AAT2510 AAT, AAT2510 Datasheet
AAT2510
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AAT2510 Summary of contents
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... General Description The AAT2510 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product fam- ily comprised of two 1MHz step-down con- verters designed to minimize external component size and cost. The input voltage ranges from 2.7V to 5.5V. The output voltage ranges from 0.6V to the maximum applied input voltage and is either fixed or externally adjustable ...
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... Exposed paddle (bottom). Use properly sized vias for thermal coupling to the ground plane. See section on PCB layout guidelines. Pin Configuration 2 Dual 400mA, 1MHz Step-Down DC-DC Converter TDFN33-12 (Top View) EN1 VIN1 1 12 FB1 LX1 2 11 SGND1 GND1 3 10 EN2 VIN2 4 9 FB2 LX2 5 8 SGND2 GND2 6 7 AAT2510 2510.2005.08.1.5 ...
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... Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at condi- tions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time. 2. Mounted on an FR4 board with exposed paddle connected to ground plane. 2510.2005.08.1.5 Dual 400mA, 1MHz Step-Down DC-DC Converter 1 2 AAT2510 Value Units 6 0.3 ...
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... EN(H I Input Low Current EN 1. The AAT2510 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. For adjustable version with higher than 2.5V output, please consult your AnalogicTech representative. 4 Dual 400mA, 1MHz Step-Down DC-DC Converter 1 = 25° ...
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... Input Voltage (V) 2510.2005.08.1.5 Dual 400mA, 1MHz Step-Down DC-DC Converter 2.0 1.0 0.0 -1.0 -2.0 100 1000 0.1 2.0 1.0 0.0 -1.0 -2.0 100 1000 0.1 Output Voltage Error vs. Temperature 2.0 1.0 0.0 -1.0 -2.0 4.7 5.1 5.5 -40 AAT2510 Load Regulation = 2.5V 4.7µ µ OUT 3.6V IN 1.0 10 100 Output Current (mA) DC Regulation = 1.8V 4.7µ µ OUT 3.6V IN 1.0 10 100 Output Current (mA 3.6V ...
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... V 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 5.0 5.5 6.0 (30mA - 300mA 10µ µ 100pF; see Figure 2) 0.1 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 5.0 5.5 6.0 AAT2510 (V = 1.8V) O 85°C 25°C -40°C 3.5 4.0 4.5 5.0 5.5 Input Voltage (V) Load Transient Response = 1.8V 10µ µ 3.6V OUT 1.4 1.2 1.0 300mA 0.8 0.6 30mA 0.4 0.2 0.0 -0.2 Time (25µs/div) Load Transient Response = 3.6V 1.8V; IN OUT 1.4 1.2 300mA 1 ...
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... OUT -0.3 -0.35 2.5 3.0 3.5 4.0 4.5 Input Voltage (V) Output Ripple (V = 3.6V 1.8V; 400mA) IN OUT -20 -40 -60 -80 -100 -120 Time (250ns/div) 2510.2005.08.1.5 Dual 400mA, 1MHz Step-Down DC-DC Converter 1.90 1.4 1.85 1.2 1.80 1.0 1.75 0.8 1.70 0.6 1.65 0.4 1.60 0.2 1.55 0.0 -0.2 1.50 4.0 3.0 2.0 1 10mA OUT 0.0 -1.0 -2.0 -3.0 -4.0 5.0 5.5 6.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 AAT2510 Line Transient (V = 1.8V @ 400mA) OUT 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 Time (25µ µ s/div) Soft Start (V = 3.6V 1.8V; 400mA) IN OUT 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 250µ µ s/div 7 ...
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... Note: Internal resistor divider included for ≥1.2V versions. For low voltage versions, the feedback pin is tied directly to the error amplifier input. Operation Device Summary The AAT2510 is a constant frequency peak current mode PWM converter with internal compensation. Each channel has independent input, enable, feed- back, and ground pins with non-synchronized 1MHz clocks ...
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... C2 R1 4.7µF C1 118k 10µF Figure 2: AAT2510 Adjustable Output with Enhanced Transient Response. MOSFET is turned on continuously for 100% duty cycle. At 100% duty cycle, the output voltage tracks the input voltage minus the I*R drop of the high side P-channel MOSFET R Low Supply The under-voltage lockout (UVLO) feature guaran- tees sufficient V internal circuitry prior to activation ...
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... The internal slope com- pensation for the adjustable and low-voltage fixed versions of the AAT2510 is 0.24A/µsec. This equates to a slope compensation that is 75% of the inductor current down slope for a 1.5V output and 4.7µ ...
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... The input capacitor provides a low impedance loop for the edges of pulsed current drawn by the AAT2510. Low ESR/ESL X7R and X5R ceramic capacitors are ideal for this function. To minimize the stray inductance, the capacitor should be placed as closely as possible to the IC. This keeps ...
