AN1201SM PANASONIC | Alldatasheet
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Technical content
1Publication date: November 2001 SDE00001BEB AN1201SM Polarity inverting charge pump DC/DC converter IC I Overview AN1201SM is a negative voltage generation IC for bias voltage of transmission power module of cellular phones. This IC is a polarity inverting DC/DC converter to change from positive voltage into negative voltage. I Features
- High power conversion efficiency: 89% typ. (when output current is 5 mA.)
- Low output resistance: 20 Ω typ.
- High voltage conversion efficiency: 99.9%
- Small (S-MINI) package I Applications
- Cellular phones SMINI-5D Unit: mm I Block Diagram 0 to 0.10 0.8±0.10 0.15±0.05 0.20±0.05 2.10±0.10 2.00±0.10 1.30±0.10 VIN VOUT GND S3S1 OSC
- Marking A L Part No.: "AL" indicates AN1201SM. Pin No.1 displayed Note) The package of this product will be changed to lead-free type (SMINI-5DA). See the new package dimensions section later of this datasheet.
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Note) 1. Do not apply external currents or voltages to any pins not specifically mentioned. For circuit currents, ( +) denotes current flowing into the IC, and ( −) denotes current flowing out of the IC. 2. *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for T a = 25°C. *2: Ta = 85°C, For the independent IC without a heat sink. I Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage V IN 3.3 V Supply current I IN 10 mA Output current I O 20 mA Power dissipation *2 PD 48 mW Operating ambient temperature *2 Topr −30 to +85 °C Storage temperature *1 Tstg −55 to +125 °C I Recommended Operating Range Parameter Symbol Range Unit Supply voltage V IN 2.0 to 3.0 V I Electrical Characteristics at VIN = 2.5 V, C1 = 1 µF, Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Oscillator frequency f OSC VIN = 2.5 V, no load 66 125 198 kHz Ta = −30°C to 85°C
- Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Unless otherwise specified: VIN = 2.5 V, Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Consumption current I CC No load 0.25 1 mA Oscillator frequency f OSC No load 90 125 160 kHz Output resistance R OUT Load 500 Ω 50 Ω Voltage conversion efficiency V η No load 95.0 99.9 % Power efficiency P η Load 500 Ω 80 89 % Consumption current in Sleep mode IOFF VIN = 0.2 V, no load 1 µA I Pin Descriptions Pin No. Symbol Description 1V IN Supply voltage pin 2V OUT Inverted output pin
3 C1 Charge pump capacitor's positive polarity side connecting pin
4 GND Ground pin
5 C2 Charge pump capacitor's negative polarity side connecting pin
- PD Ta curves of SMINI-5D PD Ta I Application Circuit Example Power dissipation PD (W) 0.000 Independent IC without a heat sink R th( j-a) = 833.3˚C/W 05 0 8 5 75 10025 125 Ambient temperature Ta (°C) 0.0500.048 0.100 0.120 0.150 0.200 VIN VCC ICC VOUT GND S3S1 OSC Load 500 Ω 100 µH 1 µF2.2 µF 1 µF 1 µF
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I New Package Dimensions (Unit: mm)
- SMINI-5DA (Lead-free package) 0.2250.225 2.10±0.10 1.65±0.10 1.30±0.10 Seating plane 0.80±0.10 0 to 0.100.32±0.10 2.00±0.10 0.22+0.10 -0.05 0.11+0.10 -0.05 0.65 0.65 M0.13 0.10
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