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The APW7176/APW7176b consists of two independent 1.5MHz con- stant frequency, current mode, and PWM step-down converters. Each converter integrates a main switch with a synchronous rectifier

发布时间2015-7-3 19:36:28
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Features

1A Output Current on Each Channel

2.7V to 5.5V Input Voltage Range

1.5MHz Constant Frequency Operation

Low Dropout Operation at 100% Duty Cycle

Synchronous Topology

0.6V Low Reference Voltage

Current Mode Operation

Over-Temperature Protection

Over-Current Protection

Up to 94% Efficiency

Internally Compensated

Lead Free and Green Devices Available

(RoHS Compliant)

General Description

The APW7176 consists of two independent 1.5MHz con-

stant frequency, current mode, and PWM step-down

converters. Each converter integrates a main switch with

a synchronous rectifier for high efficiency without an ex-

ternal Schottky diode. The APW7176 is ideal for powering

portable equipment that runs from a single cell Lithium-

Ion (Li+) battery. Each converter can supply 1A of load

current from a 2.7V to 5.5V input voltage. The output volt-

age can be regulated as low as 0.6V. The APW7176 can

also run at 100% duty cycle for low dropout applications.

Pin Configuration

APW7176

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Part_No	Package & Pins	Topology	Archit ecture	No. of PWM Outputs	Drive Lout (A)	Vin (V)		Fmax(Khz)	Vref (V)	R-Top (milohm)	R-Sync (milohm)	Iq (No load) (uA)
Part_No	Package & Pins	Topology	Archit ecture	No. of PWM Outputs	Drive Lout (A)	min	max	Fmax(Khz)	Vref (V)	R-Top (milohm)	R-Sync (milohm)	Iq (No load) (uA)
APW7083	TQFN5x6-28	Buck	CM	1	5	4.5	26	380	0.8	50	20	1000
APW7085	SOP-8	Buck	CM	1	2	4.5	26	380	0.8	100		1000
APW7089	SOP-8P	Buck	CM	1	4	4.5	26	380	0.8	80		1000
APW7104	SOT-23-5 TSOT-23-5	Buck	CM	1	1	2.7	6	1500	0.6	280	250	25
APW7104A	SOT-23-5	Buck	CM	1	1	2.7	6	1500	0.6	280	250
APW7142	SOP-8	Buck	CM	1	3	4.3	14	500	0.8	70	70	500
APW7145	SOP-8P	Buck	CM	1	3	4.3	14	500	0.8	55	45	500
APW7153B	TDFN3x3-10				3	2.6	5.5	2000	0.8	110	110	460
APW7176	TDFN3x3-10	Buck	CM	2	1	2.7	6	1500	0.6	280	250	500
APW7176A	TDFN3x3-10	Buck	CM	2	1	2.7	6	1500	0.6	280	250
APW7178	TDFN2x2-6	Buck	CM	1	1	2.7	6	1500	0.6	280	250	25
APW7178A	TDFN2x2-6	Buck	CM	1	1	2.7	6	1500	0.6	280	250
APW7179	TDFN3x3-12	Buck	CM	2	1	2.7	6	1500	0.6	280	250	25
APW7179A	TDFN3x3-12	Buck	CM	2	1	2.7	6	1500	0.6	280	250
APW7290	TDFN2x2-8		CM	1	1	3.3	8	1500	0.6	280	250	25
APW7300	SOP-8	Buck	CM	1	2	4.5	24	340	0.925	110	110	1900
APW7301	SOP-8P	Buck	CM	1	3	4.5	24	340	0.925	110	110	1900
APW7302	SOP-8	Buck	CM	1	2	4.5	24	340	0.92	130	130	1900
APW7302B	SOP-8P	Buck	CM	1	2	4.5	24	340	0.92	130	130	1900
APW7303	SOP-8P	Buck	CM	1	3	4.5	24	340	0.92	85	85	1900
APW7304	SOP-8P	Buck	CM	1	4	4.5	24	340	0.8	85	85	1900
APW7311	SOP-8P	Buck	CM	1	3	4.5	24	1300	0.925	110	110	1900
APW7312	SOP-8	Buck	CM	1	2	4.5	24	340	0.925	110	110	1900
APW7313	SOP-8P	Buck	CM	1	3	4.5	24	340	0.925	110	110	1900
APW7314	TSOT-23-8	Buck	CM	1	2	4.5	24	500	0.8	150	70	500
APW7322	SOP-8P TDFN3x3-10	Buck	CM	1	2	2.5	6	1000	0.8	85	75	460
APW7323	SOP-8P TDFN3x3-10	Buck	CM	1	3.2	2.5	6	1000	0.8	85	75	460
APW7324	SOP-8P TDFN3x3-10	Buck	CM	1	4	2.5	6	500	0.8	85	75	460
APW7325	SOP-8P	Buck	CM	1	5	2.5	6	1000	0.6	65	55	460
APW7334	SOP-8	Buck	CM	1	2	4.5	24	340	0.8	110	110	1900
APW7335	SOP-8P	Buck	CM	1	3	4.5	24	340	0.8	110	110	1900
APW7336	TDFN3x3-10	Buck	CM	1	2	4.5	24	340	0.8	110	110	1900
APW7337	TDFN3x3-10	Buck	CM	1	3	4.5	24	340	0.8	110	110	1900
APW8713	TQFN4x4-23	Buck	COT	1	6	2.7	28	100~1000	0.8	30	9	750
APW8802	TQFN5x6-28	Buck	COT	1	8	3	25	500	0.75	12	12	400
APW8804	TDFN3x3-10	Buck	CM	1	3	2.6	6	1000	0.6	65	55	460
APW8805	TDFN3x3-10	Buck	CM	1	3	2.6	6	1000	0.6	75	55	460
APW8807	TQFN3x3-16	Buck	COT	1	8	6	28	500	0.6	24	14	80
APW8824	TSOT-23-6	Buck	CM	1	1	2.7	5.5	1500	0.6	280	250	25
APW8835	TDFN3x3-10	Buck	CM	1	3	4.5	24	600	0.8	70	70	400
APW7414	TSOT-23-8A	Buck	CM	1	2	4.5	24	500	0.788	150	70	1000
APW7319	TSOT-23-8A	Buck	CM	1	2.5	4.5	24	500	0.807	140	60	1000