MIC94070/71/72/73 High Side Power Switches General Description Features The MIC94070-73 are high-side load switches designed for operation between 1.7V to 5.5V. The devices contain a low on-resistance P-channel MOSFET that supports 1.2A of continuous current. The MIC94071 and MIC94073 feature an active load discharge circuit which insures capacitive loads retain no charge when the main switch is in an OFF state. MIC94070-71 feature rapid turn on while MIC94072-73 provide a slew rate controlled Soft-Start turn-on of 800µs (typical) to prevent in-rush current from glitching supply rails. An active pull-down on the enable input keeps MIC94070-73 in a default OFF state until the EN pin is pulled to a high level. Built-in level shift circuitry allows low voltage logic signals to switch higher supply voltages, or vice versa; high level logic signals can control low level voltages. MIC94070-73’s operating voltage range makes them suitable for 1-cell Lithium ion and 2- to 3-cell NiMH/NiCad/Alkaline powered systems, as well as all 5V applications. Their low operating current of 2µA and low shutdown current of <1µA maximize battery life. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. • • • • • • • • • • 1.7V to 5.5V input voltage range 1.2A continuous operating current 3A pulse current 120mΩ RDSON (typical) Built-in level shift for control logic; can be operated by 1.5V logic. Low 2µA quiescent current Soft-Start: MIC94072/73 Micro-power shutdown <1µA Load discharge circuit: MIC94071, MIC94073 ® Space saving 1.2mm × 1.6mm Thin MLF package Applications • Load switch in portable applications: - Cellular phones - PDAs - MP3 players - Digital Cameras - Portable instrumentation • Battery switch-over circuits • Level translator ________________________________________________________________________________________________________ Typical Application MIC94070, 72 Load Switch Application MIC94071, 73 Load Switch with Capacitive Load Discharge MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com September 2007 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Ordering Information (1) Part Number Part Marking Standard — Pb-Free MIC94070YC6 Standard — Pb-Free — MIC94071YC6 — 70P 71P — Fast Turn On SoftStart Load Discharge Package ● ● SC-70-6 SC-70-6 ● MIC94072YC6 — 72P ● — MIC94073YC6 — 73P ● — MIC94070YMT — P70 ● — MIC94071YMT — P71 ● — MIC94072YMT — P72 ● — MIC94073YMT — P73 ● SC-70-6 SC-70-6 ● ● ● 1.2mm x 1.6mm Thin MLF ® 1.2mm x 1.6mm Thin MLF ® 1.2mm x 1.6mm Thin MLF ® 1.2mm x 1.6mm Thin MLF ® Notes 1. Under-bar symbol on SC-70 Pb-free packages may not be to scale. Pin Configuration ® SC-70-6 (C6) 1.2x1.6 mm Thin MLF (MT) Pin Description Pin Number Pin Name Pin Function SC-70 MLF 1 1 VOUT Drain of P-channel MOSFET. 2,5 2 GND Ground and the backside pad (MLF only) should both be connected to electrical ground. 4 3 VIN Source of P-channel MOSFET. 3 4 EN Enable (Input): Active-high CMOS compatible control input for switch A. Do not leave floating. 6 -- NIC No Internal Connection. A signal or voltage applied to this pin will have no effect on device operation. September 2007 2 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Absolute Maximum Ratings (1) Operating Ratings (2) Input Voltage (VIN)................................................ +6V Enable Voltage (VEN) .......................................... +6V (3) Continuous Drain Current (ID) ® TA = 25°C (MLF ) ....................................... ±1.2A TA = 25°C (SC-70) ...................................... ±1.2A (4) Pulsed Drain Current (IDP) ............................. ±3.0A (4) Continuous Diode Current (IS) ..................... –50mA Storage Temperature (Ts) ............... –55°C to +150°C (6) ESD Rating – HBM ...........................................4KV Input Voltage (VIN) ................................ +1.7 to +5.5V Junction Temperature (TJ)...............–40°C to +125°C Package Thermal Resistance SC-70-6 (θJA) ........................................ 240°C/W ® 1.2mm × 1.6mm MLF (θJA).................. 