DISCONTINUED PRODUCT FOR REFERENCE ONLY

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1 LW-DRPUT, 3.3 V REGULTR PRELMNRY NFRMTN (subject to change without notice) January 12, 1995 BSLUTE MXMUM RTNGS nput Voltage, V V utput Current, m* Enable nput Voltage, V E V perating Temperature Range, T C to +85 C Junction Temperature, T J C 8186 LW-DRPUT, 3.3 V REGULTR HGH EFFCENCY Designed specifically to meet the requirement for extended operation of battery-powered equipment such as cordless and cellular telephones, the 8186SLU voltage regulator offers the reduced dropout voltage and quiescent current essential for maximum battery life. pplicable also to palmtop computers and personal data assistants, the device delivers a regulated, continuous 3.3 V output at up to 75 m under normal operating conditions, or to 15 m (transient) under worst-case conditions. PMS pass element provides a typical dropout voltage of only 85 mv at 6 m of load current. The low dropout voltage permits deeper battery discharge before output regulation is lost. Furthermore, quiescent current does not increase as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. n ENBLE input gives the designer complete control over power up, standby, or power down. This device is supplied in a 6-lead small-outline plastic package (similar to the ST-89/T-243) for surface-mount applications. The 8186SLU is rated for operation over a temperature range of -2 C to +85 C. FETURES ND BENEFTS High Efficiency Provides Extended Battery Life 85 mv Typical Dropout Voltage at = 6 m 45 µ Typical Quiescent Current at V = 6 V Less Than 1 µ Sleep Current Up to 15 m utput Current CMS-Compatible N/FF Control For Power-Up, Standby, or Shutdown nternal Thermal Protection Surface-Mount Package DSCNTNUED PRDUCT FR REFERENCE NLY Storage Temperature Range, C to +15 C T S 6UT 3.3 V 1 GND VR 5 2 N Dwg. PS-21-1 * utput current rating is limited by input voltage, duty cycle, and ambient temperature. Under any set of conditions, do not exceed a junction temperature of +15 C. See next page. Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated but should be avoided. 4 3 ENBLE PPLCTNS Cordless and Cellular Telephones Personal Data ssistants Personal Communicators Palmtop Computers lways order by complete part number: 8186SLU. Data Sheet

2 LW-DRPUT, 3.3 V REGULTR FUNCTNL BLCK DGRM N 4 6 UT BS DRVE ERRR MP ENBLE ENBLE THERML PRTECT. 3 BNDGP 2 REF. 5 1 GND Dwg. FS-12-3 Terminal numbering is in accordance with E/JEDEC convention. Where EJ conventions apply, the tab is not numbered, resulting in terminal 6 being designated terminal 5. For proper operation, terminals 1 and 2 must be externally connected together. MXMUM LLWBLE UTPUT CURRENT with device mounted on 2.24" x 2.24" (56.9 mm x 56.9 mm) solder-coated copper-clad board in still air. Maximum llowable utput Current in Milliamperes with V = 8 V, T J = 15 C, Period 1 s* dc (Duty Cycle) T 1% 9% 8% 7% 6% 5% 4% 3% 2% 25 C C C C * = (T J - T )/([V - V ] R θj dc) = (15 - T )/( dc) utput current rating can be increased (to 15 m maximum) by heat sinking or reducing the input voltage. Conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated but should be avoided. 115 Northeast Cutoff, Box 1536 Worcester, Massachusetts (58) Copyright 1995 llegro MicroSystems, nc.

3 LW-DRPUT, 3.3 V REGULTR ELECTRCL CHRCTERSTCS at T = +25 C (unless otherwise noted). Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units utput Voltage V 4 V V 8 V, T = +25 C V 1 µ 1 m* -2 C T +85 C V V = 3.3 V, = 6 m*, -2 C T +85 C 3. V utput Volt. Temp. Coeff. α V V = 6 V, = 1 m ±1. mv/ C Line Regulation V ( V) 6 V V 8 V, = 1 m mv 4 V V 6 V, = 1 m 1 2 mv Load Regulation V ( ) 1 m 1 m*, V = 8 V 2 3 mv 1 m 1 m*, V = 6 V mv 1 m 1 m*, V = 4 V 8. 2 mv Dropout Voltage V min - V = 6 m* mv = 125 m* 19 3 mv Quiescent Current Q V = 6 V, 1 m 1 m*, V E 2. V 45 6 µ (GND terminal current) V = 8 V, 1 m 1 m*, V E 2. V 5 65 µ Q(off) 4 V V 8 V, V E.8 V.5 1. µ ENBLE nput Voltage V EH 4 V V 8 V, utput N 2. V V EL -2 C T +85 C utput FF.8 V ENBLE nput Current E T +85 C, V E = V = 8 V ±.1 µ Thermal Shutdown Temp. T J 15 C Thermal Resistance R θj Mounted on 2.24" x 2.24" solder-coated 258 C/W copper-clad board in still air Typical values are at T = +25 C and are given for circuit design information only. * Pulse test ( 2 ms). See previous page for duty cycle limitations.

