A8181SLB SANKEN | Alldatasheet

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Technical content

Ambient Operating Temperature Storage Temperature n Features

  • Surface-mount package
  • Output current: 0.5A
  • Low circuit current Iq≤120µA (Output ON) Iq(off)≤20µA(Output OFF)
  • Low dropout voltage: V DIF≤0.3V (at IO =0.5A)
  • Output ON/OFF control terminal is compatible with LS-TTL.
  • Built-in thermal protection circuit n Applications
  • Portable phones and PHS telephones
  • Battery-driven electronic equipment n Absolute Maximum Ratings (Ta=25°C) A8181SLB Series Unit V A W Symbol VIN IO PD Tj Top Tstg Surface-Mount, Low Circuit Current, Low Dropout Voltage Dropper Type l A8181SLB Series Ratings 0.6 1.9(TC =25°C) +150 –20 to +85 –40 to +150 Allegro Microsystems, INC. product

(Output ON) Control Voltage VC (Output OFF) Terminal* Input Current n Outline Drawing n Electrical Characteristics Unit V V V mV mV mV/°C µA µA V V µA µA Symbol VIN VO Conditions VDIF Conditions ΔVOLINE Conditions ΔVOLOAD Conditions ΔVO /ΔTa Conditions Iq Conditions Iq(off) Conditions VO(off) Conditions VC. OL Conditions IC Conditions IC Conditions * Output is OFF when output ON/OFF terminal is open. (unit: mm) 10.10/10.50 IDENTIFICATION LEAD No.1 0.23/0.32 0° TO 8° 0.40/1.27 1.27typ 0.33/0.46 0.10 MIN. SEATING PLANE 10.00/10.657.4/7.6 2.35/2.65 12345678 16 15 14 13 12 11 109 a b Connect VIN terminals (pin 7,8) and VO terminals (pin 15,16) externally. q NC w NC e NC r GND t GND y VC u VIN i VIN o NC !00 NC !11 NC !2 GND !3 GND !4 NC !5 VO !6 VO l A8181SLB Series (Ta=25°C unless otherwise specified) Ratings A8181SLB typ. min. max. 4.85 5.00 5.15 VIN=5.5 to 10V , IO =0 to 0.5A, Ta=–20 to +85°C 0.3 IO =0.5A 10 30 VIN=5.5 to 10V , IO =0A 50 100 VIN=6V, IO =0 to 0.5A ±0.5 ±1.0 Tj=–20 to +85°C 92 120 VIN=10V, IO =0 to 0.5A 10 20 VIN=10V, IO =0A, VC =0.4V 2.4 VIN=10V, Ta=–20 to +85°C 0.4 VIN=10V, Ta=–20 to +85°C –0.1 +0.1 Ta=25°C –1.0 +1.0 Ta=85°C a. Part Number b. Lot Number

n Standard External Circuit *1 C1: Oscillation prevention capacitor (Approx. 0.33µF) *2 C2: Output capacitor (Approx. 4.7µF) VIN VO GND 4,5,12,13 VC Reg. Amp. TSD VREF ENABLE Drive u VINi y NC q,w,e,o,!0,!1,!4 VO!6 C 0 C 1 + VIN VIN Battery VO 4, 5, 12, 13

6 VOVC

PD =IO •[VIN(mean)–VO ] l A8181SLB Series 2.5 2.0 1.5 1.0 0.5 Power Dissipation PD (W) Ambient Temperature Ta (°C) –20 0 25 50 75 100

IO vs. VDIF Characteristics Circuit Current Rise Characteristics 150 125 100 00123456789 1 0 Input Voltage VIN (V) Circuit Current Iq (µA) IO=0AIO=0.5A (Ta=25°C) l A8181SLB Series 0.5 0.4 0.3 0.2 0.1 Output Current IO (A) Dropout Voltage VDIF (V) 0123456789 1 0 Input Voltage VIN (V) Output Voltage VO (V) IO=0A IO=0.5A