2207 is pre-biased to a certain voltage during startup, the IC will disable the switching of both high-side and low-side switches until the voltage on the internal softstart capacitor exceeds the sensed output voltage at the FB pin. Over Current Protection The MP2207 offers cycle-to-cycle current limiting for both high-side and low-side switches. The high-side current limit is relatively constant regardless of duty cycles. When the output is shorted to ground, causing the output voltage to drop below 70% of its nominal output, the IC is shut down momentarily and begins discharging the soft start capacitor. It will restart with a full soft-start when the soft- start capacitor is fully discharged. This hiccup process is repeated until the fault is removed. Bootstrap (BST PIN) The gate driver for the high-side N-channel DMOS power switch is supplied by a bootstrap capacitor connected between the BS and SW pins. When the low-side switch is on, the capacitor is charged through an internal boost diode. When the high-side switch is on and the high-side switch turns off, the voltage on the bootstrap capacitor is boosted above the input voltage and the internal bootstrap diode prevents the capacitor from discharging. Input UVLO Both VCC and IN pins have input UVLO detection. Until both VCC and IN voltage exceed under voltage lockout threshold, the parts remain in shutdown condition. There are also under voltage lockout hysesteres at both VCC and IN pins. Vcc Power Supply Vcc is the power supply of both the internal control circuit and the gate drivers. Generally, the Vcc power supply could be provided directly by a proper power rail or generated from other Vcc generation circuits. For instance, figure 4 shows a typical Vcc generation circuit for VOUT=5V application. It is noteworthy that the voltage applied on the Vcc pin should never be higher than 6V. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 8 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER APPLICATION INFORMATION Selecting the Inductor Setting the Output Voltage The external resistor divider sets the output voltage (see Figure 1). The feedback resistor R1 also sets the feedback loop bandwidth with the internal compensation capacitor (see Figure 1). The relation between R1 and feedback loop bandwidth (fC), output capacitance (CO) is as follows: 1.24 × 106 . R1(KΩ) = fC (KHz) × CO (uF) The feedback loop bandwidth (fC) is no higher than 1/10th of switching frequency of MP2207. In the case of ceramic capacitor as CO, it’s usually set to be in the range of 50KHz and 150KHz for optimal transient performance and good phase margin. If electrolytic capacitor is used, the loop bandwidth is no higher than 1/4th of the ESR zero frequency (fESR). fESR is given by: 1 fESR = 2π × RESR × CO For example, choose fC=70KHz with ceramic capacitor, CO=47uF, R1 is estimated to be 400KΩ. R2 is then given by: R1 R2 = VOUT −1 0.8V Table 1—Resistor Selection vs. Output Voltage Setting VOUT (V) R1 (kΩ) R2 (kΩ) 1.2 1.5 1.8 2.5 3.3 400 400 400 400 400 806 453 316 187 127 L (μH) COUT (ceramic) 0.47μH-1μH 0.47μH-1μH 0.47μH-1μH 0.47μH-1μH 0.47μH-1μH 47μF 47μF 47μF 47μF 47μF A 0.47µH to 1µH inductor with DC current rating at least 25% higher than the maximum load current is recommended for most applications. For best efficiency, the inductor DC resistance shall be <10mΩ. See Table 2 for recommended inductors and manufacturers. For most designs, the inductance value can be derived from the following equation: L= VOUT x(VIN − VOUT ) VIN xΔIL xfOSC where ∆IL is Inductor Ripple Current. Choose inductor ripple current approximately 30% of the maximum load current, 4A.The maximum inductor peak current is: IL(MAX) = ILOAD + ΔIL 2 Under light load conditions, larger inductance is recommended for improved efficiency Input Capacitor Selection The input capacitor reduces the surge current drawn from the input and switching noise from the device. The input capacitor impedance at the switching frequency shall be less than input source impedance to prevent high frequency switching current passing to the input. Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their low ESR and small temperature coefficients. For most applications, a 47µF capacitor is sufficient. Table 2—Suggested Surface Mount Inductors Manufacturer Part Number Inductance (μH) Max DCR (mΩ) Current Rating (A) Dimensions L x W x H (mm3) 0.55 0.95 4.5 7.4 14 11 7×6.9×3 7×6.9×3 1 11 6.9 8.4×8.3×4 Wurth Electronics 744310055 744310095 TOKO B1015AS-1R0N MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 9 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER Output Capacitor Selection The output capacitor keeps output voltage ripple small and ensures regulation loop stable. The output capacitor impedance shall be low at the switching frequency. Ceramic capacitors with X5R or X7R dielectrics are recommended. If electrolytic capacitor is used, pay attention to output ripple voltage, extra heating, and the selection of feedback resistor R1 (refer to “Output Voltage Setting” section) due to large ESR of electrolytic capacitor. The output ripple ∆VOUT is approximately: ΔVOUT ≤ VOUT x(VIN − VOUT ) 1 x(ESR + ) VIN xfOSC xL 8xfOSC xC3 External Schottky Diode For this part, an external schottky diode is recommended to be placed close to "SW" and "GND" pins, especially when the output current is larger than 2A. With the external schottky diode, the voltage spike and negative kick on "SW" pin can be minimized; moreover, the conversion efficiency can also be improved a little. For the external schottky diode selection, it's noteworthy that the maximum reverse voltage rating of the external diode should be larger than the maximum input voltage. As for the current rating of this diode, 0.5A rating should be sufficient. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 10 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER PCB LAYOUT PCB layout is very important to achieve stable operation. It is highly recommended to duplicate EVB layout for optimum performance. If change is necessary, please follow these guidelines as follows. Here, the typical application circuit is taken as an example to illustrate the key layout rules should be followed. 1) For MP2207, a PCB layout with >=4 layers is recommended. 2) The high current paths (GND, IN and SW) should be placed very close to the device with short, direct and wide traces. Top Layer 3) Two input ceramic capacitors (10μF~22μF) are strongly recommended to be placed on both sides of the MP2207DQ package and keep them as close as possible to the “IN” and “GND” pins. 4) A RC low pass filter is recommended for VCC supply. The Vcc decoupling capacitor must be placed as close as possible to “VCC” pin and “GND” pin. 5) The external feedback resistors shall be placed next to the FB pin. Keep the FB trace as short as possible. 6) Keep the switching node SW short and away from the feedback network. Inner Layer 1 Inner Layer 2 Bottom Layer Figure 2 —Recommended PCB Layout MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 11 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER APPLICATION CIRCUIT Figure 3 —Typical Application Circuit of MP2207 D2 B0530 Vin 9V to 16V C1 22uF R4 10k C2 22uF 4,7 6 Z1 4.7V Q1 MMBT3904 C4 1uF R3 100k IN C5 100nF 5 BS SW Vcc 3,8 MP2207 10 EN/SYNC FB 1 GND 2,9 D1 B0530 L1 1uH Vout 5V/4A R1 400k R2 76.8k C3 47uF Figure 4 —MP2207 with a Vcc Generation Circuit MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 12 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER PACKAGE INFORMATION QFN10 (3mm x 3mm) 2.90 3.10 0.30 0.50 PIN 1 ID MARKING 0.18 0.30 2.90 3.10 PIN 1 ID INDEX AREA 1.45 1.75 PIN 1 ID SEE DETAIL A 10 1 2.25 2.55 0.50 BSC 5 6 TOP VIEW BOTTOM VIEW PIN 1 ID OPTION A R0.20 TYP. PIN 1 ID OPTION B R0.20 TYP. 0.80 1.00 0.20 REF 0.00 0.05 SIDE VIEW DETAIL A NOTE: 2.90 0.70 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX. 4) DRAWING CONFORMS TO JEDEC MO-229, VARIATION VEED-5. 5) DRAWING IS NOT TO SCALE. 1.70 0.25 2.50 0.50 RECOMMENDED LAND PATTERN MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 13 MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER SOIC8E (EXPOSED PAD) 0.189(4.80) 0.197(5.00) 0.124(3.15) 0.136(3.45) 8 5 0.150(3.80) 0.157(4.00) PIN 1 ID 1 0.228(5.80) 0.244(6.20) 0.089(2.26) 0.101(2.56) 4 TOP VIEW BOTTOM VIEW SEE DETAIL "A" 0.051(1.30) 0.067(1.70) SEATING PLANE 0.000(0.00) 0.006(0.15) 0.013(0.33) 0.020(0.51) 0.0075(0.19) 0.0098(0.25) SIDE VIEW 0.050(1.27) BSC FRONT VIEW 0.010(0.25) x 45o 0.020(0.50) GAUGE PLANE 0.010(0.25) BSC 0.050(1.27) 0.024(0.61) 0o-8o 0.016(0.41) 0.050(1.27) 0.063(1.60) DETAIL "A" 0.103(2.62) 0.138(3.51) RECOMMENDED LAND PATTERN 0.213(5.40) NOTE: 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX. 5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION BA. 6) DRAWING IS NOT TO SCALE. NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP2207 Rev. 0.92 www.MonolithicPower.com 9/1/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2010 MPS. All Rights Reserved. 14