172°C/W ® (3) 1.2mm × 1.6mm MLF (θJC) .............. 134°C/W Electrical Characteristics TA = 25°C, bold values indicate –40°C< TA < +85°C, unless noted. Symbol Parameter Condition Min VEN_TH Enable Threshold Voltage VIN = 1.8V to 4.5V, ID = –250µA VIN = 1.7V to 4.5V, ID = –250µA IQ Supply Current Max Units 0.5 1.2 V 0.4 1.2 V 50nA 5 µA 2 4 µA 25nA 1 µA 50nA 1 µA VIN = +5.0V, ID = –100mA, VEN = 1.5V 120 170 mΩ VIN = +4.5V, ID = –100mA, VEN = 1.5V 130 185 mΩ VIN = +3.6V, ID = –100mA, VEN = 1.5V 145 210 mΩ VIN = +2.5V, ID = –100mA, VEN = 1.5V 165 225 mΩ VIN = +1.8V, ID = –100mA, VEN = 1.5V 200 260 mΩ VIN = +1.7V, ID = –100mA, VEN = 1.5V 210 285 mΩ VIN = +5.0V, ID = –100mA, VEN = 1.5V 100 160 mΩ VIN = +4.5V, ID = –100mA, VEN = 1.5V 110 165 mΩ VIN = +3.6V, ID = –100mA, VEN = 1.5V 125 180 mΩ VIN = +2.5V, ID = –100mA, VEN = 1.5V 145 200 mΩ VIN = +1.8V, ID = –100mA, VEN = 1.5V 180 240 mΩ VIN = +1.7V, ID = –100mA, VEN = 1.5V 190 265 mΩ VIN = +3.6V, ITEST = 1mA, VEN = 0V 200 400 Ω VIN = VEN = 5.5V, ID = OPEN Typ Measured on the VIN pin (7) IEN Enable Input Current VIN = VEN = 5.5V, ID = OPEN ISHUT-Q Shutdown Current VIN = +5.5V, VEN = 0V, ID = OPEN Measured on the VIN pin (7) ISHUT-SWITCH OFF State Leakage Current VIN = +5.5V, VEN = 0V, ID = SHORT Measured on VOUT (7) RDS(ON) P-Channel Drain to Source ON Resistance SC-70 Package RDS(ON) P-Channel Drain to Source ON Resistance MLF Package RSHUTDOWN Turn-Off Resistance MIC94071, 73 September 2007 3 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Electrical Characteristics (Dynamic) VIN = 5V; TA = 25°C, bold values indicate –40°C< TA < +85°C, unless noted. Symbol Parameter Condition Min tON_DLY Turn-On Delay Time VIN = +3.6V, ID = –100mA, VEN = 1.5V Typ Max Units 0.85 1.5 µs 700 1200 µs 0.5 1 5 µs 500 800 1500 µs 100 200 ns 60 200 ns 60 100 ns 60 100 ns MIC94070, 71 VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94072, 73 tON_RISE Turn-On Rise Time VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94070, 71 VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94072, 73 tOFF_DLY Turn-Off Delay Time VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94070, 71 VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94072, 73 tOFF_FALL Turn-Off Fall Time VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94070, 71 VIN = +3.6V, ID = –100mA, VEN = 1.5V MIC94072, 73 Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. With backside thermal contact to PCB. 4. Pulse width <300µs with < 2% duty cycle. 5. Continuous body diode current conduction (reverse conduction, i.e. VOUT to VIN) is not recommended. 6. Devices are ESD sensitive. Handling precautions recommended. HBM (Human body model), 1.5k in series with 100pF. 7. Measured on the MIC94070YMT, for other part numbers, please contact Micrel. September 2007 4 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Typical Characteristics September 2007 5 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Functional Characteristics MIC94070 September 2007 6 M9999-090507 Micrel, Inc. MIC94070/71/72/73 MIC94071 September 2007 7 M9999-090507 Micrel, Inc. MIC94070/71/72/73 MIC94072 September 2007 8 M9999-090507 Micrel, Inc. MIC94070/71/72/73 MIC94073 September 2007 9 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Package Information 6-Pin SC-70 (C6) ® 4-Pin Thin MLF (MT) September 2007 10 M9999-090507 Micrel, Inc. MIC94070/71/72/73 Recommended Land Pattern for MLF 1.2x1.6 4 Lead Optional for maximum thermal performance. Heatsink should be connected to GND plane of PCB for maximum thermal performance. Disclaimer: This is only a recommendation based on information available to Micrel from its suppliers. Actual land pattern may have to be significantly different due to various materials and processes used in PCB assembly. Micrel makes no representation or warranty of performance based on the recommended land pattern." MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2007 Micrel, Incorporated. September 2007 11 M9999-090507