4 LW-DRPUT, 3.3 V REGULTR TYPCL CHRCTERSTCS LD REGULTN LNE REGULTN T = -2 C 5 m NTERVLS UTPUT VLTGE in VLTS 3.3 T = -2 C V = 8 V V = 6 V V = 4 V UTPUT VLTGE in VLTS 3.3 = 1 m = m UTPUT CURRENT in m NPUT VLTGE in VLTS Dwg. GP-52-6 Dwg. GP-53-6 T = 25 C 5 m NTERVLS UTPUT VLTGE in VLTS 3.3 T = 25 C 2 V NTERVLS V = 8 V V = 4 V UTPUT VLTGE in VLTS 3.3 = m = 1 m UTPUT CURRENT in m NPUT VLTGE in VLTS Dwg. GP-52-7 Dwg. GP-53-7 CUTN: Maximum allowable duty cycle will be significantly less than 1% at high temperatures, at high input voltages, or at high output currents. See Maximum llowable utput Current table. 115 Northeast Cutoff, Box 1536 Worcester, Massachusetts (58) 853-5

5 LW-DRPUT, 3.3 V REGULTR TYPCL CHRCTERSTCS (cont d) LD REGULTN LNE REGULTN T = 85 C 5 m NTERVLS UTPUT VLTGE in VLTS 3.3 T = 85 C 2 V NTERVLS V = 8 V V = 4 V UTPUT VLTGE in VLTS 3.3 = m = 1 m UTPUT CURRENT in m Dwg. GP NPUT VLTGE in VLTS Dwg. GP-53-8 UTPUT VLTGE UTPUT VLTGE in VLTS = - 1 m T = 25 C UTPUT VLTGE in VLTS V = 6 V =.5 1. NPUT VLTGE in VLTS MBENT TEMPERTURE in C +1 Dwg. GP-59-1 Dwg. GP-5-2 CUTN: Maximum allowable duty cycle will be significantly less than 1% at high temperatures, at high input voltages, or at high output currents. See Maximum llowable utput Current table.

6 LW-DRPUT, 3.3 V REGULTR TYPCL CHRCTERSTCS (cont d) QUESCENT (GRUND TERMNL) CURRENT 6 QUESCENT (GRUND TERMNL) CURRENT in µ V = 6 V = V E 2 V +5 MBENT TEMPERTURE in C +1 QUESCENT (GRUND TERMNL) CURRENT in µ = T = 85 C 2. T = 25 C T = -2 C NPUT VLTGE in VLTS Dwg. GP-51-1 Dwg. GP-58 DRPUT VLTGE.25 DRPUT VLTGE in VLTS T = 85 C T = 25 C T = -2 C UTPUT CURRENT in m Dwg. GP-54-1 CUTN: Maximum allowable duty cycle will be significantly less than 1% at high temperatures, at high input voltages, or at high output currents. See Maximum llowable utput Current table. 115 Northeast Cutoff, Box 1536 Worcester, Massachusetts (58) 853-5

7 LW-DRPUT, 3.3 V REGULTR TYPCL CHRCTERSTCS (concluded) LD TRNSENT PERFRMNCE V = 3.5 V to 6.5 V, C as specified, T = 25 C ENBLE TRNSENT PERFRMNCE V = 3.5 V to 6.5 V, C = 1 µf, T = 25 C 3.55 V V C = 1 µf 3.3 V 3.5 V V 3.3 V V C = 1 µf 3.8 V 3.3 V 2.8 V 1 m <5 µs <6 µs V E V <1 µs <15 µs 1 m Dwg. WP-27-2 Dwg. WP-28-1

8 LW-DRPUT, 3.3 V REGULTR Dimensions in nches (for reference only) MX (5 PL) MX MX.118 BSC.35 MN.59 BSC Dwg. M-9-6 in Dimensions in Millimeters (controlling dimensions) MX (5 PL) MX MX 3. BSC.9 MN 1.5 BSC Dwg. M-9-6 mm llegro MicroSystems, nc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the design of its products. The information included herein is believed to be accurate and reliable. However, llegro MicroSystems, nc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use. NTES: 1. Lead spacing tolerance is non-cumulative. 2. Exact body and lead configuration at vendor s option within limits shown. 3.Terminal numbering is in accordance with E/JEDEC convention. Where EJ conventions apply, the tab is not numbered, resulting in terminal 6 being designated terminal Northeast Cutoff, Box 1536 Worcester, Massachusetts (58) 853-5

DISCONTINUED PRODUCT FOR REFERENCE ONLY LOW-DROPOUT, 3 V REGULATOR HIGH EFFICIENCY 3 V FEATURES AND BENEFITS ABSOLUTE MAXIMUM RATINGS APPLICATIONS GND

DISCONTINUED PRODUCT FOR REFERENCE ONLY LOW-DROPOUT, 3 V REGULATOR HIGH EFFICIENCY 3 V FEATURES AND BENEFITS ABSOLUTE MAXIMUM RATINGS APPLICATIONS GND 1 N VR 3 V 2 3 GND U Dwg. PS-22 BSLUE MXMUM RNGS nput Voltage, V.............. 1 V utput Current,......... 15 m* perating emperature Range,............. -2 C to +85 C Junction emperature, J... +15 C LW-DRPU,