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... S ⎛ ⎝ The adjustable version of the AAT2510 in combina- tion with an external feedforward capacitor (C4 and C5 of Figure 2) delivers enhanced transient response for extreme pulsed load applications. The addition of the feedforward capacitor typically requires a larger output capacitor (C1 and C2) for stability ...
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... · · the AAT2510 quiescent current for one chan- Q nel and t is used to estimate the full load switch- sw ing losses. For the condition where channel one is in dropout at 100% duty cycle, the total device dissipation reduces to: ...
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... PK2 O2 2 ⋅ DCR = 0.4A ⋅ 105mΩ = 17mW Dual 400mA, 1MHz Step-Down DC-DC Converter (see Table 1) ⎛ ⎞ 2.5V ⋅ 100mA ⎝ ⎠ 4.2V (see Table 1) ⎛ ⎞ 1.8V ⋅ 218mA ⎝ ⎠ 4.2V AAT2510 = 300mA LOAD = 300mA LOAD 2510.2005.08.1.5 ...
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... Dual 400mA, 1MHz Step-Down DC-DC Converter = 4.5µ 2.5V · (4.2V - 2.5V) OUT · = 10µH · 1MHz · 4.2V 2 · 4.2µW = 4.5µ 1.8V · (4.2V - 1.8V) OUT · = 4.7µH · 1.0MHz · 4.2V 2 · 20µ 9.5µF ⎛ ⎞ 25mV - 5mΩ • 4 • 1MHz ⎝ ⎠ 0.8A AAT2510 = 29mArms = 63mArms 15 ...
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... J(MAX) AMB JA LOSS see Table 3 R4 59.0k GND Figure 3: AAT2510 Evaluation Board Schematic. 1. For enhanced transient configuration C5 100pF and C1 10µF. 16 Dual 400mA, 1MHz Step-Down DC-DC Converter = 2.7V. All values assume an ambient temperature · · (R DSON(LS ...
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... OUT 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.8 1.85 2.0 2.5 Fixed Version R2, R4 Not Used V (V) OUT 0.6-3.3V Figure 4: AAT2510 Evaluation Board Top Side. 1. For reduced quiescent current, R2 and R4 = 221kΩ. 2510.2005.08.1.5 Dual 400mA, 1MHz Step-Down DC-DC Converter R2 221kΩ Ω R1, R3 (kΩ Ω ) R1, R3 (kΩ Ω ) 19.6 75.0 29.4 39.2 49.9 59.0 68.1 78.7 88.7 118 124 137 187 R1, R3 (kΩ ...
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... Dual 400mA, 1MHz Step-Down DC-DC Converter Inductance Max DC (µH) Current (A) 4.7 0.90 10 0.55 4.7 0.45 4.7 0.65 4.7 0.65 4.7 1.10 4.7 0.80 4.7 1.53 4.7 1.30 4.7 0.98 4.7 1.77 Value 4.7µF 10uF 22uF Table 5: Surface Mount Capacitors. AAT2510 DCR Size (mm) (Ω Ω ) LxWxH Type 0.11 3.8x3.8x1.8 Shielded 0.21 3.8x3.8x1.8 Shielded 0.20 2.5x3.2x2.0 Non-Shielded 0.15 2.5x3.2x2.0 Non-Shielded 0.15 2.5x3.2x1.55 Non-Shielded 0.20 5.5x6.6x1.0 1mm 0.27 3.3x3.3x1.0 1mm 0.117 4.5x3.6x1.0 1mm Shielded 0.122 5.7x4.4x1.0 1mm Shielded 0 ...
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... Q 2.85 R 2.9 S 3 XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 2510.2005.08.1.5 Dual 400mA, 1MHz Step-Down DC-DC Converter Marking 1 Channel 2 0.6V OBXYY 3.3V PNXYY 1.2V PEXYY 1.5V OTXYY 1.6V QJXYY AAT2510 Part Number (Tape and Reel) AAT2510IWP-AA-T1 AAT2510IWP-AW-T1 AAT2510IWP-IE-T1 AAT2510IWP-IG-T1 AAT2510IWP-IH- ...
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... Dual 400mA, 1MHz Step-Down DC-DC Converter TDFN33-12 Index Area (D/2 x E/2) Detail "B" 1.70 ± 0.05 Bottom View Option A: Option B: C0.30 (4x) max R0.30 (4x) max Chamfered corner Round corner Detail "A" AAT2510 0.3 ± 0.10 0.375 ± 0.125 0.16 0.075 ± 0.075 0.1 REF Pin 1 Indicator (optional) Detail "B" 2510.2005.08.1.5 ...